sw_result
sw_ipv4_address_init_from_this_host(
sw_ipv4_address * self)
{
#if defined(__VXWORKS__)
sw_int8 current_addr[INET_ADDR_LEN];
if (ifAddrGet(sysEnetNameGet(), current_addr) != OK)
{
sw_debug(SW_LOG_ERROR, "sw_ipv4_address_init_from_this_host", "ifAddrGet() failed\n");
return SW_E_INIT;
}
self->m_addr = inet_addr(current_addr);
#else
struct sockaddr_in addr;
sw_result err;
sw_sockdesc_t desc;
sw_socklen_t len;
desc = socket(AF_INET, SOCK_DGRAM, 0);
sw_check(desc != SW_INVALID_SOCKET, exit, err = SW_E_UNKNOWN);
sw_memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr("192.168.1.1");
addr.sin_port = htons(5555);
err = connect(desc, (struct sockaddr*) &addr, sizeof(addr));
sw_check_okay(err, exit);
sw_memset(&addr, 0, sizeof(addr));
len = sizeof(addr);
err = getsockname(desc, (struct sockaddr*) &addr, &len);
sw_check_okay(err, exit);
self->m_addr = addr.sin_addr.s_addr;
#endif
exit:
if (desc != SW_INVALID_SOCKET)
{
sw_close_socket(desc);
}
if (err != SW_OKAY)
{
err = sw_ipv4_address_init_from_address(self, sw_ipv4_address_loopback());
}
return err;
}
/**
* @brief the function to encode and decode a buffer using rc4 algorithm.
* The output buffer has to be atleast the same length as the input buffer.
* Expect segmentation faults if not.
*
* @param input_buf: the input buffer that needs to be converted
* @param input_len: the length of the input buffer
* @param output_buf: the output buffer into which the data needs to be filled.
* The size has to be atleast the same size as the input buffer.
* @param output_len: the length of the converted data
*
* @return 0 if successful. No other return values are expected for now
**/
int otzone_rc4_algorithm(char *input_buf, int input_len, char *output_buf,
int *output_len)
{
char *key_seq = ")*(&$%^!@#~`+="; /* key for encryption & decryption*/
unsigned char key_seq_len = 14; /* length of the key_seq variable*/
unsigned char enc_array[MODULO_VALUE];
unsigned short loop_cntr=0,index=0;
sw_memset(enc_array,INITIALIZATION_CONST,(MODULO_VALUE-1)*sizeof(unsigned char));
for(loop_cntr=0; loop_cntr<MODULO_VALUE; loop_cntr++) {
index = (index+enc_array[loop_cntr]+
(unsigned char)(key_seq[loop_cntr%key_seq_len]))%MODULO_VALUE;
if(enc_array[loop_cntr] == INITIALIZATION_CONST) {
enc_array[loop_cntr] = loop_cntr;
}
if(enc_array[index] == INITIALIZATION_CONST) {
enc_array[index] = loop_cntr;
}
SWAP(enc_array[loop_cntr],enc_array[index]);
}
loop_cntr = 0;
index = 0;
for(*output_len = 0; *output_len<input_len; (*output_len)++) {
loop_cntr = (loop_cntr+1)%MODULO_VALUE;
index = (index+enc_array[loop_cntr])%MODULO_VALUE;
SWAP(enc_array[loop_cntr],enc_array[index]);
output_buf[*output_len] = input_buf[*output_len] ^
(enc_array[(enc_array[loop_cntr]+enc_array[index])%MODULO_VALUE]);
}
return(0);
}
int echo_task_init(sa_config_t *psa_config)
{
sw_memset(psa_config, 0x0, sizeof(sa_config_t));
psa_config->service_uuid = OTZ_SVC_ECHO;
sw_strcpy(psa_config->service_name, "echo");
psa_config->stack_size = TASK_STACK_SIZE;
psa_config->data = (void*)sw_malloc(sizeof(struct echo_global));
if(!psa_config->data) {
sw_printf("SW: echo task init: allocation of local storage data failed\n");
return OTZ_ENOMEM;
}
psa_config->entry_point = &echo_task;
psa_config->process = (u32)&process_otz_echo_svc;
sw_memset(psa_config->data, 0, sizeof(struct echo_global));
return OTZ_OK;
}
/*
UDP/mcast implementation
*/
static sw_result
sw_socket_udp_connect(
sw_socket self,
sw_ipv4_address address,
sw_port port)
{
sw_memset(&self->m_dest_addr, 0, sizeof(self->m_dest_addr));
self->m_dest_addr.sin_family = AF_INET;
self->m_dest_addr.sin_addr.s_addr = sw_ipv4_address_saddr(address);
self->m_dest_addr.sin_port = htons(port);
self->m_connected = SW_TRUE;
return SW_OKAY;
}
/**
* @brief Dispatcher task init
*
* This function initializes dispatcher task parameters and its get called
* before the task creation
*
* @param psa_config: Configuration parameter for the task
*
* @return otz_return_t:
* OTZ_OK \n
* OTZ_FAIL \n
*/
int dispatch_task_init(sa_config_t *psa_config)
{
sw_memset(psa_config, 0x0, sizeof(sa_config_t));
psa_config->service_uuid = OTZ_SVC_GLOBAL;
sw_strcpy(psa_config->service_name, "dispatcher");
psa_config->stack_size = TASK_STACK_SIZE;
psa_config->entry_point = (u32) &dispatch_task;
psa_config->data = (void *)sw_malloc_private(COMMON_HEAP_ID,
sizeof(struct dispatch_global));
if(!psa_config->data) {
sw_printf("SW: dispatch task init: allocation of local storage data failed\n");
return OTZ_ENOMEM;
}
sw_memset(psa_config->data, 0 , sizeof(struct dispatch_global));
g_dispatch_data = psa_config->data;
/*
INIT_LIST_HEAD(
&((struct dispatch_global*)psa_config->data)->pending_list);
*/
return OTZ_OK;
}
/*TEE_Result TEE_CheckMemoryAccessRights( u32 accessFlags, void* buffer, size_t size) {
return TEE_SUCCESS;
}
void TEE_SetInstanceData( void* instanceData ) {
Data = instanceData;
}
void* TEE_GetInstanceData( void ) {
return Data;
}
*/
void* TEE_Malloc( size_t size, u32 hint ) {
void* buffer;
if((buffer = malloc(size))==NULL) {
sw_printf("Memory Allocation Failed\n");
return NULL;
}
if(hint == 0x0) {
sw_memset(buffer, 0, size);
}
/*else {
hint in the range [0x00000001, 0xFFFFFFFF] can be used in future versions.
}*/
return buffer;
}
sw_result
sw_corby_channel_init(
sw_corby_channel * self,
struct _sw_corby_orb * orb,
sw_socket socket,
sw_socket_options options,
sw_size_t bufsize)
{
sw_result err;
*self = (sw_corby_channel) sw_malloc(sizeof(struct _sw_corby_channel));
err = sw_translate_error(*self, SW_E_MEM);
sw_check_okay_log(err, exit);
sw_memset(*self, 0, sizeof(struct _sw_corby_channel));
if (options)
{
err = sw_socket_set_options(socket, options);
sw_check_okay(err, exit);
}
err = sw_ipv4_address_init(&(*self)->m_from);
sw_check_okay(err, exit);
(*self)->m_orb = orb;
(*self)->m_socket = socket;
(*self)->m_refs = 1;
(*self)->m_state = Waiting;
err = sw_corby_message_init(&(*self)->m_message);
sw_check_okay(err, exit);
err = sw_corby_buffer_init_with_size(&(*self)->m_send_buffer, (bufsize) ? bufsize : SW_CORBY_CHANNEL_DEFAULT_BUFFER_SIZE);
sw_check_okay(err, exit);
err = sw_corby_buffer_init_with_size(&(*self)->m_read_buffer, (bufsize) ? bufsize : SW_CORBY_CHANNEL_DEFAULT_BUFFER_SIZE);
sw_check_okay(err, exit);
exit:
if (err && *self)
{
sw_corby_channel_fina(*self);
}
return err;
}
sw_result
sw_socket_options_init(
sw_socket_options * options)
{
sw_result err = SW_OKAY;
*options = (sw_socket_options) sw_malloc(sizeof(struct _sw_socket_options));
err = sw_translate_error(*options, SW_E_MEM);
sw_check_okay_log(err, exit);
sw_memset(*options, 0, sizeof(struct _sw_socket_options));
exit:
return err;
}
/*
TCP implementation
*/
static sw_result
sw_socket_tcp_connect(
sw_socket self,
sw_ipv4_address address,
sw_port port)
{
sw_int8 host[16];
sw_socklen_t len;
int nodelay = 1;
struct linger l;
int res;
sw_result err;
sw_debug(SW_LOG_VERBOSE, "sw_socket_tcp_connect() : host = %s, port = %d\n", sw_ipv4_address_name(address, host, 16), port);
sw_memset(&self->m_dest_addr, 0, sizeof(self->m_dest_addr));
self->m_dest_addr.sin_family = AF_INET;
self->m_dest_addr.sin_addr.s_addr = sw_ipv4_address_saddr(address);
self->m_dest_addr.sin_port = htons(port);
res = connect(self->m_desc, (struct sockaddr*) &self->m_dest_addr, sizeof(self->m_dest_addr));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
len = sizeof(self->m_addr);
res = getsockname(self->m_desc, (struct sockaddr*) &self->m_addr, &len);
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
self->m_connected = SW_TRUE;
res = setsockopt(self->m_desc, IPPROTO_TCP, TCP_NODELAY, (char*) &nodelay, sizeof(nodelay));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
l.l_onoff = 0;
l.l_linger = 0;
res = setsockopt(self->m_desc, SOL_SOCKET, SO_LINGER, (char*) &l, sizeof(l));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
exit:
return err;
}
static sw_result
sw_socket_udp_sendto(
sw_socket self,
sw_octets buffer,
sw_size_t len,
sw_size_t * bytesWritten,
sw_ipv4_address to,
sw_port port)
{
struct sockaddr_in addr;
sw_memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = sw_ipv4_address_saddr(to);
addr.sin_port = htons(port);
return sw_socket_udp_really_sendto(self, buffer, len, bytesWritten, (struct sockaddr*) &addr, sizeof(addr));
}
sw_result
sw_socket_bind(
sw_socket self,
sw_ipv4_address address,
sw_port port)
{
sw_int8 host[16];
sw_socklen_t len;
int res;
sw_result err = SW_OKAY;
sw_debug(SW_LOG_VERBOSE, "sw_socket_bind() : fd = %d, addr = %s, port = %d\n", self->m_desc, sw_ipv4_address_name(address, host, 16), port);
/*
now bind
*/
sw_memset(&self->m_addr, 0, sizeof(self->m_addr));
self->m_addr.sin_family = AF_INET;
/*
if they haven't chosen a network interface, choose one for them
*/
self->m_addr.sin_addr.s_addr = sw_ipv4_address_saddr(address);
self->m_addr.sin_port = htons(port);
len = sizeof(self->m_addr);
res = bind(self->m_desc, (struct sockaddr*) &self->m_addr, len);
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
/*
now get our port
*/
res = getsockname(self->m_desc, (struct sockaddr*) &self->m_addr, &len);
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
exit:
return err;
}
sw_result
sw_socket_accept(
sw_socket self,
sw_socket * socket)
{
struct sockaddr_in addr;
sw_sockdesc_t desc;
sw_socklen_t len;
int nodelay = 1;
struct linger l;
int res;
sw_result err;
len = sizeof(addr);
sw_memset(&addr, 0, sizeof(addr));
desc = accept(self->m_desc, (struct sockaddr*) &addr, &len);
err = sw_translate_error(desc != SW_INVALID_SOCKET, sw_socket_errno());
sw_check_okay(err, exit);
res = setsockopt(desc, IPPROTO_TCP, TCP_NODELAY, (char*) &nodelay, sizeof(nodelay));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
l.l_onoff = 0;
l.l_linger = 0;
res = setsockopt(desc, SOL_SOCKET, SO_LINGER, (char*) &l, sizeof(l));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
err = sw_tcp_socket_init_with_desc(socket, desc);
sw_check_okay(err, exit);
exit:
return err;
}
sw_result
sw_socket_join_multicast_group(
sw_socket self,
sw_ipv4_address local_address,
sw_ipv4_address multicast_address,
sw_uint32 ttl)
{
struct in_addr addr;
struct ip_mreq mreq;
#if defined(__sun) || defined(__VXWORKS__) || defined(__NetBSD__) || defined(__OpenBSD__)
sw_uint8 real_ttl = (sw_uint8) ttl;
#else
sw_uint32 real_ttl = ttl;
#endif
int res;
sw_result err;
/*
initialize the group membership
*/
sw_memset(&addr, 0, sizeof(addr));
addr.s_addr = sw_ipv4_address_saddr(local_address);
sw_memset(&mreq, 0, sizeof(mreq));
#if defined(__VXWORKS__)
/*
VxWorks doesn't like it if we try and use INADDR_ANY for use in
setting up multicast sockets.
So we please it.
*/
if (sw_ipv4_address_is_any(local_address))
{
sw_ipv4_address current_address;
err = sw_ipv4_address_init_from_this_host(¤t_address);
sw_check_okay(err, exit);
mreq.imr_interface.s_addr = sw_ipv4_address_saddr(current_address);
}
else
{
mreq.imr_interface = addr;
}
#else
mreq.imr_interface = addr;
#endif
mreq.imr_multiaddr.s_addr = sw_ipv4_address_saddr(multicast_address);
res = setsockopt(self->m_desc, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*) &mreq, sizeof(mreq));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
res = setsockopt(self->m_desc, IPPROTO_IP, IP_MULTICAST_IF, (char*) &addr, sizeof(addr));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
res = setsockopt(self->m_desc, IPPROTO_IP, IP_TTL, (char*) &ttl, sizeof(ttl));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
res = setsockopt(self->m_desc, IPPROTO_IP, IP_MULTICAST_TTL, (char*) &real_ttl, sizeof(real_ttl));
err = sw_translate_error(res == 0, sw_socket_errno());
sw_check_okay_log(err, exit);
exit:
return err;
}
/**
* @brief
*
* @param buffer
* @param x
* @param size
*/
void TEE_MemFill( void* buffer, u32 x, u32 size) {
sw_memset(buffer, x, size);
}
/**
* @brief
* Function to check whether a given file name exists in the file system
* and if so retrieve the corresponding short file name directory entry
* @param fname
* Pointer to the start of the file name which needs to be searched
* @param entry
* Pointer to a pointer of the directory entry structure in which the
* short file name directory entry content is to be stored
* @param strt
* Pointer to the start of the region where the file/directory needs
* to be searched
* @param strt_clus
* Starting cluster of the directory in which the file is assumed
* to be present
* @param is_lfn
* Boolean value which indicates whether the file is short or long file
* @return
* true: if the file/dir is present
* false:if it is not present in the respected path
*/
bool get_dir_entry(char *fname,dir_entry **entry,u8 *strt,
u32 strt_clus,bool is_lfn)
{
u8 *dir_strt = strt;
dir_entry *dir_ptr;
u8 chk_sum;
bool file_found = false;
int i = 0;
int tmp_cnt = 0;
int lfn_len = 0;
char temp_lfn[LONG_FILE_NAME_LEN];
sw_memset(temp_lfn,SPACE_VAL,LONG_FILE_NAME_LEN);
u32 next_clus = strt_clus;
while(!((next_clus == END_OF_CLUSTER) && (i == MAX_DIR_ENTRY_CNT + 2) &&
next_clus != END_OF_ROOT_CLUSTER)){
if((i - MAX_DIR_ENTRY_CNT == 1) && (next_clus != END_OF_CLUSTER) &&
next_clus != END_OF_ROOT_CLUSTER){
next_clus = get_fat_table_entry(next_clus);
if(next_clus == END_OF_CLUSTER ||
next_clus == END_OF_ROOT_CLUSTER)
break;
dir_strt = cluster_to_memory_addr(next_clus);
if(next_clus != END_OF_CLUSTER && next_clus !=
END_OF_ROOT_CLUSTER)
i = 0;
}
if(is_lfn){
if(*(dir_strt + ATTR_OFF) == ATTR_LONG_FNAME){
lfn_len = get_long_file_name(temp_lfn,&dir_strt,&tmp_cnt);
if(sw_memcmp(temp_lfn,fname,lfn_len) == 0)
file_found = true;
}
}
else{
if(sw_memcmp(fname,dir_strt,SHRT_FILE_NAME_LEN) == 0){
file_found = true;
}
}
if(file_found)
break;
dir_strt += DIR_ENTRY_LEN;
//TODO
if(tmp_cnt != 0)
i += tmp_cnt;
else
i++;
//i= (tmp_cnt != 0) ? i += tmp_cnt : i++;
tmp_cnt = 0;
}
if(file_found){
if(entry != NULL){
dir_ptr = (dir_entry*)sw_malloc(sizeof(dir_entry));
sw_memcpy(dir_ptr,dir_strt,DIR_ENTRY_LEN);
*entry = dir_ptr;
dir_file_offset = dir_strt;
}
return true;
}
else
return false;
}
/**
* @brief
* Function to open a specific file mentioned in the path
* based on the incoming modes
* @param file_path
* Pointer to the location of the file path string
* @param flags
* Flags indicating the modes in which the file is to be opened
*
* @return Non-zero:File descriptor of the opened file
Zero :File open is unsuccessful
*/
int file_open(const char *file_path,int flags)
{
const char *path = file_path;
const char *temp_path,*delim_strt;
char shrt_file_name[SHRT_FILE_NAME_LEN];
char long_file_name[LONG_FILE_NAME_LEN];
int len = 0,fl_des = 0,crt_flag,i;
int delim_cnt = 0;
int mode;
int extn_len_cnt = 0;
int seq_num = 1;
bool is_file_found;
dir_entry *entry = NULL;
file_info *info;
u8 *pwd = root_directory;
u32 strt_cluster = rt_dir_strt_clus;
bool is_long_file_name = false;
sw_memset(long_file_name,SPACE_VAL,LONG_FILE_NAME_LEN);
delim_cnt = find_depth(file_path);
path = file_path;
for(i=0;i<delim_cnt;i++){
if(*path == DELIMITER){
delim_strt = path;
path++;
}
while((*path != EXTN_DELIMITER) && (*path != '\0')
&& (*path != DELIMITER) && (len < LONG_FILE_NAME_LEN)){
long_file_name[len] = *path;
path++;
len++;
}
temp_path = path;
if(*temp_path == EXTN_DELIMITER){
temp_path++;
while(*temp_path != DELIMITER && *temp_path != '\0'){
extn_len_cnt++;
temp_path++;
}
}
if(len > FILE_NAME_SHRT_LEN || extn_len_cnt > FILE_NAME_EXTN_LEN)
is_long_file_name = true;
if(is_long_file_name){
path = delim_strt;
len = 0;
if(*path == DELIMITER)
path++;
while(len < LONG_FILE_NAME_LEN && *path != '\0'
&& *path != DELIMITER){
long_file_name[len] = *path;
path++;
len++;
}
long_file_name[len] = '\0';
if(entry){
sw_free(entry);
entry = NULL;
}
is_file_found = get_dir_entry(long_file_name,&entry,
pwd,strt_cluster,true);
}
else{
len = FILE_NAME_SHRT_LEN;
while(len < SHRT_FILE_NAME_LEN && *path != '\0'
&& *path != DELIMITER){
if(*path == EXTN_DELIMITER)
path++;
long_file_name[len] = *path;
path++;
len++;
}
convert_to_uppercase(long_file_name);
if(entry){
sw_free(entry);
entry = NULL;
}
is_file_found = get_dir_entry(long_file_name,&entry,
pwd,strt_cluster,false);
}
if((is_file_found) & (i != delim_cnt - 1)){
strt_cluster = (entry->strt_clus_hword)<<16 |
(entry->strt_clus_lword);
pwd = cluster_to_memory_addr(strt_cluster);
len = 0;
extn_len_cnt = 0;
sw_memset(shrt_file_name,SPACE_VAL,SHRT_FILE_NAME_LEN);
sw_memset(long_file_name,SPACE_VAL,LONG_FILE_NAME_LEN);
is_long_file_name = false;
}
}
if(is_file_found){
if(flags & FILE_WRITE){
if(chk_file_lock(file_path) == -1)
flags = FILE_READ;
if(entry->attr & ATTR_READ){
sw_printf("Cannot open the file in write mode\n");
return -1;
}
}
info = (file_info*)sw_malloc(sizeof(file_info));
fl_des = retrieve_file_info(info,entry,flags,
dir_file_offset,file_path);
}
else{
if((flags & FILE_CREATE_NEW) || (flags & FILE_CREATE_ALWAYS)
|| (flags & FILE_WRITE)){
if(is_long_file_name){
get_short_file_name(long_file_name,shrt_file_name,
(char)seq_num);
if(get_dir_entry(shrt_file_name,NULL,
pwd,strt_cluster,false) == true){
while(get_dir_entry(shrt_file_name,NULL,
pwd,strt_cluster,false)){
seq_num++;
get_short_file_name(long_file_name,
shrt_file_name,'seq_num');
}
}
convert_to_uppercase(shrt_file_name);
crt_flag = create_file(long_file_name,
shrt_file_name,strt_cluster,&entry);
}
else
crt_flag = create_file(NULL,long_file_name,strt_cluster,&entry);
if(crt_flag == 0)
sw_printf("File creation success\n");
info = (file_info*)sw_malloc(sizeof(file_info));
fl_des = retrieve_file_info(info,entry,flags,
dir_file_offset,file_path);
}
else
return -1;
}
return fl_des;
}