/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSTestSuiteTestsTFTPFS
*
* @brief This source file contains the implementation of tests for libtftpfs.
*
* The tested source files are:
* + @ref tftpfs.c "tftpfs.c: TFTP file system"
* + @ref tftpDriver.c "tftpDriver.c: TFTP client library"
* These tests focus on testing the UDP network interaction of libtftpfs.
*/
/*
* Copyright (C) 2022 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h> /* malloc(), free() */
#include <ctype.h> /* isprint() */
#include <errno.h>
#include <sys/stat.h> /* mkdir(), open() */
#include <sys/types.h> /* mkdir(), open() */
#include <sys/socket.h> /* AF_INET, SOCK_DGRAM */
#include <fcntl.h> /* open() */
#include <unistd.h> /* read(), close(), rmdir() */
#include <rtems/tftp.h>
#include <rtems/libio.h> /* mount(), RTEMS_FILESYSTEM_TYPE_TFTPFS */
#include <rtems/test.h>
#include <rtems/test-info.h>
#include <rtems/testopts.h> /* RTEMS_TEST_VERBOSITY */
#include <rtems.h>
#include "tftpfs_udp_network_fake.h"
#include "tftpfs_interactions.h"
#include "tftp_driver.h"
#define SERV_PORT 12345
#define FIRST_TIMEOUT_MILLISECONDS 400
#define TIMEOUT_MILLISECONDS 1000
#define LARGE_BLOCK_SIZE TFTP_BLOCK_SIZE_MAX
#define SMALL_BLOCK_SIZE 12
#define SMALL_WINDOW_SIZE 4
#define T_no_more_interactions() T_assert_true( \
_Tftp_Has_no_more_interactions(), \
"The TFTP client skiped some final network interactions." \
)
/*
* Test fixture and text context
*/
typedef struct tftp_test_context {
int fd0; /* File descriptor of a file read from or written to the tftpsfs */
void *tftp_handle; /* TFTP client handle for this file transfer */
} tftp_test_context;
static const char *tftpfs_mount_point = "/tftp";
static const char *tftpfs_ipv4_loopback = TFTP_KNOWN_IPV4_ADDR0_STR;
static const char *tftpfs_server0_name = TFTP_KNOWN_SERVER0_NAME;
static const char *tftpfs_server0_ipv4 = TFTP_KNOWN_SERVER0_IPV4;
static const char *tftpfs_file = "file.txt";
static tftp_test_context tftp_context;
static void mount_tftp_fs( const char *mount_point, const char *options )
{
int result;
result = mkdir( mount_point, S_IRWXU | S_IRWXG | S_IRWXO );
T_assert_eq_int( result, 0 );
result = mount(
"",
mount_point,
RTEMS_FILESYSTEM_TYPE_TFTPFS,
RTEMS_FILESYSTEM_READ_WRITE,
options
);
T_assert_eq_int( result, 0 );
}
static void umount_tftp_fs( const char *mount_point )
{
int result;
result = unmount( mount_point );
T_assert_eq_int( result, 0 );
result = rmdir( mount_point );
T_assert_eq_int( result, 0 );
}
static void setup_rfc1350( void *context )
{
tftp_test_context *ctx = context;
_Tftp_Reset();
ctx->fd0 = -1;
ctx->tftp_handle = NULL;
mount_tftp_fs( tftpfs_mount_point, "verbose,rfc1350" );
}
static void teardown( void *context )
{
tftp_test_context *ctx = context;
if ( ctx->fd0 >= 0 ) {
close( ctx->fd0 );
}
tftp_close( ctx->tftp_handle ); /* is a no-op if NULL */
umount_tftp_fs( tftpfs_mount_point );
_Tftp_Reset();
}
static const T_fixture fixture_rfc1350 = {
.setup = setup_rfc1350,
.stop = NULL,
.teardown = teardown,
.scope = NULL,
.initial_context = &tftp_context
};
static void setup_default_options( void *context )
{
tftp_test_context *ctx = context;
_Tftp_Reset();
ctx->fd0 = -1;
ctx->tftp_handle = NULL;
mount_tftp_fs( tftpfs_mount_point, NULL );
}
static const T_fixture fixture_default_options = {
.setup = setup_default_options,
.stop = NULL,
.teardown = teardown,
.scope = NULL,
.initial_context = &tftp_context
};
static void setup_large_blocksize( void *context )
{
tftp_test_context *ctx = context;
_Tftp_Reset();
ctx->fd0 = -1;
ctx->tftp_handle = NULL;
mount_tftp_fs(
tftpfs_mount_point,
"verbose,blocksize=" RTEMS_XSTRING(LARGE_BLOCK_SIZE) ",windowsize=1"
);
}
static const T_fixture fixture_large_blocksize = {
.setup = setup_large_blocksize,
.stop = NULL,
.teardown = teardown,
.scope = NULL,
.initial_context = &tftp_context
};
static void setup_small_opt_size( void *context )
{
tftp_test_context *ctx = context;
_Tftp_Reset();
ctx->fd0 = -1;
ctx->tftp_handle = NULL;
mount_tftp_fs(
tftpfs_mount_point,
"blocksize=" RTEMS_XSTRING(SMALL_BLOCK_SIZE)
",windowsize=" RTEMS_XSTRING(SMALL_WINDOW_SIZE)
);
}
static const T_fixture fixture_small_opt_size = {
.setup = setup_small_opt_size,
.stop = NULL,
.teardown = teardown,
.scope = NULL,
.initial_context = &tftp_context
};
static void setup_mount_point( void *context )
{
int result;
_Tftp_Reset();
result = mkdir( tftpfs_mount_point, S_IRWXU | S_IRWXG | S_IRWXO );
T_assert_eq_int( result, 0 );
}
static void teardown_mount_point( void *context )
{
int result;
result = rmdir( tftpfs_mount_point );
T_assert_eq_int( result, 0 );
_Tftp_Reset();
}
static const T_fixture fixture_mount_point = {
.setup = setup_mount_point,
.stop = NULL,
.teardown = teardown_mount_point,
.scope = NULL,
.initial_context = &tftp_context
};
/*
* Test helper functions
*/
/*
* Produce an artificial file content to be able to compare the
* sent and the received file later on.
*/
static uint8_t get_file_content( size_t pos )
{
static const size_t frame_size = 100;
static const size_t num_size = 11;
static const size_t alpha_size = 53;
char buf[10];
size_t remainder = pos % frame_size;
switch ( remainder ) {
case 0:
case 1:
case 2:
sprintf( buf, "%9zu", pos - remainder );
return buf[remainder];
case 3:
case 7:
return '\'';
case 4:
case 5:
case 6:
sprintf( buf, "%9zu", pos - remainder );
return buf[remainder-1];
case 8:
case 9:
case 10:
sprintf( buf, "%9zu", pos - remainder );
return buf[remainder-2];
default:
pos -= ( pos / frame_size + 1 ) * num_size;
remainder = pos % alpha_size;
return ( remainder <= 'Z' - '@' ) ?
remainder + '@' : remainder - ( 'Z' - '@' + 1) + 'a';
}
}
/*
* Produce bad file content.
*/
static uint8_t get_bad_file_content( size_t pos )
{
static const char buf[] = "BAD!";
return (uint8_t) buf[ pos % strlen( buf ) ];
}
static const char *create_tftpfs_path(
const char *sever_addr,
const char *file_name
)
{
static char buffer[100];
int len;
len = snprintf(
buffer,
sizeof( buffer ),
"%s/%s:%s",
tftpfs_mount_point,
sever_addr,
file_name
);
T_quiet_gt_int( len, 0 );
T_quiet_lt_int( len, (int) sizeof( buffer ) );
return buffer;
}
static int read_tftp_file(
const char *path,
size_t buffer_size,
size_t max_bytes,
int *fd
)
{
char *data_buffer;
int result = 0;
int res;
ssize_t i;
ssize_t bytes = 1;
ssize_t bytes_total = 0;
int errno_store;
T_log( T_VERBOSE, "File system: open( %s, O_RDONLY )", path );
errno = 0;
*fd = open( path, O_RDONLY );
errno_store = errno;
T_log(
T_VERBOSE,
"File system: [open( %s, O_RDONLY )] = fd:%d (errno = %d)",
path,
*fd,
errno
);
if ( *fd < 0 ) {
/* open() may intentionally fail (e.g. test for invalid server address) */
T_log( T_VERBOSE, "File system: cannot open \"%s\" for reading", path );
errno = errno_store;
result = -1;
}
if ( *fd >= 0 ) {
data_buffer = malloc( buffer_size );
while ( bytes > 0 && max_bytes >= bytes ) {
errno = 0;
bytes = read(
*fd,
data_buffer,
( max_bytes > buffer_size ) ? buffer_size : max_bytes
);
errno_store = errno;
T_log(
T_VERBOSE,
"File system: [read( fd:%d, size=%zu )] = %zd (errno = %d)",
*fd,
( max_bytes > buffer_size ) ? buffer_size : max_bytes,
bytes,
errno
);
if ( bytes > 0 ) {
max_bytes -= bytes;
for ( i = 0; i < bytes; ++i ) {
if ( data_buffer[i] != get_file_content( bytes_total + i ) ) {
T_true(
false,
"File system: wrong file content '%c' (expected '%c') "
"at position %zd",
(int) ( isprint( (int) data_buffer[i] ) ? data_buffer[i] : '?' ),
(int) get_file_content( bytes_total + i ),
bytes_total + i
);
bytes = 0;
break;
}
} /* for */
bytes_total += bytes;
}
if ( bytes == 0 ) {
result = (int) bytes_total;
}
if ( bytes < 0 ) {
/* read() may intentionally fail (e.g. test lost network connection) */
T_log(
T_VERBOSE,
"File system: error reading from \"%s\" after %zd bytes",
path,
bytes_total
);
result = (int) bytes_total;
}
} /* while */
free( data_buffer );
} /* if */
if ( bytes > 0 ) {
T_log(
T_VERBOSE,
"File system: reader closes \"%s\" after %zd bytes",
path,
bytes_total
);
result = (int) bytes_total;
}
if ( *fd >= 0 ) {
res = close( *fd );
T_log(
T_VERBOSE,
"File system: [close( %s (fd:%d) )] = %d",
path,
*fd,
res
);
*fd = -1;
T_eq_int( res, 0 );
}
errno = errno_store;
return result;
}
static int write_tftp_file(
const char *path,
size_t file_size,
size_t buffer_size,
int *fd )
{
char *data_buffer;
int result = 0;
int res;
ssize_t i;
ssize_t bytes;
ssize_t bytes_total = 0;
int errno_store;
errno = 0;
T_log( T_VERBOSE, "File system: open( %s, O_WRONLY )", path );
*fd = open( path, O_WRONLY );
errno_store = errno;
T_log(
T_VERBOSE,
"File system: [open( %s, O_WRONLY )] = fd:%d (errno = %d)",
path,
*fd,
errno
);
if ( *fd < 0 ) {
/* open() may intentionally fail (e.g. test for invalid server address) */
T_log( T_VERBOSE, "File system: cannot open \"%s\" for writing", path );
errno = errno_store;
result = -1;
}
if ( *fd >= 0 ) {
data_buffer = malloc( buffer_size );
do { /* Try also to write files with 0 bytes size */
bytes = ( file_size - bytes_total >= buffer_size ) ?
buffer_size : file_size - bytes_total;
for ( i = 0; i < bytes; ++i ) {
data_buffer[i] = get_file_content( bytes_total + i );
}
errno = 0;
bytes = write( *fd, data_buffer, i );
errno_store = errno;
T_log(
T_VERBOSE,
"File system: [write( fd:%d, size=%zd )] = %zd (errno = %d)",
*fd,
i,
bytes,
errno
);
if ( bytes > 0 ) {
bytes_total += bytes;
result = (int) bytes_total;
}
if ( bytes != i ) {
/* write() may intentionally fail (e.g. test lost network connection) */
T_log(
T_VERBOSE,
"File system: error writing to \"%s\" after %zd bytes",
path,
bytes_total
);
break;
}
} while( bytes_total < file_size );
free( data_buffer );
} /* if */
if ( *fd >= 0 ) {
res = close( *fd );
if (res != 0) {
errno_store = errno;
result = res;
}
T_log(
T_VERBOSE,
"File system: [close( %s (fd:%d) )] = %d",
path,
*fd,
res
);
*fd = -1;
}
errno = errno_store;
return result;
}
static int rdwt_tftp_client_file(
const char *hostname,
const char *filename,
bool is_for_reading,
ssize_t file_size, /* Only used when `is_for_reading == false` */
const tftp_net_config *config,
void **tftp_handle
)
{
const static size_t buffer_size = 4001;
char *data_buffer;
int res = 0;
ssize_t i;
ssize_t bytes = 1;
ssize_t bytes_total = 0;
int errno_store = 0;
if ( *tftp_handle == NULL ) {
T_log(
T_VERBOSE,
"TFTP Client: tftp_open( \"%s\", \"%s\", %s, ... )",
hostname,
filename,
is_for_reading ? "read" : "write"
);
res = tftp_open(
hostname,
filename,
is_for_reading,
config,
tftp_handle
);
T_log(
T_VERBOSE,
"TFTP Client: [tftp_open( \"%s\", \"%s\", %s, ... )] = %d (handle:%p)",
hostname,
filename,
is_for_reading ? "read" : "write",
res,
*tftp_handle
);
} else {
T_log(
T_VERBOSE,
"TFTP Client: \"%s\":\"%s\" already open for %s, handle: %p ",
hostname,
filename,
is_for_reading ? "read" : "write",
*tftp_handle
);
}
if ( res != 0 ) {
/* open() may intentionally fail (e.g. test for invalid server address) */
T_log(
T_VERBOSE,
"TFTP client: cannot open \"%s\":\"%s\" for %s",
hostname,
filename,
is_for_reading ? "reading" : "writing"
);
errno_store = res;
} else {
T_assert_not_null( *tftp_handle );
}
if ( *tftp_handle != NULL ) {
data_buffer = malloc( buffer_size );
if ( is_for_reading ) {
/* Read file */
while ( bytes > 0 ) {
errno = 0;
bytes = tftp_read(
*tftp_handle,
data_buffer,
buffer_size
);
T_log(
T_VERBOSE,
"TFTP Client: [tftp_read( %p, size=%zu )] = %zd",
*tftp_handle,
buffer_size,
bytes
);
if ( bytes > 0 ) {
for ( i = 0; i < bytes; ++i ) {
if ( data_buffer[i] != get_file_content( bytes_total + i ) ) {
T_true(
false,
"FTP Client: wrong file content '%c' (expected '%c') at positon %zd",
(int) ( isprint( (int) data_buffer[i] ) ? data_buffer[i] : '?' ),
(int) get_file_content( bytes_total + i ),
bytes_total + i
);
bytes = 0;
break;
}
} /* for */
bytes_total += bytes;
}
if ( bytes < 0 ) {
/* read() may intentionally fail (e.g. test lost network connection) */
T_log(
T_VERBOSE,
"TFTP Client: error reading from \"%s\":\"%s\" after %zd bytes",
hostname,
filename,
bytes_total
);
errno_store = -bytes;
}
} /* while */
} else {
/* Write file */
do { /* Try also to write files with 0 bytes size */
bytes = ( file_size - bytes_total >= buffer_size ) ?
buffer_size : file_size - bytes_total;
for ( i = 0; i < bytes; ++i ) {
data_buffer[i] = get_file_content( bytes_total + i );
}
errno = 0;
bytes = tftp_write( *tftp_handle, data_buffer, i );
T_log(
T_VERBOSE,
"TFTP Client: [tftp_write( %p, size=%zd )] = %zd",
*tftp_handle,
i,
bytes
);
if ( bytes > 0 ) {
bytes_total += bytes;
} else {
errno_store = -bytes;
}
if ( bytes != i ) {
/* write() may intentionally fail (e.g. test lost network connection) */
T_log(
T_VERBOSE,
"TFTP Client: error writing to \"%s\":\"%s\" after %zd bytes",
hostname,
filename,
bytes_total
);
break;
}
} while( bytes_total < file_size );
} /* if ( is_for_reading ) */
free( data_buffer );
} /* if ( *tftp_handle != NULL ) */
if ( *tftp_handle != NULL ) {
res = tftp_close( *tftp_handle );
T_log(
T_VERBOSE,
"TFTP Client: [tftp_close( \"%s\":\"%s\" (handle:%p) )] = %d",
hostname,
filename,
*tftp_handle,
res
);
*tftp_handle = NULL; /* Avoid that the fixture closes it again */
T_eq_int( res, 0 );
} /* if ( *tftp_handle != NULL ) */
errno = errno_store;
return (int) bytes_total;
}
/*
* Unit test cases
*/
/*
* This is a classical unit test for the function tftp_initialize_net_config().
* Tests:
* * tftp_initialize_net_config() sets correct default values as defined
* in the documentation of the data structures tftp_net_config
* and tftp_options.
*/
T_TEST_CASE( tftp_initialize_net_config )
{
tftp_net_config config;
memset( &config, 0, sizeof( config ) );
tftp_initialize_net_config( &config );
T_eq_u16( config.retransmissions, 6 );
T_eq_u16( config.server_port, 69 );
T_eq_u32( config.timeout, 1000 );
T_eq_u32( config.first_timeout, 400 );
T_eq_u16( config.options.block_size, 1456 );
T_eq_u16( config.options.window_size, 8 );
}
/*
* This is a classical unit test for the function tftp_initialize_net_config().
* Tests:
* * tftp_initialize_net_config() does not crash when called with a
* NULL pointer.
*/
T_TEST_CASE( tftp_initialize_net_config_null )
{
tftp_initialize_net_config( NULL );
}
/*
* This is a classical unit test for the function tftp_open().
* Tests:
* * tftp_open() returns an error when called with a NULL pointer
* for hostname.
*/
T_TEST_CASE_FIXTURE( tftp_open_null_hostname, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int res;
res = tftp_open(
NULL, /* hostname */
tftpfs_file,
true, /* is_for_reading */
NULL, /* config */
&ctx->tftp_handle
);
T_eq_int( res, EINVAL );
T_null( ctx->tftp_handle );
}
/*
* This is a classical unit test for the function tftp_open().
* Tests:
* * tftp_open() returns an error when called with a NULL pointer
* for filename.
*/
T_TEST_CASE_FIXTURE( tftp_open_null_filename, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int res;
res = tftp_open(
tftpfs_ipv4_loopback,
NULL, /* filename */
true, /* is_for_reading */
NULL, /* config */
&ctx->tftp_handle
);
T_eq_int( res, EINVAL );
T_null( ctx->tftp_handle );
}
/*
* This is a classical unit test for the function tftp_open().
* Tests:
* * tftp_open() returns an error when called with a NULL pointer
* for tftp_handle.
*/
T_TEST_CASE( tftp_open_null_tftp_handle )
{
int res;
res = tftp_open(
tftpfs_ipv4_loopback,
tftpfs_file,
true, /* is_for_reading */
NULL, /* config */
NULL /* tftp_handle */
);
T_eq_int( res, EINVAL );
}
/*
* This is a classical unit test for the function tftp_open().
* Tests:
* * tftp_open() returns an error when called with value 0 for
* option window_size.
*/
T_TEST_CASE_FIXTURE( tftp_open_illegal_window_size, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
tftp_net_config config;
int res;
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
tftp_initialize_net_config( &config );
config.options.window_size = 1 - 1;
res = tftp_open(
tftpfs_ipv4_loopback,
tftpfs_file,
true, /* is_for_reading */
&config,
&ctx->tftp_handle
);
T_eq_int( res, EINVAL );
T_null( ctx->tftp_handle );
T_no_more_interactions();
}
/*
* This is a classical unit test for the function tftp_open().
* Tests:
* * tftp_open() returns an error when called with a too small
* value for option block_size.
*/
T_TEST_CASE_FIXTURE( tftp_open_block_size_too_small, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
tftp_net_config config;
int res;
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
tftp_initialize_net_config( &config );
config.options.block_size = 8 - 1;
res = tftp_open(
tftpfs_ipv4_loopback,
tftpfs_file,
true, /* is_for_reading */
&config,
&ctx->tftp_handle
);
T_eq_int( res, EINVAL );
T_null( ctx->tftp_handle );
T_no_more_interactions();
}
/*
* This is a classical unit test for the function tftp_open().
* Tests:
* * tftp_open() returns an error when called with a too large
* value for option block_size.
*/
T_TEST_CASE_FIXTURE( tftp_open_block_size_too_large, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
tftp_net_config config;
int res;
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
tftp_initialize_net_config( &config );
config.options.block_size = 65464 + 1;
res = tftp_open(
tftpfs_ipv4_loopback,
tftpfs_file,
false, /* is_for_reading */
&config,
&ctx->tftp_handle
);
T_eq_int( res, EINVAL );
T_null( ctx->tftp_handle );
T_no_more_interactions();
}
/*
* This is a classical unit test for the function tftp_read().
* Tests:
* * tftp_read() returns an error when called with a NULL pointer
* for tftp_handle.
*/
T_TEST_CASE( tftp_read_null_tftp_handle )
{
char data_buffer[10];
ssize_t res;
res = tftp_read(
NULL, /* tftp_handle */
data_buffer,
sizeof( data_buffer)
);
T_eq_int( res, -EIO );
}
/*
* This is a classical unit test for the function tftp_read().
* Tests:
* * tftp_read() returns an error when called with a NULL pointer
* for buffer.
*/
T_TEST_CASE( tftp_read_null_buffer )
{
int tftp_handle;
ssize_t res;
res = tftp_read(
&tftp_handle,
NULL, /* buffer */
8
);
T_eq_int( res, -EIO );
}
/*
* This is a classical unit test for the function tftp_write().
* Tests:
* * tftp_write() returns an error when called with a NULL pointer
* for tftp_handle.
*/
T_TEST_CASE( tftp_write_null_tftp_handle )
{
char data_buffer[10] = { 0 };
ssize_t res;
res = tftp_write(
NULL, /* tftp_handle */
data_buffer,
sizeof( data_buffer)
);
T_eq_int( res, -EIO );
}
/*
* This is a classical unit test for the function tftp_write().
* Tests:
* * tftp_write() returns an error when called with a NULL pointer
* for buffer.
*/
T_TEST_CASE( tftp_write_null_buffer )
{
int tftp_handle;
ssize_t res;
res = tftp_write(
&tftp_handle,
NULL, /* buffer */
8
);
T_eq_int( res, -EIO );
}
/*
* This is a classical unit test for the function tftp_close().
* Tests:
* * tftp_close() returns 0 when called with a NULL pointer.
*/
T_TEST_CASE( tftp_close_null )
{
T_eq_int( tftp_close( NULL ), 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Parsing an empty string has no effects.
*/
T_TEST_CASE( _Tftpfs_Parse_options_empty )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, TFTP_DEFAULT_BLOCK_SIZE );
T_eq_u16( config.options.window_size, TFTP_DEFAULT_WINDOW_SIZE );
T_eq_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Providing an NULL pointer instead of a string has no effect.
*/
T_TEST_CASE( _Tftpfs_Parse_options_null )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( NULL, &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, TFTP_DEFAULT_BLOCK_SIZE );
T_eq_u16( config.options.window_size, TFTP_DEFAULT_WINDOW_SIZE );
T_eq_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Option "verbose" has the desired effect.
*/
T_TEST_CASE( _Tftpfs_Parse_options_verbose )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "verbose", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, TFTP_DEFAULT_BLOCK_SIZE );
T_eq_u16( config.options.window_size, TFTP_DEFAULT_WINDOW_SIZE );
T_gt_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Option "rfc1350" has the desired effect.
*/
T_TEST_CASE( _Tftpfs_Parse_options_rfc1350 )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "rfc1350", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, TFTP_RFC1350_BLOCK_SIZE );
T_eq_u16( config.options.window_size, TFTP_RFC1350_WINDOW_SIZE );
T_eq_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Option "blocksize" has the desired effect.
*/
T_TEST_CASE( _Tftpfs_Parse_options_blocksize )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "blocksize=21", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, 21 );
T_eq_u16( config.options.window_size, TFTP_DEFAULT_WINDOW_SIZE );
T_eq_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Option "windowsize" has the desired effect.
*/
T_TEST_CASE( _Tftpfs_Parse_options_windowsize )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "windowsize=13", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, TFTP_DEFAULT_BLOCK_SIZE );
T_eq_u16( config.options.window_size, 13 );
T_eq_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Processing of all options in one string works as expected.
*/
T_TEST_CASE( _Tftpfs_Parse_options_all )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "rfc1350,blocksize=1234,windowsize=4567,verbose", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, 1234 );
T_eq_u16( config.options.window_size, 4567 );
T_gt_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Parser ignores unnecessary commas.
*/
T_TEST_CASE( _Tftpfs_Parse_options_surplus_comma )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( ",blocksize=1234,,,,windowsize=4567,,", &config, &flags );
T_eq_sz( err_pos, 0 );
T_eq_u16( config.options.block_size, 1234 );
T_eq_u16( config.options.window_size, 4567 );
T_eq_u32( flags, 0 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Parser detects a bad value.
*/
T_TEST_CASE( _Tftpfs_Parse_options_bad_value )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "blocksize=123.4,windowsize=4567", &config, &flags );
T_eq_sz( err_pos, 14 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Parser detects an illegal option.
*/
T_TEST_CASE( _Tftpfs_Parse_options_illegal_option )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "blocksize=123,illegal", &config, &flags );
T_eq_sz( err_pos, 15 );
}
/*
* This is a classical unit test for the function _Tftpfs_Parse_options().
* Tests:
* * Parser detects a truncated option.
*/
T_TEST_CASE( _Tftpfs_Parse_options_truncated_option )
{
size_t err_pos;
uint32_t flags = 0;
tftp_net_config config;
tftp_initialize_net_config( &config );
err_pos = _Tftpfs_Parse_options( "blocksize", &config, &flags );
T_eq_sz( err_pos, 1 );
}
/*
* This is a classical unit test for the function rtems_tftpfs_initialize().
* Tests:
* * Correct error handling in case mount options cannot be parsed.
*/
T_TEST_CASE_FIXTURE( mount_with_bad_options, &fixture_mount_point )
{
int result;
result = mount(
"",
tftpfs_mount_point,
RTEMS_FILESYSTEM_TYPE_TFTPFS,
RTEMS_FILESYSTEM_READ_WRITE,
"windowsize=4567,blocksize=123bad"
);
T_assert_le_int( result, -1 );
T_assert_eq_int( errno, EINVAL );
}
/*
* Test cases for the TFTP client interface
*
* Since the TFTP file system uses the TFTP client interface for all
* file transfers, the function of the TFTP client is almost
* completely tested by the tests for the file system interface.
* The test cases here - for the TFTP client interface - test only
* those aspects not (easily) testable through the file system interface.
*/
/*
* Read a file from the server using the TFTP client interface.
* The file is one byte long. No timeouts, packet loss, ...
* Tests:
* * tftp_open() called with NULL for config uses
* default configuration values.
* * Read a file using only the TFTP client (i.e. not using the
* file system)
*/
T_TEST_CASE_FIXTURE( client_open_with_NULL_config, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
1, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += 1;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = rdwt_tftp_client_file(
tftpfs_ipv4_loopback,
tftpfs_file,
true, /* is_for_reading */
-1, /* file_size for writing files only */
NULL, /* config */
&ctx->tftp_handle
);
T_eq_sz( bytes_read, pos_in_file );
T_eq_int( errno, 0 );
T_no_more_interactions();
}
/*
* Read a very short file from the server using the TFTP client interface.
* The file is one data packet long. Use none-default configuration values.
* The second and the third DATA packets are lost. This causes
* a termination of the connection because only two retransmissions are
* configured.
* Tests:
* * tftp_open() called with all configuration values having
* none default values.
* * The test writes a file using only the TFTP client (i.e. not using the
* file system API).
* * The client uses the none default configuration values:
* retransmissions, server_port, timeout, first_timeout,
* block_size, window_size.
* * The server sends the options in a different order than the client.
* * The option names in the OACK can be upper or lower case.
* * If windowsize > 1, the client sends ACK only each windowsize packet.
* * If windowsize > 1 and no packet is received in the timeout period,
* the client retransmits the last ACK.
* * The client makes a limited number of retransmissions attempts
* and then terminates the connections with an error.
*/
T_TEST_CASE_FIXTURE( client_open_with_none_default_config, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
tftp_net_config config;
int bytes_read;
uint16_t block_num = 0;
size_t pos_in_file = 0;
uint16_t retransmissions = 2;
uint16_t server_port = 3456;
uint32_t timeout = 300;
uint32_t first_timeout = 200;
uint16_t block_size = 8;
uint16_t window_size = 2;
const char options[] =
"WINDOWSIZE" "\0" "2\0"
TFTP_OPTION_BLKSIZE "\0" "8";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
server_port,
tftpfs_ipv4_loopback,
block_size,
window_size,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
first_timeout,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
first_timeout,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
pos_in_file,
block_size, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
first_timeout,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
block_size, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
first_timeout /* Timeout: No packet received within timeout period */
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num - 1, /* Block number OK: Last block successfully received */
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
timeout /* Timeout: No packet received within timeout period */
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_NO_USER,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
tftp_initialize_net_config( &config );
config.retransmissions = retransmissions;
config.server_port = server_port;
config.timeout = timeout;
config.first_timeout = first_timeout;
config.options.block_size = block_size;
config.options.window_size = window_size;
bytes_read = rdwt_tftp_client_file(
tftpfs_ipv4_loopback,
tftpfs_file,
true, /* is_for_reading */
-1, /* file_size for writing files only */
&config,
&ctx->tftp_handle
);
/*
* Not a bug but not nice: The client has received data before the connection
* breaks down due to timeout and this data is not provided to the user.
*/
T_eq_sz( bytes_read, 0 );
T_eq_int( errno, EIO );
T_no_more_interactions();
}
/*
* Attempt to write to a file open for reading using the TFTP client interface.
* Tests:
* * tftp_open() called with NULL for config uses
* default configuration values.
* * Read a file using only the TFTP client (i.e. not using the
* file system)
* * The attempt to write to a file open for reading is rejected
* with an error.
* * The server receives an error message to indicate that the client
* closes the connection without having transferred data.
*/
T_TEST_CASE_FIXTURE( client_write_to_file_opened_for_reading, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int res = 0;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( TFTP_DEFAULT_WINDOW_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
/* Sending an ACK at this place before the ERROR would be OK, too. */
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_NO_USER,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
res = tftp_open(
tftpfs_ipv4_loopback,
tftpfs_file,
true, /* is_for_reading */
NULL, /* Config */
&ctx->tftp_handle
);
T_eq_int( res, 0 );
T_assert_not_null( ctx->tftp_handle );
res = (int) tftp_write( ctx->tftp_handle, &res, 1 );
T_eq_int( res, -EIO );
res = tftp_close( ctx->tftp_handle );
ctx->tftp_handle = NULL; /* Avoid that the fixture closes it again */
T_eq_int( res, 0 );
T_no_more_interactions();
}
/*
* Attempt to read from a file open for writing using the TFTP client
* interface.
* Tests:
* * tftp_open() called with NULL for config uses
* default configuration values.
* * Read a file using only the TFTP client (i.e. not using the
* file system)
* * Attempt to read from a file open for writing is rejected with an error.
*/
T_TEST_CASE_FIXTURE( client_read_to_file_opened_for_writing, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int res = 0;
uint16_t block_num = 1;
size_t pos_in_file = 0;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( TFTP_DEFAULT_WINDOW_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0, /* Data size */
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += 0;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
res = tftp_open(
tftpfs_ipv4_loopback,
tftpfs_file,
false, /* is_for_reading */
NULL, /* config */
&ctx->tftp_handle
);
T_eq_int( res, 0 );
T_assert_not_null( ctx->tftp_handle );
res = (int) tftp_read( ctx->tftp_handle, &res, 1 );
T_eq_int( res, -EIO );
res = tftp_close( ctx->tftp_handle );
ctx->tftp_handle = NULL; /* Avoid that the fixture closes it again */
T_eq_int( res, 0 );
T_no_more_interactions();
}
/*
* Write a file to the server using the TFTP client interface.
* The test uses the default options.
* The file is 2 and a half data packet long. No timeouts, packet loss, ...
* Tests:
* * The default options (windowsize = 8 and blocksize = 1456) are used.
* * tftp_open() is called with default configuration values.
* * The test writes a file using only the TFTP client (i.e. not using the
* file system)
* * The code supports the use of a server name instead of an IP address.
* * The first window is also the last window.
* * The only ACK packet is the one at the end of window.
* * Between sending data packets, the client checks whether any packets
* are received.
* * The client handles files correctly which end in the middle of a window.
*/
T_TEST_CASE_FIXTURE( client_write_simple_file, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
tftp_net_config config;
int bytes_written;
uint16_t block_num = 1;
size_t pos_in_file = 0;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_WINDOW_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE;
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE;
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE / 2, /* Data bytes in this block */
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE / 2;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
tftp_initialize_net_config( &config );
bytes_written = rdwt_tftp_client_file(
tftpfs_server0_name,
tftpfs_file,
false, /* is_for_reading */
pos_in_file, /* file_size for writing files only */
&config,
&ctx->tftp_handle
);
T_eq_sz( bytes_written, pos_in_file );
T_eq_int( errno, 0 );
T_no_more_interactions();
}
/*
* Test cases for the file system interface
*/
/*
* Read a file from the server using only RFC1350.
* The file is two and a half data packet long. No timeouts, packet loss, ...
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first and second data packet are full.
* * The third data packet signals the end of transfer.
* * Read the file from file system in one big chunk of exactly
* the size of the file.
*/
T_TEST_CASE_FIXTURE( read_simple_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 2;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
/* Bytes read per call to read() */
2 * TFTP_RFC1350_BLOCK_SIZE + TFTP_RFC1350_BLOCK_SIZE / 2,
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is one byte long. No timeouts, packet loss, ...
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is not full and signals the end of the transfer.
* * The test reads a file from the file system in one-byte chunks.
*/
T_TEST_CASE_FIXTURE( read_tiny_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
1, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += 1;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
1, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is one data packet long. No timeouts, packet loss, ...
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is full.
* * The second data packet is empty and signals the end of the transfer.
* * The client handles an empty data packet correctly as end
* of file indicator.
* * The test reads a file from the file system in chunks of three quarters
* of the block size.
*/
T_TEST_CASE_FIXTURE( read_one_block_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE / 4 * 3,
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is one data packet long.
* The client receives stray packets:
* * A packet from an unknown server (wrong TID)
* * An ACK packet instead of a DATA packet
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is full.
* * The next received packet originates from a wrong TID
* (i.e. wrong connection).
* * Upon reception of a packet with a wrong TID, the client sends
* an ERROR message with code 5 and does not terminate the current
* transfer.
* * The final received packet is an ACK packet instead or the expected
* DATA packet.
* * Upon the reception of an unexpected packet, the client terminates
* the connection by sending an error packet to the server.
*/
T_TEST_CASE_FIXTURE( read_file_stray_packets, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT + 1, /* Stray packet with wrong server TID */
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_UNKNOWN_ID,
SERV_PORT + 1,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack( /* Stray ACK packet */
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE / 4 * 3,
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
/*
* The client received one packet with TFTP_RFC1350_BLOCK_SIZE
* before the error occurred. The test reads in chunks of
* TFTP_RFC1350_BLOCK_SIZE /4 * 3. Thus, after the first chunk
* the client signals the error to the test.
*
* It would be a little improvement if the client would return all
* bytes received before signaling the error.
*/
T_eq_int( bytes_read, TFTP_RFC1350_BLOCK_SIZE / 4 * 3 );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is one data packet long.
* The server sends an error message after the first DATA packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client uses a short time out for all packets.
* * The client handles error packets from the server and stops the
* connection by signaling an error to the user on the file system side.
* * The test reads a file from the file system in chunks of three quarters
* of the block size.
*/
T_TEST_CASE_FIXTURE( read_one_block_file_server_error, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
TFTP_ERROR_CODE_NO_ACCESS,
"Cannot read more",
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE / 4 * 3,
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, TFTP_RFC1350_BLOCK_SIZE / 4 * 3 );
T_eq_int( errno, EPERM );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is one data packet long.
* The server sends a malformed error packet after the first DATA packet.
* The error message in the packet is not a 0 terminated string
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client handles malformed errors from the server and does not crash.
* * The test reads a file from the file system in chunks of three quarters
* of the block size.
*/
T_TEST_CASE_FIXTURE( read_one_block_file_malformed_server_error, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
static const uint8_t packet_malformed_error[] = {
0x00, 0x05, /* Opcode = TFTP_OPCODE_ERROR */
0x00, 0x02, /* Error code = TFTP_ERROR_CODE_NO_ACCESS */
'n', 'o', ' ', 'a', 'c', 'c', 'e', 's', 's' /* missing '\0' at the end */
};
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_malformed_error ), /* Malformed ERROR packet */
packet_malformed_error,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE / 4 * 3,
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, TFTP_RFC1350_BLOCK_SIZE / 4 * 3 );
T_eq_int( errno, EPERM );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The reader on the file system side stops after having read half a
* data packet and before having received the whole file and closes the file.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is full.
* * The client handles the closing of the file by the user correctly.
* * The client sends an error to the server after the user stops reading
* the file.
* * The test reads a file from the file system in chunks of block size.
*/
T_TEST_CASE_FIXTURE( read_one_block_close_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
/* Sending an ACK at this place before the ERROR would be OK, too. */
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_NO_USER,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE / 2, /* Max bytes read from this file */
&ctx->fd0
);
T_eq_int( bytes_read, TFTP_RFC1350_BLOCK_SIZE / 2 );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The reader on the file system side just open()s and then immediately closes
* the file without ever reading a single byte.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is full.
* * The client handles the closing of the file by the user correctly.
* * The client sends an error to the server when the user closes the file.
*/
T_TEST_CASE_FIXTURE( read_close_file_immediately, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
/* Sending an ACK at this place before the ERROR would be OK, too. */
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_NO_USER,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
0, /* Max bytes read from this file */
&ctx->fd0
);
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Read an empty file from the server using only RFC1350.
* No timeouts, packet loss, ...
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of a server name instead of an IP address.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client uses a short time out for all packets.
* * The first data packet has length 0.
* * The client can read empty files from the server.
* * The test reads a file from the file system in one big chunk which
* is larger than the file.
*/
T_TEST_CASE_FIXTURE( read_empty_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_server0_name, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE,
SIZE_MAX,
&ctx->fd0
);
T_assert_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read an empty file from the server using only RFC1350.
* The first two RRQ packets are lost.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of a server name instead of an IP address.
* * The first packet is sent to standard port 69 of server.
* * The client uses a short time out for first packets.
* * The client uses a longer time out for repeated packets.
* * The client repeats lost RRQs packets.
* * The client does not repeat the ACK packet for the last DATA packet
* which signals the end of transfer.
* * The first data packet is empty and signals the end of the transfer.
* * It is possible to read a file with 0 bytes content from
* the file system.
*/
T_TEST_CASE_FIXTURE( read_empty_file_looing_rrq, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
FIRST_TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_server0_name, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE,
SIZE_MAX,
&ctx->fd0
);
T_assert_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is one and a half data packet long.
* Two data packet are lost (timeout) and the client must repeat the ACK.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * The client uses a short time out for first packets.
* * The client uses a longer time out for repeated packets.
* * The client repeats the ACK packets which are supposed
* to be lost.
* * The client does not repeat the ACK packet for the last DATA packet
* which signals the end of transfer.
* * The test reads a file in chunks of 17 bytes from file system.
*/
T_TEST_CASE_FIXTURE( read_small_file_lost_packets, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
FIRST_TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 2;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
17, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a malformed DATA packet (wrong op code).
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client uses a short time out for all packets.
* * The first data packet is full.
* * The client terminates the connection with an error message upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_small_file_malformed_packet_1, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
static const uint8_t packet_illegal_opcode_1[] = { 0x00, 0xFF, 0x00, 0x00 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_illegal_opcode_1 ), /* Malformed DATA packet */
packet_illegal_opcode_1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a malformed DATA packet (wrong op code).
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is full.
* * The second data packet is malformed.
* * The client terminates the connection with an error message upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_small_file_malformed_packet_2, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
static const uint8_t packet_illegal_opcode_2[] = { 0x03, 0x00, 0x00, 0x01 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_illegal_opcode_2 ), /* Malformed DATA packet */
packet_illegal_opcode_2,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first DATA packet received after the RRQ packet is malformed.
* It is too short with only one byte length.
* * The client sends an error and terminates the file transfer upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_file_malformed_ack_1, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_1[] = { 0x03 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_1 ), /* Malformed DATA packet */
packet_too_short_1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first DATA packet received after the RRQ packet is malformed.
* It is too short with only two bytes length.
* * The client sends an error and terminates the file transfer upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_file_malformed_ack_2, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_2[] = { 0x00, 0x03 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_2 ), /* Malformed DATA packet */
packet_too_short_2,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first DATA packet received after the RRQ packet is malformed.
* It is too short with only three bytes length.
* * The client sends an error and terminates the file transfer upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_file_malformed_ack_3, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_3[] = { 0x00, 0x03, 0x00 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_3 ), /* Malformed DATA packet */
packet_too_short_3,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a data packet with block number 0.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first DATA packet received after the RRQ packet is malformed.
* It has block number 0.
* * The client sends an error and terminates the file transfer upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_file_block_number_0, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
0, /* Wrong block number 0 */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly one data packet long.
* The client receives a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first DATA packet received after the RRQ packet is malformed.
* The packet contains an illegal op code.
* * The client sends an error and terminates the file transfer upon
* reception of a malformed packet.
*/
T_TEST_CASE_FIXTURE( read_file_illegal_opcode_1, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
size_t pos_in_file = 0;
static const uint8_t packet_illegal_opcode_1[] = { 0x00, 0xFF, 0x00, 0x00 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_illegal_opcode_1 ), /* Malformed DATA packet */
packet_illegal_opcode_1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using only RFC1350.
* The file is exactly two data packet long.
* The client receives DATA packets with wrong block numbers.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * The second RRQ is sent to the TFTP server port 69 and not to the
* port from which the first packet with the wrong block number came from.
* * The client uses a short time out for all packets.
* * The client uses a longer time out for repeated packets.
* * The client handles DATA packets with the wrong block numbers
* appropriately.
* * The third data packet is empty and signals the end of the transfer.
* * Old data packets are ignored (i.e. do not cause a retransmission).
* * Duplicates of the last data packet cause a retransmission of the
* last ACK.
* * The first data packet with a block number larger than the expected one,
* cause a retransmission of ACK or RRQ. (They can appear together
* with the windowsize option.)
* * The test reads a file from the file system in one big chunk with is larger
* than the files size.
*/
T_TEST_CASE_FIXTURE( read_two_block_file_wrong_block_numbers, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1, /* Wrong block number / duplicates last packet */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num - 1, /* Client assumes last ACK got lost and retransmits it. */
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num - 1, /* Client assumes last ACK got lost and retransmits it. */
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 2, /* Wrong block number */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num - 1, /* Client assumes last ACK got lost and retransmits it. */
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
/* Bytes read per call to read() */
3 * TFTP_RFC1350_BLOCK_SIZE,
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Attempt to read a file from the server using filename without ':'.
* Tests:
* * The TFTP FS rejects malformed file names (i.e. it does not crash).
*/
T_TEST_CASE_FIXTURE( read_malformed_filename, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
char buffer[100];
int len;
len = snprintf(
buffer,
sizeof( buffer ),
"%s/%s",
tftpfs_mount_point,
tftpfs_server0_name
);
T_quiet_gt_int( len, 0 );
T_quiet_lt_int( len, (int) sizeof( buffer ) );
bytes_read = read_tftp_file(
buffer,
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE,
SIZE_MAX,
&ctx->fd0
);
T_assert_eq_int( bytes_read, 0 );
T_assert_eq_int( errno, EINVAL );
}
/*
* Attempt to read a file from a none exiting server address.
* Tests:
* * TFTP FS returns an error if the server name cannot be resolved.
*/
T_TEST_CASE_FIXTURE( read_from_unknown_ip_address, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
bytes_read = read_tftp_file(
create_tftpfs_path( "not-existing-server-address", tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE,
SIZE_MAX,
&ctx->fd0
);
T_assert_eq_int( bytes_read, 0 );
T_assert_eq_int( errno, ENOENT );
}
/*
* Attempt to read a file which the server does not know
* No timeouts, packet loss, ...
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of a server name instead of an IP address.
* * The client handles an ERROR packet received upon sending an RRQ
* correctly.
* * TFTP FS returns an error upon the reception of the ERROR packet.
*/
T_TEST_CASE_FIXTURE( read_not_existing_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
TFTP_ERROR_CODE_NOT_FOUND,
"No such file",
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_server0_name, tftpfs_file ),
/* Bytes read per call to read() */
TFTP_RFC1350_BLOCK_SIZE,
SIZE_MAX,
&ctx->fd0
);
T_assert_eq_int( bytes_read, 0 );
T_assert_eq_int( errno, ENOENT );
T_no_more_interactions();
}
/*
* Write an empty file to the server using only RFC1350.
* The first two WRQ as well as the first two DATA packets are lost.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of a server name instead of an IP address.
* * The all WRQ are sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client uses a short time out for first packets.
* * The client uses a longer time out for repeated packets.
* * The client repeats the WRQs and DATA packets which are supposed
* to be lost.
* * When a timeout occurs, the client repeats the last and empty packet.
* * The first data packet is empty and signals the end of the transfer.
* * The test writes a file with 0 bytes content to the file system.
*/
T_TEST_CASE_FIXTURE( write_empty_file_packet_losts, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
FIRST_TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
FIRST_TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_server0_name, tftpfs_file ),
0, /* Size of file */
4, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a very short file to the server using only RFC1350.
* The file is one and half data packets long.
* The first two DATA packets and one ACK packet are lost.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of a server name instead of an IP address.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client uses a short time out for first packets.
* * The client uses a longer time out for repeated packets.
* * The client repeats sending DATA packets which are supposed
* to be lost.
* * The client also repeats the last DATA packet when it is supposed
* to be lost.
* * The client repeats sending DATA packets when an ACK packet is repeated
* (presumably the DATA packet has been lost).
* * The test writes a file to the file system in chunks of a quarter of the block size.
*/
T_TEST_CASE_FIXTURE( write_tiny_file_packet_losts, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_server0_ipv4,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
FIRST_TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num++,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num - 1, /* Repeated ACK packet received */
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2,
get_file_content,
SERV_PORT,
tftpfs_server0_ipv4,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 2;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_server0_ipv4,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_server0_name, tftpfs_file ),
TFTP_RFC1350_BLOCK_SIZE / 2 * 3, /* Size of file */
TFTP_RFC1350_BLOCK_SIZE / 4, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is 2 data packet and 1 byte long. No timeouts, packet loss, ...
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * First and second data packet is full.
* * Third data packet signals the end of transfer.
* * The test writes a file to the file system in one big chunk
* of exactly the files size.
*/
T_TEST_CASE_FIXTURE( write_simple_file, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
1, /* Data bytes in this block */
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += 1;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
pos_in_file, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* As response to the first DATA packet, the server sends an error packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first data packet is full.
* * The second packet from the server is an error packet.
* * The TFTP client ends the connection after receiving an error packet.
* * The test writes a file to the file system with a call to write()
* for each byte.
*/
T_TEST_CASE_FIXTURE( write_simple_file_disk_full, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
TFTP_ERROR_CODE_DISK_FULL,
"disk full",
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
1, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( errno, ENOSPC );
T_eq_int( bytes_written, pos_in_file - 1 );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is one and a half data packet long.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first ACK to the WRQ packet is malformed.
* It is only one byte long.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_file_malformed_ack_1, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_1[] = { 0x04 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_1 ), /* Malformed ACK packet */
packet_too_short_1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, -1 );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is one and a half data packet long.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first ACK to the WRQ packet is malformed.
* It is only two bytes long.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_file_malformed_ack_2, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_2[] = { 0x00, 0x04 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_2 ), /* Malformed ACK packet */
packet_too_short_2,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, -1 );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is one and a half data packet long.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first ACK to the WRQ packet is malformed.
* It is only three bytes long.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_file_malformed_ack_3, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_3[] = { 0x00, 0x04, 0x00 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_3 ), /* Malformed ACK packet */
packet_too_short_3,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, -1 );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is one and a half data packet long.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first ACK to the WRQ packet is malformed.
* The packet contains an illegal op code.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_file_illegal_opcode_1, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
static const uint8_t packet_illegal_opcode_1[] = { 0x00, 0xFF, 0x00, 0x00 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_illegal_opcode_1 ), /* Malformed ACK packet */
packet_illegal_opcode_1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, -1 );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * A malformed ACK packet is received by the TFTP client.
* The packet is only three bytes long.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_short_file_malformed_ACK_1, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_3[] = { 0x00, 0x04, 0x00 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_3 ), /* Malformed ACK packet */
packet_too_short_3,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
2 * TFTP_RFC1350_BLOCK_SIZE, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_written, 510 );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * A malformed ACK packet is received by the TFTP client after the first
* DATA packet has been exchanged successfully.
* The packet is only one byte long.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_short_file_malformed_ACK_2, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
static const uint8_t packet_too_short_1[] = { 0x04 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 4,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 4;
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_too_short_1 ), /* Malformed ACK packet */
packet_too_short_1,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_written, -1 );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The server sends a malformed packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * A malformed ACK packet is received by the TFTP client after the first
* DATA packet has been exchanged successfully.
* The packet contains an illegal op code.
* * The client sends an error upon the reception of a malformed packet
* and terminates the file transfer.
*/
T_TEST_CASE_FIXTURE( write_short_file_malformed_opcode, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
static const uint8_t packet_illegal_opcode_2[] = { 0x04, 0x00, 0x00, 0x01 };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_raw(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
sizeof( packet_illegal_opcode_2 ), /* Malformed ACK packet */
packet_illegal_opcode_2,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
2 * TFTP_RFC1350_BLOCK_SIZE, /* Size of file */
17, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_written, 510 );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is two and a half data packet long.
* The server sends packets with wrong block numbers.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The first ACK packet contains a wrong block number.
* * The client repeats the WRQ upon reception of an ACK with
* an too high block number.
* * The client uses a short time out for waiting on the answer of the
* first WRQ or DATA packets.
* * The client uses a long time out for waiting on the answer of
* repeated WRQ or DATA packets.
* * The first DATA packet is full.
* * The second DATA packet signals the end of transfer.
* * The client handles DATA packets with wrong block numbers
* appropriately.
* * The test writes a file to the file system with calls to write() of
* exactly block size.
*/
T_TEST_CASE_FIXTURE( write_short_file_bad_block_numbers, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1, /* Wrong block number */
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 2, /* Wrong block number */
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 4,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 2, /* Wrong block number */
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 1, /* Wrong block number */
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 4;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
TFTP_RFC1350_BLOCK_SIZE, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file to the server using only RFC1350.
* The file is one data packet long.
* The client receives a stray packet from an unknown server (wrong TID).
* Directly afterwards the expected ACK packet is lost and
* the client must retransmit the original DATA packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The code supports the use of an IPv4 address instead of a server name.
* * The first packet is sent to standard port 69 of server.
* * All other packets are sent to the port used for this connection.
* * The client uses a short time out for waiting on the answer of the
* first DATA packet.
* * The client uses a long time out for waiting on the answer of
* the repeated DATA.
* * Upon reception of a packet with a wrong TID, the client sends
* an ERROR message with code 5 but does not terminate the current
* transfer.
* * When re-transmitting the an packet, the data is intact (i.e.
* not corrupted by the reception of any packet in-between).
*/
T_TEST_CASE_FIXTURE( write_one_block_file_stray_packets, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
uint16_t block_num = 0;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT + 1, /* Stray packet with wrong server TID */
tftpfs_ipv4_loopback,
block_num,
0,
TFTP_RFC1350_BLOCK_SIZE / 2, /* Number of bytes transferred */
get_bad_file_content,
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_UNKNOWN_ID,
SERV_PORT + 1,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
FIRST_TIMEOUT_MILLISECONDS
);
_Tftp_Add_interaction_send_data( /* Retransmission of the DATA packet */
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0, /* Number of bytes */
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += 0;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
TFTP_RFC1350_BLOCK_SIZE, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server using option to increase the block size.
* The file is one data packet long. No timeouts, packet loss, ...
* Tests:
* * Only the blksize option appears in RRQ and OACK.
* * The client uses a block size which is larger than the default size.
* * The first data packet is full.
* * The second data packet is empty and signals the end of the transfer.
* * Client handles the empty data packet correctly as
* end of file indicator.
* * The test reads a file from the file system in chunks of block size.
*/
T_TEST_CASE_FIXTURE( read_file_one_large_block, &fixture_large_blocksize )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 0;
size_t pos_in_file = 0;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( LARGE_BLOCK_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
LARGE_BLOCK_SIZE,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
LARGE_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += LARGE_BLOCK_SIZE;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Try to read a file from the server using a file name too large for a RRQ.
* Tests:
* * The client rejects an attempt to open a file with a too long
* file name is with an error.
*/
T_TEST_CASE_FIXTURE( read_too_long_file_name, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
char buffer[TFTP_RFC1350_BLOCK_SIZE -
strlen( TFTP_MODE_OCTET ) - 1 - 5];
int len;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
len = sizeof( buffer ) - strlen( tftpfs_mount_point ) -
strlen( tftpfs_ipv4_loopback ) - 2 - 4;
len = snprintf(
buffer,
sizeof( buffer ),
"%s/%s:%0*d",
tftpfs_mount_point,
tftpfs_ipv4_loopback,
len,
123
);
T_quiet_gt_int( len, 0 );
T_quiet_lt_int( len, (int) sizeof( buffer ) );
bytes_read = read_tftp_file(
buffer,
TFTP_DEFAULT_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, 0 );
T_eq_int( errno, ENAMETOOLONG );
T_no_more_interactions();
}
/*
* Read a file using options but the server sends a DATA packet.
* The file is one byte long. No timeouts, packet loss, ...
* Tests:
* * The client uses windowsize and blksize option in the RRQ.
* * For the data transfer the client uses the RFC1350 option values
* because the server responded with a DATA packet.
* * The whole package sequence behaves as if only RFC1350 was used.
* * The first data packet contains a single byte and signals the end of the transfer.
* * The test reads a file from the file system in chunks of half block size.
*/
T_TEST_CASE_FIXTURE( read_file_DATA_instead_of_OACK, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
1, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += 1;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_DEFAULT_BLOCK_SIZE / 2, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file using RFC1350 but the server sends an OACK packet.
* Tests:
* * The code supports requests without options (RFC1350 only).
* * The server wrongly responds with an OACK which contains no options.
* * The client sends an error upon reception of an unexpected packet.
*/
T_TEST_CASE_FIXTURE( read_tiny_file_OACK_instead_of_DATA, &fixture_rfc1350 )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = {};
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_ILLEGAL,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
1, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, 0 );
T_eq_int( errno, EPROTO );
T_no_more_interactions();
}
/*
* Read a file from the server using the default options.
* The file is 18 and a half data packet long. No timeouts, packet loss, ...
* Tests:
* * The client uses the default options
* (windowsize = 8 and blocksize = 1456).
* * The server send the options in the same order as the client did
* send them.
* * The ninetenth data packet signals the end of transfer.
* * The test reads a file from the file system in chunks of 2000 bytes.
*/
T_TEST_CASE_FIXTURE( read_file_with_default_options, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int i;
int bytes_read;
uint16_t block_num = 0;
size_t pos_in_file = 0;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( TFTP_DEFAULT_WINDOW_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
while ( block_num < 16 ) {
for ( i = 0; i < TFTP_DEFAULT_WINDOW_SIZE; ++i ) {
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE;
}
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
}
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE;
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE;
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE / 2, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE / 2;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
2000, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file following exactly the scenario in RFC 7440.
* This test uses window size and block size options. There are lost packets.
* Tests:
* * The client uses of non-default options
* (windowsize = 4 and blocksize = 12).
* * Test the scenario included in RFC 7440.
* * When a packet from the server is lost (client receives DATA packet with
* a too high block number), the client sends an ACK for the last package
* received in the correct sequence.
* * The client ignores duplicated packets (with block numbers it has
* already processed).
* * The data of the file ends exactly at a window size border (i.e.
* after the window a single empty DATA packet is sent by the server).
* * The test reads a file from the file system in chunks of 10 bytes.
*/
T_TEST_CASE_FIXTURE( read_file_rfc7440_scenario, &fixture_small_opt_size )
{
tftp_test_context *ctx = T_fixture_context();
int i;
int bytes_read;
uint16_t block_num = 0;
size_t pos_in_file = 0;
const char options[] =
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( SMALL_WINDOW_SIZE ) "\0"
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( SMALL_BLOCK_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
SMALL_BLOCK_SIZE,
SMALL_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
for ( i = 0; i < SMALL_WINDOW_SIZE; ++i ) {
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
}
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 2, /* Error: One packet from the server has been lost */
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
for ( i = 0; i < SMALL_WINDOW_SIZE; ++i ) {
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
}
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 2, /* Error: One packet from the server has been lost */
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num, /* The packet is assumed to be lost/does not reach the server */
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num + 3, /* Error: One packet from the server has been lost */
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
block_num = 9; /* The ACK for DATA packet 10 did not reach the server */
pos_in_file = block_num * SMALL_BLOCK_SIZE;
for ( i = 0; i < SMALL_WINDOW_SIZE; ++i ) {
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
}
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
10, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file using windowsize = 4. All kinds of packet loss, out of order
* packets and duplicated packets occur.
* This test uses window size and block size options. It is a stress test
* for all kind of network problems which can appear during a transfer
* of a file with window size larger than 1.
* Tests:
* * The client uses non-default options (windowsize = 4 and blocksize = 12).
* * The first DATA packet of a window is lost.
* * The last DATA packet of a window is lost.
* * The middle DATA packets of a window is lost.
* * The first two DATA packets of a window are received in reverse order.
* * The middle two DATA packets of a window are received in reverse order.
* * The last two DATA packets of a window are received in reverse order.
* * The a DATA packet is received duplicated.
* * The an old DATA packet is received duplicated.
* * The a very old DATA packet is received duplicated.
* * The normal ACK of a window is not received by the server.
* * The server repeats a whole window (ensure the client sends an ACK
* packet despite of the repetition).
* * An ACK for an out-of-order packet is not received by the server.
* * Windows with errors appear consecutively without
* error free windows in between.
* * After the reception of the first two DATA packets of a window,
* a timeout occurs and the client must send an ACK.
* * File transfer ends exactly with the last packet of a window
* (the second last packet is full and the last one is empty).
* * The test reads a file from the file system in chunks 100 bytes.
*/
T_TEST_CASE_FIXTURE( read_file_windowsize_trouble, &fixture_small_opt_size )
{
tftp_test_context *ctx = T_fixture_context();
int i;
int bytes_read;
uint16_t block_num = 0;
size_t pos_in_file = 0;
int timeout = FIRST_TIMEOUT_MILLISECONDS;
const char options[] =
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( SMALL_WINDOW_SIZE ) "\0"
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( SMALL_BLOCK_SIZE );
/*
* A positive number is the number of a DATA packet received.
* A negative number is the number of an ACK packet send.
* A zero indicates a timeout when waiting for a DATA packet.
* Each line corresponds to a window.
*/
int16_t pkg_sequence[] = {
1, 1, 2, 3, 2, 1, 3, 4, -4, /* Duplicated DATA packets */
6, -4, 7, 8, /* DATA packet 5 lost */
6, 5, 7, -5, 4, 8, /* DATA packet 5 and 6 received in revers order;
reception of an very old packet: 4 */
7, 6, 8, -6, /* DATA packet 6 and 7 received in revers order;
DATA packet 9 not send or lost */
6, 7, 8, 9, -9, /* ACK packet 6 was not received by server */
10, 11, 12, 0, -12, /* DATA packet 13 lost */
13, 16, -13, /* DATA packets 14, 15 lost */
12, 13, 14, 15, -15, 16, 17, /* Reception of duplicated old packets 12 and
13 */
16, 17, 18, 19, -19, /* Normal sequence; ACK 19 not receive by server */
16, 17, 18, 19, -19, /* Normal sequence repeated;
ACK 19 not receive by server */
16, 19, -19, 18, 17, /* Sequence repeated but DATA packet 17 and 18
received after 19 and in revers order */
20, -20, 21, 22, 23, /* ACK 20 because the client assumes the server
did not get ACK 19 and restarted with 17 */
21, 22, 23, 24, -24, /* Normal sequence */
25, 27, -25, 26, 28, -26, /* The middle data packets 26, 27 are exchanged;
the client assumes DATA 26 being the start
of the next window and sends an ACK 26
upon reception of out-of-sequence DATA 28;
assume ACK 26 not received by server */
26, 27, 29, -27, 28, /* The last data packets are exchanged;
ACK 27 not received by server */
26, 27, 28, 29, -29, /* Normal sequence repeated from ACK 25 */
30, 31, 0, -31, /* The last two data packets are lost (timeout) */
32, 33, 34, /* Normal sequence; the last DATA packet (here missing) will
contain no data and ends the transfer at a window
boundary; a final ACK (here missing too) follows */
};
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
SMALL_BLOCK_SIZE,
SMALL_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
for ( i = 0; i < RTEMS_ARRAY_SIZE( pkg_sequence ); ++i ) {
if ( pkg_sequence[i] == 0 ) {
block_num = pkg_sequence[i];
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD, /* Timeout: No packet received within timeout period */
timeout
);
timeout = TIMEOUT_MILLISECONDS;
} else if ( pkg_sequence[i] > 0 ) {
block_num = pkg_sequence[i];
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
timeout,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
( block_num - 1 ) * SMALL_BLOCK_SIZE,
SMALL_BLOCK_SIZE, /* Number of bytes transferred */
get_file_content,
pkg_sequence[i] > 0 /* pkg_sequence[i] == 0 means timeout */
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
pos_in_file = block_num * SMALL_BLOCK_SIZE;
} else {
block_num = -pkg_sequence[i];
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
}
}
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
timeout,
SERV_PORT,
tftpfs_ipv4_loopback,
++block_num,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
true
);
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
100, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file to the server using an option to increase block size.
* The file is 2 DATA packet and 1 byte long. No timeouts, packet loss, ...
* Tests:
* * The client uses only the blksize option in WRQ and OACK.
* * The client uses a block size which is larger than the default size.
* * The server can change the block size value in the OACK.
* * The option name in the OACK can be upper or lower case.
* * First and second DATA packets are full.
* * The second DATA packet is not full and signals the end of the transfer.
* * The client handles an empty DATA packet correctly as
* end of file indicator.
* * The test writes the file to the file system in chunks of 333 bytes.
*/
T_TEST_CASE_FIXTURE( write_simple_file_large_blocks, &fixture_large_blocksize )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 1;
uint16_t block_size = 211;
const char options[] = "BLKsiZe" "\0" "211";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
LARGE_BLOCK_SIZE,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
block_size,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += block_size;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
block_size,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += block_size;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
1, /* Data bytes in this block */
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += 1;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
333, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file to the server using default options.
* The file is 23 data packet long. No timeouts, packet loss, ...
* Tests:
* * The client uses the default options
* (windowsize = 8 and blocksize = 1456).
* * The server sends the options in the same order the client
* did send them.
* * The 24th data packet signals the end of file transfer.
* * Client sends an empty data packet as end of file indicator.
* * The client handles files correctly which end exactly at
* a window border.
*/
T_TEST_CASE_FIXTURE(
write_simple_file_default_options,
&fixture_default_options
)
{
tftp_test_context *ctx = T_fixture_context();
int i;
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 1;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE "\0"
RTEMS_XSTRING( TFTP_DEFAULT_WINDOW_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
for ( i = 0; i < 23; ++i ) {
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
TFTP_DEFAULT_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_DEFAULT_BLOCK_SIZE;
if ( i % 8 == 7 ) {
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1,
true
);
} else {
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
}
}
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
333, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file following exactly the scenario from RFC 7440.
* This test uses window size and block size options. There are lost packets.
* Tests:
* * The client uses non-default options
* (windowsize = 4 and blocksize = 12).
* * Test the scenario included in RFC 7440.
* * The server sends the options in the inverse order the client
* did send them.
* * The data of the file ends exactly at a window size border (i.e.
* after the last window the server sends a single empty DATA packet).
* * The test writes a file to the file system in chunks of 10 bytes.
*/
T_TEST_CASE_FIXTURE( write_file_rfc7440_scenario, &fixture_small_opt_size )
{
tftp_test_context *ctx = T_fixture_context();
int i;
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 1;
const char options[] =
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( SMALL_WINDOW_SIZE ) "\0"
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( SMALL_BLOCK_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
SMALL_BLOCK_SIZE,
SMALL_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
for ( i = 0; i < 6; ++i ) {
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
SMALL_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
if ( i % 4 == 3 ) {
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1,
true
);
} else {
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
}
}
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
SMALL_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT,
SERV_PORT,
tftpfs_ipv4_loopback,
5,
true
);
block_num = 6;
pos_in_file = (block_num - 1) * SMALL_BLOCK_SIZE;
for ( i = 0; i < 7; ++i ) {
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
SMALL_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
if ( i % 4 == 3 ) {
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1,
true
);
} else {
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
}
}
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
SMALL_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS
);
block_num = 10;
pos_in_file = (block_num - 1) * SMALL_BLOCK_SIZE;
for ( i = 0; i < 4; ++i ) {
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
SMALL_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += SMALL_BLOCK_SIZE;
if ( i % 4 == 3 ) {
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num - 1,
true
);
} else {
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
}
}
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
0,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
10, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file using windowsize = 4. All kinds of packet loss, out of
* order packets and duplicated ACK packets appear.
* This test uses window size and block size options. It is a stress test
* for all kind of network problems which can appear during a transfer
* of a file with window size larger than 1.
* Tests:
* * The server repeats a whole window (timeout).
* * The client receives a duplicated ACK packet (directly in sequence).
* * The client receives a duplicated ACK (after sending a window).
* * The client receives an ACK with a block number which is not
* the end of the current window.
* * The client receives an very old ACK in the middle of a window.
* * The client receives an very old ACK at the end of a window.
* * The client receives an ACK for a not yet send DATA packet in the
* middle of a window (should be ignored or cause a error).
* * The client receives an ACK for a not yet send DATA packet at the
* end of a window (should be ignored or cause a error).
* * The client receives an ACK after sending a full window.
* * The client receives an ACK before all DATA packets of a
* window have been sent.
* * The client must repeat the first window completely (timeout).
* * The client must repeat the first window partially.
* * The client must repeat the last window completely (timeout).
* * The client must repeat the last window partially.
* * Windows with errors in between appear consecutively, without
* error free windows in between.
* * The test writes a file to the file system in chunks of block size.
*/
T_TEST_CASE_FIXTURE( write_file_windowsize_trouble, &fixture_small_opt_size )
{
tftp_test_context *ctx = T_fixture_context();
int i;
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 1;
int timeout = FIRST_TIMEOUT_MILLISECONDS;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( SMALL_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE"\0"
RTEMS_XSTRING( SMALL_WINDOW_SIZE );
/*
* A positive number is the number of an ACK packet received
* at the end of window.
* A 9999 indicates a timeout when waiting for an ACK packet.
* A zero indicates no ACK packet is received when checking for it.
* A positive number >= 10000 is the number+10000 of an ACK packet received
* while only checking for a packet.
* A negative number is the number of a DATA packet send
* at the end of a window.
* A negative number <= -10000 is the number-10000 of an *empty* DATA
* packet send.
* Each line corresponds to a window.
*/
int16_t pkg_sequence[] = {
-1, 0, -2, 0, -3, 0, -4, 9999, /* First window, trigger full repeat */
-1, 0, -2, 0, -3, 0, -4, 2, /* ACK at end of window;
first window must be partially repeated */
-3, 0, -4, 0, -5, 0, -6, 6, /* Normal sequence */
-7, 0, -8, 0, -9, 0, -10, 6, /* Duplicate ACK */
-7, 10006, /* Duplicate ACK; ACK before sending all packets of a window */
-7, 0, -8, 10008, /* ACK before sending all packets of a window;
ACK is not at the window end */
-9, 10007, 0, -10, 10013, 0, -11, 0, -12, 12, /* Reception of very old ACK;
Reception of future ACK (The
wrong "future" ACK must be
beyond the block size)
in the middle of a window */
-13, 0, -14, 0, -15, 0, -16, 11, 17, 16, /* Reception of very old ACK;
Reception of future ACK at the
end of a window */
-17, 0, -18, 0, -10019, 9999, /* Last window timeout, trigger full repeat */
-17, 0, -18, 0, -10019, 16, /* Last window, duplicated ACK */
-17, 0, -18, 10017, /* Last window, ACK before sending all packets */
-18, 0, -10019, 19 /* Last window partially repeated */
};
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
SMALL_BLOCK_SIZE,
SMALL_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
for ( i = 0; i < RTEMS_ARRAY_SIZE( pkg_sequence ); ++i ) {
if ( pkg_sequence[i] == 0 ) {
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
} else if ( pkg_sequence[i] == 9999 ) {
_Tftp_Add_interaction_recv_nothing(
TFTP_FIRST_FD,
timeout
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
} else if ( pkg_sequence[i] >= 10000 ) {
block_num = pkg_sequence[i] - 10000;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
DO_NOT_WAIT_FOR_ANY_TIMEOUT,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
} else if ( pkg_sequence[i] > 0 ) {
block_num = pkg_sequence[i];
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
timeout,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
} else if ( pkg_sequence[i] <= -10000 ) {
block_num = -pkg_sequence[i] - 10000;
pos_in_file = (block_num - 1) * SMALL_BLOCK_SIZE;
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
0, /* Number of bytes transferred */
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
} else {
block_num = -pkg_sequence[i];
pos_in_file = (block_num - 1) * SMALL_BLOCK_SIZE;
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num++,
pos_in_file,
SMALL_BLOCK_SIZE,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
timeout = FIRST_TIMEOUT_MILLISECONDS;
pos_in_file += SMALL_BLOCK_SIZE;
}
}
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
SMALL_BLOCK_SIZE, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file to the server where the server sends an OACK without options.
* The file is half a data packet long. No timeouts, packet loss, ...
* Tests:
* * The client processes an OACK without any options in it correctly.
* * The client uses the RFC1350 block size because the server does
* not agree to the options send.
* * The first data packet is half full and signals the end of the transfer.
* * The test reads a file from the file system in chunks of double block size.
*/
T_TEST_CASE_FIXTURE( write_tiny_file_OACK_no_options, &fixture_large_blocksize )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 1;
const char options[] = {};
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
LARGE_BLOCK_SIZE,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 2;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
2 * TFTP_RFC1350_BLOCK_SIZE, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file and when the server responses with an ERROR to options
* fallback to no options.
* The file is one byte long. No timeouts, packet loss, ...
* Tests:
* * The client uses windowsize and blksize option in the first RRQ.
* * Upon reception of an ERROR packet from the server, the client
* re-tries opening the session using an RRQ without options.
* * The server accepts the RRQ without options by sending a DATA packet.
* * The second RRQ is sent to the TFTP server port 69 and not to the
* port from which the first ERROR packet came from.
* * The first data packet contains a single byte and signals the
* end of the transfer.
*/
T_TEST_CASE_FIXTURE( read_file_fallback_to_no_options,
&fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
uint16_t block_num = 1;
size_t pos_in_file = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
TFTP_ERROR_CODE_OPTION_NEGO,
"Don't like options",
true
);
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_data(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num,
pos_in_file,
1, /* Number of bytes transferred */
get_file_content,
true
);
pos_in_file += 1;
_Tftp_Add_interaction_send_ack(
TFTP_FIRST_FD,
block_num++,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_DEFAULT_BLOCK_SIZE / 2, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( bytes_read, pos_in_file );
T_no_more_interactions();
}
/*
* Read a file from the server but the server responds with
* an ERROR to all RRQ with and without options.
* The file is one byte long. No timeouts, packet loss, ...
* Tests:
* * The client uses windowsize and blksize option in the first RRQ.
* * Upon reception of an ERROR packet from the server, the client
* re-tries opening a session using an RRQ without options.
* * The second RRQ is sent to the TFTP server port 69 and not to the
* port from which the first ERROR packet came from.
* * The server does not accept the RRQ without options
* and responds again with an ERROR packet.
* * The client ends all attempts to create a connection after
* receiving an ERROR packet to an RRQ without options.
* * The client signals the error to the user.
*/
T_TEST_CASE_FIXTURE( read_file_useless_fallback_to_no_options,
&fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
TFTP_ERROR_CODE_ILLEGAL,
"Don't like options",
true
);
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
TFTP_ERROR_CODE_ILLEGAL,
"Go away",
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
TFTP_DEFAULT_BLOCK_SIZE / 2, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EINVAL );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Write a file to the server and the server responses with an ACK packet.
* The file is half a data packet long. No timeouts, packet loss, ...
* Tests:
* * The client uses windowsize and blksize option in the WRQ.
* * The client uses the RFC1350 option values for the data transfer
* because the server responded with an ACK packet.
* * The whole package sequence behaves as if only RFC1350 was used.
* * The first data packet is half filled and signals the end of the
* transfer.
*/
T_TEST_CASE_FIXTURE( write_file_ACK_instead_of_OACK, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 2;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
2 * TFTP_RFC1350_BLOCK_SIZE, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* Write a file and when the server responses with an ERROR to options
* fallback to no options.
* The file is half a data packet long. No timeouts, packet loss, ...
* Tests:
* * The client uses windowsize and blksize options in the first WRQ.
* * Upon reception of an ERROR from the server, the client re-tries
* opening a session using a WRQ without options.
* * The second WRQ is sent to the TFTP server port 69 and not to the
* port from which the first ERROR packet came from.
* * The server accepts the WRQ without options by sending an ACK packet.
* * The first data packet is half filled and signals the end of the transfer.
*/
T_TEST_CASE_FIXTURE( write_file_fallback_to_no_options,
&fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_written;
size_t pos_in_file = 0;
uint16_t block_num = 0;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_error(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
TFTP_ERROR_CODE_ILLEGAL,
"Don't like options",
true
);
_Tftp_Add_interaction_send_wrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
NO_BLOCK_SIZE_OPTION,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_send_data(
TFTP_FIRST_FD,
block_num,
pos_in_file,
TFTP_RFC1350_BLOCK_SIZE / 2,
get_file_content,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
pos_in_file += TFTP_RFC1350_BLOCK_SIZE / 2;
_Tftp_Add_interaction_recv_ack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
block_num++,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_written = write_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
pos_in_file, /* Size of file */
2 * TFTP_RFC1350_BLOCK_SIZE, /* Bytes written per call to write() */
&ctx->fd0
);
T_eq_int( bytes_written, pos_in_file );
T_no_more_interactions();
}
/*
* The server sends a malformed OACK: The final 0 byte is missing.
*/
T_TEST_CASE_FIXTURE( OACK_without_null, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = { 'b', 'l', 'k', 's', 'i', 'z', 'e', '\0', '1', '2' };
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The value of the option is missing.
*/
T_TEST_CASE_FIXTURE( OACK_without_option_value, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_BLKSIZE;
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The option is unknown.
*/
T_TEST_CASE_FIXTURE( OACK_with_unknown_option, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] =
"shoesize" "\0"
RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The value of the option is
* not a number.
*/
T_TEST_CASE_FIXTURE( OACK_malformed_option_value, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_BLKSIZE "\0" "abc";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The value of the option is empty.
*/
T_TEST_CASE_FIXTURE( OACK_with_empty_option_value, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_BLKSIZE "\0";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The option name is empty.
*/
T_TEST_CASE_FIXTURE( OACK_with_empty_option_name, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = "\0" RTEMS_XSTRING( TFTP_DEFAULT_BLOCK_SIZE );
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The block size option value
* is too small.
*/
T_TEST_CASE_FIXTURE( OACK_blocksize_too_small, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_BLKSIZE "\0" "7";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The block size option value
* is too large.
*/
T_TEST_CASE_FIXTURE( OACK_blocksize_too_large, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_BLKSIZE "\0" "1457";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The windowsize option value
* is too small.
*/
T_TEST_CASE_FIXTURE( OACK_windowsize_too_small, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_WINDOWSIZE "\0" "0";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: The windowsize option is too large.
*/
T_TEST_CASE_FIXTURE( OACK_windowsize_too_large, &fixture_default_options )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] = TFTP_OPTION_WINDOWSIZE "\0" "9";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
TFTP_DEFAULT_BLOCK_SIZE,
TFTP_DEFAULT_WINDOW_SIZE,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
/*
* Server sends a malformed OACK packet: There is a known but surplus option.
*/
T_TEST_CASE_FIXTURE( OACK_with_surplus_option, &fixture_large_blocksize )
{
tftp_test_context *ctx = T_fixture_context();
int bytes_read;
const char options[] =
TFTP_OPTION_BLKSIZE "\0"
RTEMS_XSTRING( LARGE_BLOCK_SIZE ) "\0"
TFTP_OPTION_WINDOWSIZE "\0"
"1";
/* T_set_verbosity( T_VERBOSE ); */
_Tftp_Add_interaction_socket( AF_INET, SOCK_DGRAM, 0, TFTP_FIRST_FD );
_Tftp_Add_interaction_send_rrq(
TFTP_FIRST_FD,
tftpfs_file,
TFTP_STD_PORT,
tftpfs_ipv4_loopback,
LARGE_BLOCK_SIZE,
NO_WINDOW_SIZE_OPTION,
true
);
_Tftp_Add_interaction_recv_oack(
TFTP_FIRST_FD,
FIRST_TIMEOUT_MILLISECONDS,
SERV_PORT,
tftpfs_ipv4_loopback,
options,
sizeof( options ),
true
);
_Tftp_Add_interaction_send_error(
TFTP_FIRST_FD,
TFTP_ERROR_CODE_OPTION_NEGO,
SERV_PORT,
tftpfs_ipv4_loopback,
true
);
_Tftp_Add_interaction_close( TFTP_FIRST_FD, 0 );
bytes_read = read_tftp_file(
create_tftpfs_path( tftpfs_ipv4_loopback, tftpfs_file ),
LARGE_BLOCK_SIZE, /* Bytes read per call to read() */
SIZE_MAX,
&ctx->fd0
);
T_eq_int( errno, EPROTO );
T_eq_int( bytes_read, 0 );
T_no_more_interactions();
}
const char rtems_test_name[] = "TFTPFS";
static void Init( rtems_task_argument argument )
{
rtems_test_run( argument, TEST_STATE );
}
/*
* RTEMS configuration for tftp
*/
#define CONFIGURE_FILESYSTEM_TFTPFS
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4
/*
* Simple RTEMS configuration
*/
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT
#define CONFIGURE_INIT
#include <rtems/confdefs.h>