/* Open a DS9490 -- low level code (to allow for repeats) */
static GOOD_OR_BAD DS9490_redetect_low(struct connection_in * in)
{
// discover devices
libusb_device **device_list;
int n_devices = libusb_get_device_list( Globals.luc, &device_list) ;
int i_device ;
if ( n_devices < 1 ) {
LEVEL_CONNECT("Could not find a list of USB devices");
if ( n_devices<0 ) {
LEVEL_DEBUG("<%s>",libusb_error_name(n_devices));
}
return gbBAD;
}
for ( i_device = 0 ; i_device < n_devices ; ++i_device ) {
libusb_device * current = device_list[i_device] ;
if ( GOOD( USB_match( current ) ) ) {
// try to open the DS9490
if ( BAD(DS9490_open_and_name( current, in )) ) {
LEVEL_CONNECT("Cannot open USB bus master, Find next...");
continue;
}
if ( GOOD( DS9490_redetect_match( in ) ) ) {
break ;
}
DS9490_close(in);
}
}
libusb_free_device_list(device_list, 1);
return (in->master.usb.lusb_handle!=NULL) ? gbGOOD : gbBAD ;
}
/* All general stored data will be assigned to this "head" channel */
static GOOD_OR_BAD HeadChannel(struct connection_in *head)
{
/* Intentionally put the wrong index */
head->master.i2c.index = 1;
if ( BAD(DS2482_channel_select(head)) ) { /* Couldn't switch */
head->master.i2c.index = 0; /* restore correct value */
LEVEL_CONNECT("DS2482-100 (Single channel)");
if ( GOOD(DS2483_test(head->pown->file_descriptor)) ) {
head->master.i2c.type = ds2483 ;
} else {
head->master.i2c.type = ds2482_100 ;
}
return gbGOOD; /* happy as DS2482-100 */
}
// It's a DS2482-800 (8 channels) to set up other 7 with this one as "head"
LEVEL_CONNECT("DS2482-800 (Eight channels)");
/* Must be a DS2482-800 */
head->master.i2c.channels = 8;
head->master.i2c.type = ds2482_800 ;
head->Adapter = adapter_DS2482_800;
return CreateChannels(head);
}
/* Open a DS9490 -- low level code (to allow for repeats) */
static GOOD_OR_BAD DS9490_detect_all_adapters(struct port_in * pin_first)
{
// discover devices
struct port_in * pin = pin_first ;
libusb_device **device_list;
int n_devices = libusb_get_device_list( Globals.luc, &device_list) ;
int i_device ;
if ( n_devices < 1 ) {
LEVEL_CONNECT("Could not find a list of USB devices");
if ( n_devices<0 ) {
LEVEL_DEBUG("<%s>",libusb_error_name(n_devices));
}
return gbBAD ;
}
for ( i_device = 0 ; i_device < n_devices ; ++i_device ) {
libusb_device * current = device_list[i_device] ;
if ( GOOD( USB_match( current ) ) ) {
struct connection_in * in = pin->first ;
if ( BAD(DS9490_open_and_name( current, in)) ) {
LEVEL_DEBUG("Cannot open USB device %.d:%.d", libusb_get_device_address(current), libusb_get_bus_number(current) );
continue ;
} else if ( BAD(DS9490_ID_this_master(in)) ) {
DS9490_close(in) ;
LEVEL_DEBUG("Cannot access USB device %.d:%.d", libusb_get_device_address(current), libusb_get_bus_number(current) );
continue;
} else{
pin = NewPort(NULL) ; // no reason to copy anything
if ( pin == NULL ) {
return gbGOOD ;
}
// set up the new connection for the next adapter
DS9490_setroutines(in);
}
}
}
libusb_free_device_list(device_list, 1);
if ( pin == pin_first ) {
LEVEL_CONNECT("No USB DS9490 bus masters used");
return gbBAD;
}
// Remove the extra connection
RemovePort(pin);
return gbGOOD ;
}
/* Open a DS9490 -- low level code (to allow for repeats) */
static GOOD_OR_BAD DS9490_detect_specific_adapter(int bus_nr, int dev_nr, struct connection_in * in)
{
// discover devices
libusb_device **device_list;
int n_devices = libusb_get_device_list( Globals.luc, &device_list) ;
int i_device ;
if ( n_devices < 1 ) {
LEVEL_CONNECT("Could not find a list of USB devices");
if ( n_devices<0 ) {
LEVEL_DEBUG("<%s>",libusb_error_name(n_devices));
}
return gbBAD ;
}
// Mark this connection as taking only this address pair. Important for reconnections.
in->master.usb.specific_usb_address = 1 ;
for ( i_device = 0 ; i_device < n_devices ; ++i_device ) {
libusb_device * current = device_list[i_device] ;
if ( GOOD( USB_match( current ) ) ) {
if ( libusb_get_bus_number(current) != bus_nr ) {
continue ;
}
if ( libusb_get_device_address(current) != dev_nr ) {
continue ;
}
if ( BAD(DS9490_open_and_name( current, in)) ) {
LEVEL_DEBUG("Cannot open USB device %.d:%.d", libusb_get_device_address(current), libusb_get_bus_number(current) );
break ;
} else if ( BAD(DS9490_ID_this_master(in)) ) {
DS9490_close(in) ;
LEVEL_DEBUG("Cannot access USB device %.d:%.d", libusb_get_device_address(current), libusb_get_bus_number(current) );
break ;
} else{
libusb_free_device_list(device_list, 1);
return gbGOOD ;
}
}
}
libusb_free_device_list(device_list, 1);
LEVEL_CONNECT("No USB DS9490 bus master found matching %d:%d", bus_nr,dev_nr);
return gbBAD;
}
// Called in a thread
static void * OW_Browse_Bonjour(void * v)
{
struct connection_in * in = v ;
DNSServiceErrorType dnserr;
DETACH_THREAD;
MONITOR_RLOCK ;
dnserr = DNSServiceBrowse(&in->master.browse.bonjour_browse, 0, 0, "_owserver._tcp", NULL, BrowseBack, NULL);
if (dnserr != kDNSServiceErr_NoError) {
LEVEL_CONNECT("DNSServiceBrowse error = %d", dnserr);
MONITOR_RUNLOCK ;
return VOID_RETURN ;
}
// Blocks, which is why this is in it's own thread
while (DNSServiceProcessResult(in->master.browse.bonjour_browse) == kDNSServiceErr_NoError) {
//printf("DNSServiceProcessResult ref %ld\n",(long int)rs->sref) ;
continue;
}
DNSServiceRefDeallocate(in->master.browse.bonjour_browse);
in->master.browse.bonjour_browse = 0 ;
MONITOR_RUNLOCK ;
return VOID_RETURN;
}
/* Register the out port with Bonjour -- might block so done in a separate thread */
static void *Announce(void *v)
{
struct connection_out *out = v;
DNSServiceRef sref = 0;
DNSServiceErrorType err;
struct sockaddr sa;
//socklen_t sl = sizeof(sa);
socklen_t sl = 128;
uint16_t port ;
char * service_name ;
char name[63] ;
DETACH_THREAD;
if (getsockname(out->file_descriptor, &sa, &sl)) {
LEVEL_CONNECT("Could not get port number of device.");
pthread_exit(NULL);
return VOID_RETURN;
}
port = ntohs(((struct sockaddr_in *) (&sa))->sin_port) ;
/* Add the service */
switch (Globals.program_type) {
case program_type_httpd:
service_name = (Globals.announce_name) ? Globals.announce_name : "OWFS (1-wire) Web" ;
UCLIBCLOCK;
snprintf(name,62,"%s <%d>",service_name,(int)port);
UCLIBCUNLOCK;
err = DNSServiceRegister(&sref, 0, 0, name,"_http._tcp", NULL, NULL, port, 0, NULL, RegisterBack, out) ;
Announce_Post_Register(sref, err) ;
err = DNSServiceRegister(&sref, 0, 0, name,"_owhttpd._tcp", NULL, NULL, port, 0, NULL, RegisterBack, out) ;
break ;
case program_type_server:
case program_type_external:
service_name = (Globals.announce_name) ? Globals.announce_name : "OWFS (1-wire) Server" ;
UCLIBCLOCK;
snprintf(name,62,"%s <%d>",service_name,(int)port);
UCLIBCUNLOCK;
err = DNSServiceRegister(&sref, 0, 0, name,"_owserver._tcp", NULL, NULL, port, 0, NULL, RegisterBack, out) ;
break;
case program_type_ftpd:
service_name = (Globals.announce_name) ? Globals.announce_name : "OWFS (1-wire) FTP" ;
UCLIBCLOCK;
snprintf(name,62,"%s <%d>",service_name,(int)port);
UCLIBCUNLOCK;
err = DNSServiceRegister(&sref, 0, 0, name,"_owftp._tcp", NULL, NULL, port, 0, NULL, RegisterBack, out) ;
break;
default:
err = kDNSServiceErr_NoError ;
break ;
}
Announce_Post_Register(sref, err) ;
LEVEL_DEBUG("Normal completion");
pthread_exit(NULL);
return VOID_RETURN;
}
// RESET called with bus locked
RESET_TYPE BUS_reset(const struct parsedname *pn)
{
struct connection_in * in = pn->selected_connection ;
STAT_ADD1_BUS(e_bus_resets, in);
switch ( (in->iroutines.reset) (pn) ) {
case BUS_RESET_OK:
in->reconnect_state = reconnect_ok; // Flag as good!
if (in->ds2404_found && ((in->iroutines.flags&ADAP_FLAG_no2404delay)==0) ) {
// extra delay for alarming DS1994/DS2404 complience
UT_delay(5);
}
return BUS_RESET_OK ;
case BUS_RESET_SHORT:
/* Shorted 1-wire bus or minor error shouldn't cause a reconnect */
in->AnyDevices = anydevices_unknown;
LEVEL_CONNECT("1-wire bus short circuit.");
STAT_ADD1_BUS(e_bus_short_errors, in);
return BUS_RESET_SHORT;
case BUS_RESET_ERROR:
if ( in->ds2404_found ) {
// extra reset for DS1994/DS2404 might be needed
if ( (in->iroutines.reset) (pn) == BUS_RESET_OK ) {
return BUS_RESET_OK ;
}
}
default:
in->reconnect_state++; // Flag for eventual reconnection
LEVEL_DEBUG("Reset error. Reconnection %d/%d",in->reconnect_state,reconnect_error);
STAT_ADD1_BUS(e_bus_reset_errors, in);
return BUS_RESET_ERROR ;
}
}
/* Includes a count of the rejected existing USB devices
* needed for compatibility with the -u2 -u3 arguments
*/
GOOD_OR_BAD USB_next_match_until_n(struct usb_list *ul, int num)
{
int found = 0 ;
while (ul->bus) {
// First pass, look for next device
if (ul->dev == NULL) {
ul->dev = ul->bus->devices;
} else { // New bus, find first device
ul->dev = ul->dev->next;
ul->usb_dev_number = -1 ;
}
if (ul->dev) { // device found
if (ul->dev->descriptor.idVendor != DS2490_USB_VENDOR || ul->dev->descriptor.idProduct != DS2490_USB_PRODUCT) {
continue; // not DS9490
}
if ( sscanf( ul->dev->filename, "%u", &(ul->usb_dev_number) ) <= 0 ) {
ul->usb_dev_number = -1 ;
}
++ found ;
if ( found < num ) {
continue ;
}
LEVEL_CONNECT("Bus master found: %.d:%.d", ul->usb_bus_number, ul->usb_dev_number);
return usbdevice_in_use( ul );
} else {
ul->bus = ul->bus->next;
if ( ul->bus == NULL || sscanf( ul->bus->dirname, "%u", &(ul->usb_bus_number) ) <= 0 ) {
ul->usb_bus_number = -1 ;
}
ul->dev = NULL;
}
}
return gbBAD;
}
/* Re-open a DS2482 */
static GOOD_OR_BAD DS2482_redetect(const struct parsedname *pn)
{
struct connection_in *head = pn->selected_connection->master.i2c.head;
int address = head->master.i2c.i2c_address;
FILE_DESCRIPTOR_OR_ERROR file_descriptor;
struct address_pair ap ; // to get device name from device:address
/* open the i2c port */
Parse_Address( DEVICENAME(head), &ap ) ;
file_descriptor = open(ap.first.alpha, O_RDWR );
Free_Address( &ap ) ;
if ( FILE_DESCRIPTOR_NOT_VALID(file_descriptor) ) {
ERROR_CONNECT("Could not open i2c device %s", DEVICENAME(head));
return gbBAD;
}
/* address is known */
if (ioctl(file_descriptor, I2C_SLAVE, address) < 0) {
ERROR_CONNECT("Cound not set i2c address to %.2X", address);
} else {
BYTE c;
/* write the RESET code */
if (i2c_smbus_write_byte(file_descriptor, DS2482_CMD_RESET) // reset
|| BAD(DS2482_readstatus(&c, file_descriptor, DS2482_Chip_reset_usec)) // pause .5 usec then read status
|| (c != (DS2482_REG_STS_LL | DS2482_REG_STS_RST)) // make sure status is properly set
) {
LEVEL_CONNECT("i2c device at %s address %d cannot be reset. Not a DS2482.", DEVICENAME(head), address);
} else {
struct connection_in * next ;
head->master.i2c.current = 0;
head->pown->file_descriptor = file_descriptor;
head->pown->state = cs_deflowered ;
head->pown->type = ct_i2c ;
head->master.i2c.configchip = 0x00; // default configuration register after RESET
LEVEL_CONNECT("i2c device at %s address %d reset successfully", DEVICENAME(head), address);
for ( next = head->pown->first; next; next = next->next ) {
/* loop through devices, matching those that have the same "head" */
/* BUSLOCK also locks the sister channels for this */
next->reconnect_state = reconnect_ok;
}
return gbGOOD;
}
}
/* fellthough, no device found */
close(file_descriptor);
return gbBAD;
}
void OW_Browse(struct connection_in *in)
{
if ( Globals.zero == zero_avahi ) {
#if OW_AVAHI
if ( BAD(OW_Avahi_Browse(in))) {
LEVEL_CONNECT("Avahi Browse problem.");
}
#endif /* OW_AVAHI */
} else if ( Globals.zero == zero_bonjour ) {
pthread_t thread;
int err = pthread_create(&thread, DEFAULT_THREAD_ATTR, OW_Browse_Bonjour, (void *) in);
if (err) {
LEVEL_CONNECT("Bonjour Browse thread error %d.", err);
}
}
}
static void Announce_Post_Register(DNSServiceRef sref, DNSServiceErrorType err)
{
if (err == kDNSServiceErr_NoError) {
DNSServiceProcessResult(sref);
} else {
LEVEL_CONNECT("Unsuccessful call to DNSServiceRegister err = %d", err);
}
}
/* Open a DS9490 -- low level code (to allow for repeats) */
static GOOD_OR_BAD DS9490_detect_single_adapter(int usb_nr, struct connection_in * in)
{
// discover devices
libusb_device **device_list;
int n_devices = libusb_get_device_list( Globals.luc, &device_list) ;
int i_device ;
if ( n_devices < 1 ) {
LEVEL_CONNECT("Could not find a list of USB devices");
if ( n_devices<0 ) {
LEVEL_DEBUG("<%s>",libusb_error_name(n_devices));
}
return gbBAD ;
}
for ( i_device = 0 ; i_device < n_devices ; ++i_device ) {
libusb_device * current = device_list[i_device] ;
if ( GOOD( USB_match( current ) ) ) {
--usb_nr ;
if ( usb_nr > 0 ) {
continue ;
}
if ( BAD(DS9490_open_and_name( current, in)) ) {
LEVEL_DEBUG("Cannot open USB device %.d:%.d", libusb_get_device_address(current), libusb_get_bus_number(current) );
break ;
} else if ( BAD(DS9490_ID_this_master(in)) ) {
DS9490_close(in) ;
LEVEL_DEBUG("Cannot access USB device %.d:%.d", libusb_get_device_address(current), libusb_get_bus_number(current) );
break ;
} else{
libusb_free_device_list(device_list, 1);
return gbGOOD ;
}
}
}
libusb_free_device_list(device_list, 1);
LEVEL_CONNECT("No USB DS9490 bus master found");
return gbBAD;
}
static int Test_HA7_response( struct HA7_response * ha7_response )
{
LEVEL_DEBUG("From ha7_response: signature=%.2s, command=%X, port=%d, ssl=%d, MAC=%.12s, device=%s",
ha7_response->signature,
ntohs(ha7_response->command),
ntohs(ha7_response->port),
ntohs(ha7_response->sslport),
ha7_response->serial_num,
ha7_response->dev_name) ;
if (memcmp("HA", ha7_response->signature, 2)) {
LEVEL_CONNECT("HA7 response signature error");
return 1;
}
if ( 0x8001 != ntohs(ha7_response->command) ) {
LEVEL_CONNECT("HA7 response command error");
return 1;
}
return 0 ;
}
GOOD_OR_BAD FS_FindHA7(void)
{
struct addrinfo *ai;
struct addrinfo hint;
struct addrinfo *now;
int number_found = 0;
int getaddr_error ;
LEVEL_DEBUG("Attempting udp multicast search for the HA7Net bus master at %s:%s",HA7_DISCOVERY_ADDRESS,HA7_DISCOVERY_PORT);
Setup_HA7_hint( &hint ) ;
if ((getaddr_error = getaddrinfo(HA7_DISCOVERY_ADDRESS, HA7_DISCOVERY_PORT, &hint, &ai))) {
LEVEL_CONNECT("Couldn't set up HA7 broadcast message %s", gai_strerror(getaddr_error));
return gbBAD;
}
for (now = ai; now; now = now->ai_next) {
ASCII name[INET_ADDRSTRLEN+20]; // tcp quad + port
struct port_in * pin ;
struct connection_in *in;
if ( Get_HA7_response( now, name ) ) {
continue ;
}
pin = NewPort(NO_CONNECTION) ;
if (pin == NULL) {
continue;
}
in = pin->first ;
pin->type = ct_tcp ;
pin->init_data = owstrdup(name);
DEVICENAME(in) = owstrdup(name);
pin->busmode = bus_ha7net;
LEVEL_CONNECT("HA7Net bus master discovered at %s",DEVICENAME(in));
++number_found ;
}
freeaddrinfo(ai);
return number_found > 0 ? gbGOOD : gbBAD ;
}
static GOOD_OR_BAD DS2482_channel_select(struct connection_in * in)
{
struct connection_in *head = in->master.i2c.head;
int chan = in->master.i2c.index;
FILE_DESCRIPTOR_OR_ERROR file_descriptor = in->pown->file_descriptor;
/*
Write and verify codes for the CHANNEL_SELECT command (DS2482-800 only).
To set the channel, write the value at the index of the channel.
Read and compare against the corresponding value to verify the change.
*/
static const BYTE W_chan[8] = { 0xF0, 0xE1, 0xD2, 0xC3, 0xB4, 0xA5, 0x96, 0x87 };
static const BYTE R_chan[8] = { 0xB8, 0xB1, 0xAA, 0xA3, 0x9C, 0x95, 0x8E, 0x87 };
if ( FILE_DESCRIPTOR_NOT_VALID(file_descriptor) ) {
LEVEL_CONNECT("Calling a closed i2c channel (%d) "I2Cformat" ", chan,I2Cvar(in));
return gbBAD;
}
/* Already properly selected? */
/* All `100 (1 channel) will be caught here */
if (chan != head->master.i2c.current) {
int read_back;
/* Select command */
if (i2c_smbus_write_byte_data(file_descriptor, DS2482_CMD_CHANNEL_SELECT, W_chan[chan]) < 0) {
LEVEL_DEBUG("Channel select set error");
return gbBAD;
}
/* Read back and confirm */
read_back = i2c_smbus_read_byte(file_descriptor);
if (read_back < 0) {
LEVEL_DEBUG("Channel select get error");
return gbBAD; // flag for DS2482-100 vs -800 detection
}
if (((BYTE) read_back) != R_chan[chan]) {
LEVEL_DEBUG("Channel selected doesn't match");
return gbBAD; // flag for DS2482-100 vs -800 detection
}
/* Set the channel in head */
head->master.i2c.current = in->master.i2c.index;
}
/* Now check the configuration register */
/* This is since configuration is per chip, not just channel */
if (in->master.i2c.configreg != head->master.i2c.configchip) {
return SetConfiguration(in->master.i2c.configreg, in);
}
return gbGOOD;
}
/* Stolen from Unix Network Programming by Stevens, Fenner, Rudoff p89 */
ssize_t tcp_read(int file_descriptor, void *vptr, size_t n, const struct timeval * ptv)
{
size_t nleft;
ssize_t nread;
char *ptr;
//printf("NetRead attempt %d bytes Time:(%ld,%ld)\n",(int)n,ptv->tv_sec,ptv->tv_usec ) ;
ptr = vptr;
nleft = n;
while (nleft > 0) {
int rc;
fd_set readset;
struct timeval tv = { ptv->tv_sec, ptv->tv_usec, };
/* Initialize readset */
FD_ZERO(&readset);
FD_SET(file_descriptor, &readset);
/* Read if it doesn't timeout first */
rc = select(file_descriptor + 1, &readset, NULL, NULL, &tv);
if (rc > 0) {
/* Is there something to read? */
if (FD_ISSET(file_descriptor, &readset) == 0) {
return -EIO; /* error */
}
//update_max_delay(pn);
if ((nread = read(file_descriptor, ptr, nleft)) < 0) {
if (errno == EINTR) {
errno = 0; // clear errno. We never use it anyway.
nread = 0; /* and call read() again */
} else {
ERROR_DATA("Network data read error\n");
return (-1);
}
} else if (nread == 0) {
break; /* EOF */
}
//Debug_Bytes( "NETREAD",ptr, nread ) ;
nleft -= nread;
ptr += nread;
} else if (rc < 0) { /* select error */
if (errno == EINTR) {
/* select() was interrupted, try again */
continue;
}
ERROR_DATA("Selection error (network)\n");
return -EINTR;
} else { /* timed out */
LEVEL_CONNECT("TIMEOUT after %d bytes\n", n - nleft);
return -EAGAIN;
}
}
return (n - nleft); /* return >= 0 */
}
/* Open a DS9490 -- low level code (to allow for repeats) */
static GOOD_OR_BAD DS9490_redetect_match( struct connection_in * in)
{
struct dirblob db ;
BYTE sn[SERIAL_NUMBER_SIZE] ;
int device_number ;
LEVEL_DEBUG("Attempting reconnect on %s",SAFESTRING(DEVICENAME(in)));
// Special case -- originally untagged adapter
if ( in->master.usb.ds1420_address[0] == '\0' ) {
LEVEL_CONNECT("Since originally untagged bus master, we will use first available slot.");
return gbGOOD ;
}
// Generate a root directory
RETURN_BAD_IF_BAD( DS9490_root_dir( &db, in ) ) ;
// This adapter has no tags, so not the one we want
if ( DirblobElements( &db) == 0 ) {
DirblobClear( &db ) ;
LEVEL_DATA("Empty directory on [%s] (Doesn't match initial scan).", SAFESTRING(DEVICENAME(in)));
return gbBAD ;
}
// Scan directory for a match to the original tag
device_number = 0 ;
while ( DirblobGet( device_number, sn, &db ) == 0 ) {
if (memcmp(sn, in->master.usb.ds1420_address, SERIAL_NUMBER_SIZE) == 0) { // same tag device?
LEVEL_DATA("Matching device [%s].", SAFESTRING(DEVICENAME(in)));
DirblobClear( &db ) ;
return gbGOOD ;
}
++device_number ;
}
// Couldn't find correct ds1420 chip on this adapter
LEVEL_CONNECT("Couldn't find correct ds1420 chip on this bus master [%s] (want: " SNformat ")", SAFESTRING(DEVICENAME(in)), SNvar(in->master.usb.ds1420_address));
DirblobClear( &db ) ;
return gbBAD;
}
/* Note, config is stored as only the lower nibble */
static GOOD_OR_BAD SetConfiguration(BYTE c, struct connection_in *in)
{
struct connection_in *head = in->master.i2c.head;
FILE_DESCRIPTOR_OR_ERROR file_descriptor = in->pown->file_descriptor;
int read_back;
/* Write, readback, and compare configuration register */
/* Logic error fix from Uli Raich */
if (i2c_smbus_write_byte_data(file_descriptor, DS2482_CMD_WRITE_CONFIG, c | ((~c) << 4))
|| (read_back = i2c_smbus_read_byte(file_descriptor)) < 0 || ((BYTE) read_back != c)
) {
head->master.i2c.configchip = 0xFF; // bad value to trigger retry
LEVEL_CONNECT("Trouble changing DS2482 configuration register "I2Cformat" ",I2Cvar(in));
return gbBAD;
}
/* Clear the strong pull-up power bit(register is automatically cleared by reset) */
in->master.i2c.configreg = head->master.i2c.configchip = c & ~DS2482_REG_CFG_SPU;
return gbGOOD;
}
void ZeroConf_Announce(struct connection_out *out)
{
if ( Globals.announce_off) {
return;
} else if ( Globals.zero == zero_avahi ) {
#if OW_AVAHI
GOOD_OR_BAD oaa = OW_Avahi_Announce( out ) ;
LEVEL_DEBUG( "Avahi (zero-configuration service) broadcast was %s successful",BAD(oaa)?"NOT":"") ;
#endif /* OW_AVAHI */
} else if ( Globals.zero == zero_bonjour ) {
pthread_t thread;
int err = pthread_create(&thread, DEFAULT_THREAD_ATTR, Announce, (void *) out);
if (err) {
LEVEL_CONNECT("Zeroconf/Bonjour registration thread error %d.", err);
}
}
}
static int Get_HA7_response( struct addrinfo *now, char * name )
{
struct timeval tv = { 50, 0 };
FILE_DESCRIPTOR_OR_ERROR file_descriptor;
struct HA7_response ha7_response ;
struct sockaddr_in from ;
socklen_t fromlen = sizeof(struct sockaddr_in) ;
int on = 1;
file_descriptor = socket(now->ai_family, now->ai_socktype, now->ai_protocol) ;
if ( FILE_DESCRIPTOR_NOT_VALID(file_descriptor) ) {
ERROR_DEBUG("Cannot get socket file descriptor for broadcast.");
return 1;
}
// fcntl (file_descriptor, F_SETFD, FD_CLOEXEC); // for safe forking
if (setsockopt(file_descriptor, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)) == -1) {
ERROR_DEBUG("Cannot set socket option for broadcast.");
return 1;
}
if (sendto(file_descriptor, "HA\000\001", 4, 0, now->ai_addr, now->ai_addrlen)
!= 4) {
ERROR_CONNECT("Trouble sending broadcast message");
return 1;
}
/* now read */
if ( udp_read(file_descriptor, &ha7_response, sizeof(struct HA7_response), &tv, &from, &fromlen) != sizeof(struct HA7_response) ) {
LEVEL_CONNECT("HA7 response bad length");
return 1;
}
if ( Test_HA7_response( &ha7_response ) ) {
return 1 ;
}
UCLIBCLOCK ;
snprintf(name,INET_ADDRSTRLEN+20,"%s:%d",inet_ntoa(from.sin_addr),ntohs(ha7_response.port));
UCLIBCUNLOCK ;
return 0 ;
}
int ClientAddr(char *sname, struct connection_in *in)
{
struct addrinfo hint;
char *p;
int ret;
if (sname == NULL || sname[0] == '\0') {
sname = "4304";
}
if ((p = strrchr(sname, ':'))) { /* : exists */
p[0] = '\0'; /* Separate tokens in the string */
in->tcp.host = strdup(sname);
in->tcp.service = strdup(&p[1]);
p[0] = ':'; /* restore name string */
} else {
#if OW_CYGWIN
in->tcp.host = strdup("127.0.0.1");
#else
in->tcp.host = NULL;
#endif
in->tcp.service = strdup(sname);
}
memset(&hint, 0, sizeof(struct addrinfo));
hint.ai_socktype = SOCK_STREAM;
#if OW_CYGWIN
hint.ai_family = AF_INET;
#else
hint.ai_family = AF_UNSPEC;
#endif
//printf("ClientAddr: [%s] [%s]\n", in->connin.tcp.host, in->connin.tcp.service);
if ((ret = getaddrinfo(in->tcp.host, in->tcp.service, &hint, &in->tcp.ai))) {
LEVEL_CONNECT("GetAddrInfo error %s\n", gai_strerror(ret));
return -1;
}
return 0;
}
static void SetConninData( int indx, const char * type, struct port_in *pin )
{
struct connection_in * in = pin->first ;
char name[20] ;
pin->file_descriptor = indx;
pin->type = ct_none ;
in->master.fake.index = indx;
in->master.fake.templow = Globals.templow;
in->master.fake.temphigh = Globals.temphigh;
LEVEL_CONNECT("Setting up %s Bus Master (%d)", type, indx);
UCLIBCLOCK ;
snprintf(name, 18, "%s.%d", type, indx);
UCLIBCUNLOCK ;
GetAllDeviceNames( pin ) ;
// Device name and init_data diverge now
SAFEFREE(DEVICENAME(in)) ;
DEVICENAME(in) = owstrdup(name);
}
void ZeroConf_Announce(struct connection_out *out)
{
(void) out;
LEVEL_CONNECT("Zeroconf not enabled");
return;
}
/* return < 0 if failure */
ZERO_OR_ERROR tcp_read(FILE_DESCRIPTOR_OR_ERROR file_descriptor, BYTE * buffer, size_t requested_size, const struct timeval * ptv, size_t * chars_in)
{
size_t to_be_read = requested_size ;
if ( FILE_DESCRIPTOR_NOT_VALID( file_descriptor ) ) {
return -EBADF ;
}
LEVEL_DEBUG("attempt %d bytes Time: "TVformat,(int)requested_size, TVvar(ptv) ) ;
*chars_in = 0 ;
while (to_be_read > 0) {
int select_result;
fd_set readset;
struct timeval tv ;
/* Initialize readset */
FD_ZERO(&readset);
FD_SET(file_descriptor, &readset);
/* Read if it doesn't timeout first */
timercpy( &tv, ptv ) ;
select_result = select(file_descriptor + 1, &readset, NULL, NULL, &tv);
if (select_result > 0) {
ssize_t read_result;
/* Is there something to read? */
if (FD_ISSET(file_descriptor, &readset) == 0) {
LEVEL_DEBUG("tcp_error -- nothing avialable to read");
return -EBADF ; /* error */
}
errno = 0 ;
read_result = read(file_descriptor, &buffer[*chars_in], to_be_read) ;
if ( read_result < 0 ) {
if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK) {
read_result = 0; /* and call read() again */
} else {
LEVEL_DATA("Network data read error errno=%d %s", errno, strerror(errno));
STAT_ADD1(NET_read_errors);
return -EBADF ;
}
} else if (read_result == 0) {
break; /* EOF */
}
TrafficInFD("NETREAD", &buffer[*chars_in], read_result, file_descriptor ) ;
to_be_read -= read_result;
*chars_in += read_result ;
} else if (select_result < 0) { /* select error */
if (errno == EINTR) {
/* select() was interrupted, try again */
continue;
}
ERROR_DATA("Select error");
return -EBADF;
} else { /* timed out */
LEVEL_CONNECT("TIMEOUT after %d bytes", requested_size - to_be_read);
return -EAGAIN;
}
}
LEVEL_DEBUG("read: %d - %d = %d",(int)requested_size, (int) to_be_read, (int) (requested_size-to_be_read) ) ;
return 0;
}
/* Try to see if there is a DS2482 device on the specified i2c bus */
static GOOD_OR_BAD DS2482_detect_single(int lowindex, int highindex, char * i2c_device, struct port_in *pin)
{
int test_address[8] = { 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, }; // the last 4 are -800 only
int i2c_index;
FILE_DESCRIPTOR_OR_ERROR file_descriptor;
struct connection_in * in = pin->first ;
/* Sanity check */
if ( lowindex < 0 ) {
LEVEL_DEBUG("Bad lower bound");
return gbBAD ;
}
if ( highindex >= (int) (sizeof(test_address)/sizeof(int)) ) {
LEVEL_DEBUG("Bad upper bound");
return gbBAD ;
}
/* open the i2c port */
file_descriptor = open(i2c_device, O_RDWR);
if ( FILE_DESCRIPTOR_NOT_VALID(file_descriptor) ) {
ERROR_CONNECT("Could not open i2c device %s", i2c_device);
return gbBAD;
}
/* Set up low-level routines */
DS2482_setroutines(in);
for (i2c_index = lowindex; i2c_index <= highindex; ++i2c_index) {
int trial_address = test_address[i2c_index] ;
/* set the candidate address */
if (ioctl(file_descriptor, I2C_SLAVE, trial_address) < 0) {
ERROR_CONNECT("Cound not set trial i2c address to %.2X", trial_address);
} else {
BYTE c;
LEVEL_CONNECT("Found an i2c device at %s address %.2X", i2c_device, trial_address);
/* Provisional setup as a DS2482-100 ( 1 channel ) */
in->pown->file_descriptor = file_descriptor;
pin->state = cs_deflowered;
pin->type = ct_i2c ;
in->master.i2c.i2c_address = trial_address;
in->master.i2c.i2c_index = i2c_index;
in->master.i2c.index = 0;
in->master.i2c.channels = 1;
in->master.i2c.current = 0;
in->master.i2c.head = in;
in->adapter_name = "DS2482-100";
in->master.i2c.configreg = 0x00 ; // default configuration setting desired
if ( Globals.i2c_APU ) {
in->master.i2c.configreg |= DS2482_REG_CFG_APU ;
}
if ( Globals.i2c_PPM ) {
in->master.i2c.configreg |= DS2482_REG_CFG_PPM ;
}
in->Adapter = adapter_DS2482_100;
/* write the RESET code */
if (i2c_smbus_write_byte(file_descriptor, DS2482_CMD_RESET) // reset
|| BAD(DS2482_readstatus(&c, file_descriptor, DS2482_Chip_reset_usec)) // pause .5 usec then read status
|| (c != (DS2482_REG_STS_LL | DS2482_REG_STS_RST)) // make sure status is properly set
) {
LEVEL_CONNECT("i2c device at %s address %.2X cannot be reset. Not a DS2482.", i2c_device, trial_address);
continue;
}
LEVEL_CONNECT("i2c device at %s address %.2X appears to be DS2482-x00", i2c_device, trial_address);
in->master.i2c.configchip = 0x00; // default configuration register after RESET
// Note, only the lower nibble of the device config stored
// Create name
SAFEFREE( DEVICENAME(in) ) ;
DEVICENAME(in) = owmalloc( strlen(i2c_device) + 10 ) ;
if ( DEVICENAME(in) ) {
UCLIBCLOCK;
snprintf(DEVICENAME(in), strlen(i2c_device) + 10, "%s:%.2X", i2c_device, trial_address);
UCLIBCUNLOCK;
}
/* Now see if DS2482-100 or DS2482-800 */
return HeadChannel(in);
}
}
/* fell though, no device found */
COM_close( in ) ;
return gbBAD;
}
/* ---------------------------------------------- */
int main(int argc, char *argv[])
{
int c;
struct Fuse_option fuse_options;
/* Set up owlib */
LibSetup(program_type_filesystem);
/* grab our executable name */
if (argc > 0) {
Globals.progname = owstrdup(argv[0]);
}
//mtrace() ;
/* process command line arguments */
while ((c = getopt_long(argc, argv, OWLIB_OPT, owopts_long, NULL)) != -1) {
switch (c) {
case 'V':
fprintf(stderr, "%s version:\n\t" VERSION "\n", argv[0]);
break;
case e_fuse_opt: /* fuse_mnt_opt */
if (fuse_mnt_opt) {
owfree(fuse_mnt_opt);
}
fuse_mnt_opt = Fuse_arg(optarg, "FUSE mount options");
if (fuse_mnt_opt == NULL) {
ow_exit(0);
}
break;
case e_fuse_open_opt: /* fuse_open_opt */
if (fuse_open_opt) {
owfree(fuse_open_opt);
}
fuse_open_opt = Fuse_arg(optarg, "FUSE open options");
if (fuse_open_opt == NULL) {
ow_exit(0);
}
break;
}
if ( BAD( owopt(c, optarg) ) ) {
ow_exit(0); /* rest of message */
}
}
/* non-option arguments */
while (optind < argc - 1) {
ARG_Generic(argv[optind]);
++optind;
}
while (optind < argc) {
if (Outbound_Control.active) {
ARG_Generic(argv[optind]);
} else {
ARG_Server(argv[optind]);
}
++optind;
}
if (Outbound_Control.active == 0) {
LEVEL_DEFAULT("No mount point specified.\nTry '%s -h' for help.", argv[0]);
ow_exit(1);
}
// FUSE directory mounting
LEVEL_CONNECT("fuse mount point: %s", Outbound_Control.head->name);
// Signal handler is set in fuse library
//set_signal_handlers(exit_handler);
/* Set up adapters */
if ( BAD(LibStart()) ) {
ow_exit(1);
}
#if FUSE_VERSION >= 14
/* Set up "command line" for main fuse routines */
Fuse_setup(&fuse_options); // command line setup
Fuse_add(Outbound_Control.head->name, &fuse_options); // mount point
#if FUSE_VERSION >= 22
Fuse_add("-o", &fuse_options); // add "-o direct_io" to prevent buffering
Fuse_add("direct_io", &fuse_options);
#endif /* FUSE_VERSION >= 22 */
if (!Globals.want_background) {
Fuse_add("-f", &fuse_options); // foreground for fuse too
if (Globals.error_level > 2) {
Fuse_add("-d", &fuse_options); // debug for fuse too
}
}
Fuse_parse(fuse_mnt_opt, &fuse_options);
LEVEL_DEBUG("fuse_mnt_opt=[%s]", fuse_mnt_opt);
Fuse_parse(fuse_open_opt, &fuse_options);
LEVEL_DEBUG("fuse_open_opt=[%s]", fuse_open_opt);
if (Globals.allow_other) {
Fuse_add("-o", &fuse_options); // add "-o allow_other" to permit other users access
Fuse_add("allow_other", &fuse_options);
}
#if OW_MT == 0
Fuse_add("-s", &fuse_options); // single threaded
#endif /* OW_MT */
Globals.now_background = Globals.want_background; // tell "error" that we are background
#if 0
{
int i;
for (i = 0; i < fuse_options.argc; i++) {
LEVEL_DEBUG("fuse_options.argv[%d]=[%s]", i, fuse_options.argv[i]);
}
}
#endif
#if FUSE_VERSION > 25
fuse_main(fuse_options.argc, fuse_options.argv, &owfs_oper, NULL);
#else /* FUSE_VERSION <= 25 */
fuse_main(fuse_options.argc, fuse_options.argv, &owfs_oper);
#endif /* FUSE_VERSION <= 25 */
Fuse_cleanup(&fuse_options);
#endif
ow_exit(0);
return 0;
}
void OW_Browse(struct connection_in *in)
{
(void) in ;
LEVEL_CONNECT("Avahi and Bonjour not enabled");
}
GOOD_OR_BAD ClientAddr(char *sname, char * default_port, struct connection_in *in)
{
struct port_in * pin = in->pown ;
struct addrinfo hint;
struct address_pair ap ;
int ret;
Parse_Address( sname, &ap ) ;
switch ( ap.entries ) {
case 0: // Complete default address
pin->dev.tcp.host = NULL;
pin->dev.tcp.service = owstrdup(default_port);
break ;
case 1: // single entry -- usually port unless a dotted quad
switch ( ap.first.type ) {
case address_none:
pin->dev.tcp.host = NULL;
pin->dev.tcp.service = owstrdup(default_port);
break ;
case address_dottedquad:
// looks like an IP address
pin->dev.tcp.host = owstrdup(ap.first.alpha);
pin->dev.tcp.service = owstrdup(default_port);
break ;
case address_numeric:
pin->dev.tcp.host = NULL;
pin->dev.tcp.service = owstrdup(ap.first.alpha);
break ;
default:
// assume it's a port if it's the SERVER
if ( strcasecmp( default_port, DEFAULT_SERVER_PORT ) == 0 ) {
pin->dev.tcp.host = NULL;
pin->dev.tcp.service = owstrdup(ap.first.alpha);
} else {
pin->dev.tcp.host = owstrdup(ap.first.alpha);
pin->dev.tcp.service = owstrdup(default_port);
}
break ;
}
break ;
case 2:
default: // address:port format -- unambiguous
pin->dev.tcp.host = ( ap.first.type == address_none ) ? NULL : owstrdup(ap.first.alpha) ;
pin->dev.tcp.service = ( ap.second.type == address_none ) ? owstrdup(default_port) : owstrdup(ap.second.alpha) ;
break ;
}
Free_Address( &ap ) ;
memset(&hint, 0, sizeof(struct addrinfo));
// hint.ai_socktype = SOCK_STREAM | SOCK_CLOEXEC ;
hint.ai_socktype = SOCK_STREAM ;
#if OW_CYGWIN
hint.ai_family = AF_INET;
if( pin->dev.tcp.host == NULL) {
/* getaddrinfo doesn't work with host=NULL for cygwin */
pin->dev.tcp.host = owstrdup("127.0.0.1");
}
#else
hint.ai_family = AF_UNSPEC;
#endif
LEVEL_DEBUG("IP address=[%s] port=[%s]", SAFESTRING( pin->dev.tcp.host), pin->dev.tcp.service);
ret = getaddrinfo( pin->dev.tcp.host, pin->dev.tcp.service, &hint, &( pin->dev.tcp.ai) ) ;
if ( ret != 0 ) {
LEVEL_CONNECT("GETADDRINFO error %s", gai_strerror(ret));
return gbBAD;
}
return gbGOOD;
}
/* Device-specific functions */
GOOD_OR_BAD ENET_monitor_detect(struct port_in *pin)
{
struct connection_in * in = pin->first ;
struct address_pair ap ;
pthread_t thread ;
/* init_data has form "scan" or "scan:15" (15 seconds) */
Parse_Address( pin->init_data, &ap ) ;
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
switch ( ap.entries ) {
case 0:
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
break ;
case 1:
switch( ap.first.type ) {
case address_numeric:
in->master.enet_monitor.enet_scan_interval = ap.first.number ;
break ;
default:
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
break ;
}
break ;
case 2:
switch( ap.second.type ) {
case address_numeric:
in->master.enet_monitor.enet_scan_interval = ap.second.number ;
break ;
default:
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
break ;
}
break ;
}
Free_Address( &ap ) ;
pin->type = ct_none ;
// Device name will not be init_data copy
SAFEFREE(DEVICENAME(in)) ;
DEVICENAME(in) = owstrdup("ENET bus monitor") ;
pin->file_descriptor = FILE_DESCRIPTOR_BAD;
in->iroutines.detect = ENET_monitor_detect;
in->Adapter = adapter_enet_monitor;
in->iroutines.reset = NO_RESET_ROUTINE;
in->iroutines.next_both = NO_NEXT_BOTH_ROUTINE;
in->iroutines.PowerByte = NO_POWERBYTE_ROUTINE;
in->iroutines.ProgramPulse = NO_PROGRAMPULSE_ROUTINE;
in->iroutines.sendback_data = NO_SENDBACKDATA_ROUTINE;
in->iroutines.sendback_bits = NO_SENDBACKBITS_ROUTINE;
in->iroutines.select = NO_SELECT_ROUTINE;
in->iroutines.select_and_sendback = NO_SELECTANDSENDBACK_ROUTINE ;
in->iroutines.set_config = NO_SET_CONFIG_ROUTINE;
in->iroutines.get_config = NO_GET_CONFIG_ROUTINE;
in->iroutines.reconnect = NO_RECONNECT_ROUTINE;
in->iroutines.close = ENET_monitor_close;
in->iroutines.verify = NO_VERIFY_ROUTINE ;
in->iroutines.flags = ADAP_FLAG_sham;
in->adapter_name = "ENET scan";
pin->busmode = bus_enet_monitor ; // repeat since can come via usb=scan
Init_Pipe( in->master.enet_monitor.shutdown_pipe ) ;
if ( pipe( in->master.enet_monitor.shutdown_pipe ) != 0 ) {
ERROR_DEFAULT("Cannot allocate a shutdown pipe. The program shutdown may be messy");
Init_Pipe( in->master.enet_monitor.shutdown_pipe ) ;
}
if ( BAD( ENET_monitor_in_use(pin) ) ) {
LEVEL_CONNECT("Second call for ENET scanning ignored") ;
return gbBAD ;
}
if ( pthread_create(&thread, DEFAULT_THREAD_ATTR, ENET_monitor_loop, (void *) in) != 0 ) {
ERROR_CALL("Cannot create the ENET monitoring program thread");
return gbBAD ;
}
return gbGOOD ;
}
int main(int argc, char *argv[])
{
int c;
/* Set up owlib */
LibSetup(program_type_httpd);
Setup_Systemd() ; // systemd?
Setup_Launchd() ; // launchd?
/* grab our executable name */
ArgCopy( argc, argv ) ;
while ((c = getopt_long(argc, argv, OWLIB_OPT, owopts_long, NULL)) != -1) {
switch (c) {
case 'V':
fprintf(stderr, "%s version:\n\t" VERSION "\n", argv[0]);
break;
default:
break;
}
if ( BAD( owopt(c, optarg) ) ) {
ow_exit(0); /* rest of message */
}
}
/* non-option arguments */
while (optind < argc) {
ARG_Generic(argv[optind]);
++optind;
}
switch (Globals.daemon_status) {
case e_daemon_sd:
case e_daemon_sd_done:
// systemd done later
break ;
default:
if (Outbound_Control.active == 0) {
if (Globals.zero == zero_none) {
LEVEL_DEFAULT("%s would be \"locked in\" so will quit.\nBonjour and Avahi not available.", argv[0]);
ow_exit(1);
} else {
LEVEL_CONNECT("%s will use an ephemeral port", argv[0]) ;
}
ARG_Server(NULL); // make an ephemeral assignment
}
break ;
}
/* become a daemon if not told otherwise */
if ( BAD(EnterBackground()) ) {
ow_exit(1);
}
/* Set up adapters and systemd */
if ( BAD(LibStart(NULL)) ) {
ow_exit(1);
}
set_exit_signal_handlers(exit_handler);
set_signal_handlers(NULL);
ServerProcess(Acceptor);
LEVEL_DEBUG("ServerProcess done");
ow_exit(0);
LEVEL_DEBUG("owhttpd done");
return 0;
}