static void
read_snmp_response(int fd) /* I - SNMP socket file descriptor */
{
char addrname[256]; /* Source address name */
cups_snmp_t packet; /* Decoded packet */
snmp_cache_t key, /* Search key */
*device; /* Matching device */
/*
* Read the response data...
*/
if (!_cupsSNMPRead(fd, &packet, -1.0))
{
fprintf(stderr, "ERROR: Unable to read data from socket: %s\n",
strerror(errno));
return;
}
if (HostNameLookups)
httpAddrLookup(&(packet.address), addrname, sizeof(addrname));
else
httpAddrString(&(packet.address), addrname, sizeof(addrname));
debug_printf("DEBUG: %.3f Received data from %s...\n", run_time(), addrname);
/*
* Look for the response status code in the SNMP message header...
*/
if (packet.error)
{
fprintf(stderr, "ERROR: Bad SNMP packet from %s: %s\n", addrname,
packet.error);
return;
}
debug_printf("DEBUG: community=\"%s\"\n", packet.community);
debug_printf("DEBUG: request-id=%d\n", packet.request_id);
debug_printf("DEBUG: error-status=%d\n", packet.error_status);
if (packet.error_status && packet.request_id != DEVICE_TYPE)
return;
/*
* Find a matching device in the cache...
*/
key.addrname = addrname;
device = (snmp_cache_t *)cupsArrayFind(Devices, &key);
/*
* Process the message...
*/
switch (packet.request_id)
{
case DEVICE_TYPE :
/*
* Got the device type response...
*/
if (device)
{
debug_printf("DEBUG: Discarding duplicate device type for \"%s\"...\n",
addrname);
return;
}
/*
* Add the device and request the device data...
*/
add_cache(&(packet.address), addrname, NULL, NULL, NULL);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_DESCRIPTION, DescriptionOID);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_ID, DeviceIdOID);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_URI, UriOID);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_LOCATION, LocationOID);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_PRODUCT, LexmarkProductOID);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_PRODUCT, LexmarkProductOID2);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_ID, LexmarkDeviceIdOID);
_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
packet.community, CUPS_ASN1_GET_REQUEST,
DEVICE_PRODUCT, XeroxProductOID);
break;
case DEVICE_DESCRIPTION :
if (device && packet.object_type == CUPS_ASN1_OCTET_STRING)
{
/*
* Update an existing cache entry...
*/
char make_model[256]; /* Make and model */
if (strchr((char *)packet.object_value.string.bytes, ':') &&
strchr((char *)packet.object_value.string.bytes, ';'))
{
/*
* Description is the IEEE-1284 device ID...
*/
char *ptr; /* Pointer into device ID */
for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++)
if (*ptr == '\n')
*ptr = ';'; /* A lot of bad printers put a newline */
if (!device->id)
device->id = strdup((char *)packet.object_value.string.bytes);
backendGetMakeModel((char *)packet.object_value.string.bytes,
make_model, sizeof(make_model));
if (device->info)
free(device->info);
device->info = strdup(make_model);
}
else
{
/*
* Description is plain text...
*/
fix_make_model(make_model, (char *)packet.object_value.string.bytes,
sizeof(make_model));
if (device->info)
free(device->info);
device->info = strdup((char *)packet.object_value.string.bytes);
}
if (!device->make_and_model)
device->make_and_model = strdup(make_model);
}
break;
case DEVICE_ID :
if (device && packet.object_type == CUPS_ASN1_OCTET_STRING &&
(!device->id ||
strlen(device->id) < packet.object_value.string.num_bytes))
{
/*
* Update an existing cache entry...
*/
char make_model[256]; /* Make and model */
char *ptr; /* Pointer into device ID */
for (ptr = (char *)packet.object_value.string.bytes; *ptr; ptr ++)
if (*ptr == '\n')
*ptr = ';'; /* A lot of bad printers put a newline */
if (device->id)
free(device->id);
device->id = strdup((char *)packet.object_value.string.bytes);
/*
* Convert the ID to a make and model string...
*/
backendGetMakeModel((char *)packet.object_value.string.bytes,
make_model, sizeof(make_model));
if (device->make_and_model)
free(device->make_and_model);
device->make_and_model = strdup(make_model);
}
break;
case DEVICE_LOCATION :
if (device && packet.object_type == CUPS_ASN1_OCTET_STRING &&
!device->location)
device->location = strdup((char *)packet.object_value.string.bytes);
break;
case DEVICE_PRODUCT :
if (device && packet.object_type == CUPS_ASN1_OCTET_STRING &&
!device->id)
{
/*
* Update an existing cache entry...
*/
if (!device->info)
device->info = strdup((char *)packet.object_value.string.bytes);
if (device->make_and_model)
free(device->make_and_model);
device->make_and_model = strdup((char *)packet.object_value.string.bytes);
}
break;
case DEVICE_URI :
if (device && packet.object_type == CUPS_ASN1_OCTET_STRING &&
!device->uri && packet.object_value.string.num_bytes > 3)
{
/*
* Update an existing cache entry...
*/
char scheme[32], /* URI scheme */
userpass[256], /* Username:password in URI */
hostname[256], /* Hostname in URI */
resource[1024]; /* Resource path in URI */
int port; /* Port number in URI */
if (!strncmp((char *)packet.object_value.string.bytes, "lpr:", 4))
{
/*
* We want "lpd://..." for the URI...
*/
packet.object_value.string.bytes[2] = 'd';
}
if (httpSeparateURI(HTTP_URI_CODING_ALL,
(char *)packet.object_value.string.bytes,
scheme, sizeof(scheme),
userpass, sizeof(userpass),
hostname, sizeof(hostname), &port,
resource, sizeof(resource)) >= HTTP_URI_OK)
device->uri = strdup((char *)packet.object_value.string.bytes);
}
break;
}
}
int /* O - Number of OIDs found or -1 on error */
_cupsSNMPWalk(int fd, /* I - SNMP socket */
http_addr_t *address, /* I - Address to query */
int version, /* I - SNMP version */
const char *community,/* I - Community name */
const int *prefix, /* I - OID prefix */
double timeout, /* I - Timeout for each response in seconds */
cups_snmp_cb_t cb, /* I - Function to call for each response */
void *data) /* I - User data pointer that is passed to the callback function */
{
int count = 0; /* Number of OIDs found */
int request_id = 0; /* Current request ID */
cups_snmp_t packet; /* Current response packet */
int lastoid[CUPS_SNMP_MAX_OID];
/* Last OID we got */
/*
* Range check input...
*/
DEBUG_printf(("4_cupsSNMPWalk(fd=%d, address=%p, version=%d, "
"community=\"%s\", prefix=%p, timeout=%.1f, cb=%p, data=%p)",
fd, address, version, community, prefix, timeout, cb, data));
if (fd < 0 || !address || version != CUPS_SNMP_VERSION_1 || !community ||
!prefix || !cb)
{
DEBUG_puts("5_cupsSNMPWalk: Returning -1");
return (-1);
}
/*
* Copy the OID prefix and then loop until we have no more OIDs...
*/
_cupsSNMPCopyOID(packet.object_name, prefix, CUPS_SNMP_MAX_OID);
lastoid[0] = -1;
for (;;)
{
request_id ++;
if (!_cupsSNMPWrite(fd, address, version, community,
CUPS_ASN1_GET_NEXT_REQUEST, request_id,
packet.object_name))
{
DEBUG_puts("5_cupsSNMPWalk: Returning -1");
return (-1);
}
if (!_cupsSNMPRead(fd, &packet, timeout))
{
DEBUG_puts("5_cupsSNMPWalk: Returning -1");
return (-1);
}
if (!_cupsSNMPIsOIDPrefixed(&packet, prefix) ||
_cupsSNMPIsOID(&packet, lastoid))
{
DEBUG_printf(("5_cupsSNMPWalk: Returning %d", count));
return (count);
}
if (packet.error || packet.error_status)
{
DEBUG_printf(("5_cupsSNMPWalk: Returning %d", count > 0 ? count : -1));
return (count > 0 ? count : -1);
}
_cupsSNMPCopyOID(lastoid, packet.object_name, CUPS_SNMP_MAX_OID);
count ++;
(*cb)(&packet, data);
}
}
static void
scan_devices(int ipv4, /* I - SNMP IPv4 socket */
int ipv6) /* I - SNMP IPv6 socket */
{
int fd, /* File descriptor for this address */
busy; /* Are we busy processing something? */
char *address, /* Current address */
*community; /* Current community */
fd_set input; /* Input set for select() */
struct timeval timeout; /* Timeout for select() */
time_t endtime; /* End time for scan */
http_addrlist_t *addrs, /* List of addresses */
*addr; /* Current address */
snmp_cache_t *device; /* Current device */
char temp[1024]; /* Temporary address string */
gettimeofday(&StartTime, NULL);
/*
* First send all of the broadcast queries...
*/
for (address = (char *)cupsArrayFirst(Addresses);
address;
address = (char *)cupsArrayNext(Addresses))
{
if (!strcmp(address, "@LOCAL"))
addrs = get_interface_addresses(NULL);
else if (!strncmp(address, "@IF(", 4))
{
char ifname[255]; /* Interface name */
strlcpy(ifname, address + 4, sizeof(ifname));
if (ifname[0])
ifname[strlen(ifname) - 1] = '\0';
addrs = get_interface_addresses(ifname);
}
else
addrs = httpAddrGetList(address, AF_UNSPEC, NULL);
if (!addrs)
{
fprintf(stderr, "ERROR: Unable to scan \"%s\"!\n", address);
continue;
}
for (community = (char *)cupsArrayFirst(Communities);
community;
community = (char *)cupsArrayNext(Communities))
{
debug_printf("DEBUG: Scanning for devices in \"%s\" via \"%s\"...\n",
community, address);
for (addr = addrs; addr; addr = addr->next)
{
#ifdef AF_INET6
if (httpAddrFamily(&(addr->addr)) == AF_INET6)
fd = ipv6;
else
#endif /* AF_INET6 */
fd = ipv4;
debug_printf("DEBUG: Sending get request to %s...\n",
httpAddrString(&(addr->addr), temp, sizeof(temp)));
_cupsSNMPWrite(fd, &(addr->addr), CUPS_SNMP_VERSION_1, community,
CUPS_ASN1_GET_REQUEST, DEVICE_TYPE, DeviceTypeOID);
}
}
httpAddrFreeList(addrs);
}
/*
* Then read any responses that come in over the next 3 seconds...
*/
endtime = time(NULL) + MaxRunTime;
FD_ZERO(&input);
while (time(NULL) < endtime)
{
timeout.tv_sec = 2;
timeout.tv_usec = 0;
FD_SET(ipv4, &input);
if (ipv6 >= 0)
FD_SET(ipv6, &input);
fd = ipv4 > ipv6 ? ipv4 : ipv6;
if (select(fd + 1, &input, NULL, NULL, &timeout) < 0)
{
fprintf(stderr, "ERROR: %.3f select() for %d/%d failed: %s\n", run_time(),
ipv4, ipv6, strerror(errno));
break;
}
busy = 0;
if (FD_ISSET(ipv4, &input))
{
read_snmp_response(ipv4);
busy = 1;
}
if (ipv6 >= 0 && FD_ISSET(ipv6, &input))
{
read_snmp_response(ipv6);
busy = 1;
}
if (!busy)
{
/*
* List devices with complete information...
*/
int sent_something = 0;
for (device = (snmp_cache_t *)cupsArrayFirst(Devices);
device;
device = (snmp_cache_t *)cupsArrayNext(Devices))
if (!device->sent && device->info && device->make_and_model)
{
if (device->uri)
list_device(device);
else
probe_device(device);
device->sent = sent_something = 1;
}
if (!sent_something)
break;
}
}
debug_printf("DEBUG: %.3f Scan complete!\n", run_time());
}
int /* O - -1 on error, 0 on success */
backendNetworkSideCB(
int print_fd, /* I - Print file or -1 */
int device_fd, /* I - Device file or -1 */
int snmp_fd, /* I - SNMP socket */
http_addr_t *addr, /* I - Address of device */
int use_bc) /* I - Use back-channel data? */
{
cups_sc_command_t command; /* Request command */
cups_sc_status_t status; /* Request/response status */
char data[65536]; /* Request/response data */
int datalen; /* Request/response data size */
const char *device_id; /* 1284DEVICEID env var */
datalen = sizeof(data);
if (cupsSideChannelRead(&command, &status, data, &datalen, 1.0))
return (-1);
switch (command)
{
case CUPS_SC_CMD_DRAIN_OUTPUT :
/*
* Our sockets disable the Nagle algorithm and data is sent immediately.
*/
if (device_fd < 0)
status = CUPS_SC_STATUS_NOT_IMPLEMENTED;
else if (backendDrainOutput(print_fd, device_fd))
status = CUPS_SC_STATUS_IO_ERROR;
else
status = CUPS_SC_STATUS_OK;
datalen = 0;
break;
case CUPS_SC_CMD_GET_BIDI :
status = CUPS_SC_STATUS_OK;
data[0] = (char)use_bc;
datalen = 1;
break;
case CUPS_SC_CMD_SNMP_GET :
case CUPS_SC_CMD_SNMP_GET_NEXT :
fprintf(stderr, "DEBUG: CUPS_SC_CMD_SNMP_%s: %d (%s)\n",
command == CUPS_SC_CMD_SNMP_GET ? "GET" : "GET_NEXT", datalen,
data);
if (datalen < 2)
{
status = CUPS_SC_STATUS_BAD_MESSAGE;
datalen = 0;
break;
}
if (snmp_fd >= 0)
{
char *dataptr; /* Pointer into data */
cups_snmp_t packet; /* Packet from printer */
const char *snmp_value; /* CUPS_SNMP_VALUE env var */
if ((snmp_value = getenv("CUPS_SNMP_VALUE")) != NULL)
{
const char *snmp_count; /* CUPS_SNMP_COUNT env var */
int count; /* Repetition count */
if ((snmp_count = getenv("CUPS_SNMP_COUNT")) != NULL)
{
if ((count = atoi(snmp_count)) <= 0)
count = 1;
}
else
count = 1;
for (dataptr = data + strlen(data) + 1;
count > 0 && dataptr < (data + sizeof(data) - 1);
count --, dataptr += strlen(dataptr))
strlcpy(dataptr, snmp_value, sizeof(data) - (size_t)(dataptr - data));
fprintf(stderr, "DEBUG: Returning %s %s\n", data,
data + strlen(data) + 1);
status = CUPS_SC_STATUS_OK;
datalen = (int)(dataptr - data);
break;
}
if (!_cupsSNMPStringToOID(data, packet.object_name, CUPS_SNMP_MAX_OID))
{
status = CUPS_SC_STATUS_BAD_MESSAGE;
datalen = 0;
break;
}
status = CUPS_SC_STATUS_IO_ERROR;
datalen = 0;
if (_cupsSNMPWrite(snmp_fd, addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(),
command == CUPS_SC_CMD_SNMP_GET ?
CUPS_ASN1_GET_REQUEST :
CUPS_ASN1_GET_NEXT_REQUEST, 1,
packet.object_name))
{
if (_cupsSNMPRead(snmp_fd, &packet, 1.0))
{
size_t i; /* Looping var */
if (!_cupsSNMPOIDToString(packet.object_name, data, sizeof(data)))
{
fputs("DEBUG: Bad OID returned!\n", stderr);
break;
}
datalen = (int)strlen(data) + 1;
dataptr = data + datalen;
switch (packet.object_type)
{
case CUPS_ASN1_BOOLEAN :
snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%d", packet.object_value.boolean);
datalen += (int)strlen(dataptr);
break;
case CUPS_ASN1_INTEGER :
snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%d",
packet.object_value.integer);
datalen += (int)strlen(dataptr);
break;
case CUPS_ASN1_BIT_STRING :
case CUPS_ASN1_OCTET_STRING :
if (packet.object_value.string.num_bytes < (sizeof(data) - (size_t)(dataptr - data)))
i = packet.object_value.string.num_bytes;
else
i = sizeof(data) - (size_t)(dataptr - data);
memcpy(dataptr, packet.object_value.string.bytes, i);
datalen += (int)i;
break;
case CUPS_ASN1_OID :
_cupsSNMPOIDToString(packet.object_value.oid, dataptr,
sizeof(data) - (size_t)(dataptr - data));
datalen += (int)strlen(dataptr);
break;
case CUPS_ASN1_HEX_STRING :
for (i = 0;
i < packet.object_value.string.num_bytes &&
dataptr < (data + sizeof(data) - 3);
i ++, dataptr += 2)
sprintf(dataptr, "%02X", packet.object_value.string.bytes[i]);
datalen += (int)strlen(dataptr);
break;
case CUPS_ASN1_COUNTER :
snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%u", packet.object_value.counter);
datalen += (int)strlen(dataptr);
break;
case CUPS_ASN1_GAUGE :
snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%u", packet.object_value.gauge);
datalen += (int)strlen(dataptr);
break;
case CUPS_ASN1_TIMETICKS :
snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%u", packet.object_value.timeticks);
datalen += (int)strlen(dataptr);
break;
default :
fprintf(stderr, "DEBUG: Unknown OID value type %02X.\n", packet.object_type);
case CUPS_ASN1_NULL_VALUE :
dataptr[0] = '\0';
break;
}
fprintf(stderr, "DEBUG: Returning %s %s\n", data, data + datalen);
status = CUPS_SC_STATUS_OK;
}
else
fputs("DEBUG: SNMP read error...\n", stderr);
}
else
fputs("DEBUG: SNMP write error...\n", stderr);
break;
}
status = CUPS_SC_STATUS_NOT_IMPLEMENTED;
datalen = 0;
break;
case CUPS_SC_CMD_GET_CONNECTED :
status = CUPS_SC_STATUS_OK;
data[0] = device_fd != -1;
datalen = 1;
break;
case CUPS_SC_CMD_GET_DEVICE_ID :
if (snmp_fd >= 0)
{
cups_snmp_t packet; /* Packet from printer */
static const int ppmPrinterIEEE1284DeviceId[] =
{ CUPS_OID_ppmPrinterIEEE1284DeviceId,1,-1 };
status = CUPS_SC_STATUS_IO_ERROR;
datalen = 0;
if (_cupsSNMPWrite(snmp_fd, addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(),
CUPS_ASN1_GET_REQUEST, 1,
ppmPrinterIEEE1284DeviceId))
{
if (_cupsSNMPRead(snmp_fd, &packet, 1.0) &&
packet.object_type == CUPS_ASN1_OCTET_STRING)
{
strlcpy(data, (char *)packet.object_value.string.bytes,
sizeof(data));
datalen = (int)strlen(data);
status = CUPS_SC_STATUS_OK;
}
}
break;
}
if ((device_id = getenv("1284DEVICEID")) != NULL)
{
strlcpy(data, device_id, sizeof(data));
datalen = (int)strlen(data);
status = CUPS_SC_STATUS_OK;
break;
}
default :
status = CUPS_SC_STATUS_NOT_IMPLEMENTED;
datalen = 0;
break;
}
return (cupsSideChannelWrite(command, status, data, datalen, 1.0));
}
static int /* O - 1 on success, 0 on error */
show_oid(int fd, /* I - SNMP socket */
const char *community, /* I - Community name */
http_addr_t *addr, /* I - Address to query */
const char *s, /* I - OID to query */
int walk) /* I - Walk OIDs? */
{
int i; /* Looping var */
int oid[CUPS_SNMP_MAX_OID]; /* OID */
cups_snmp_t packet; /* SNMP packet */
char temp[1024]; /* Temporary OID string */
if (!_cupsSNMPStringToOID(s, oid, sizeof(oid) / sizeof(oid[0])))
{
puts("testsnmp: Bad OID");
return (0);
}
if (walk)
{
printf("_cupsSNMPWalk(%s): ", _cupsSNMPOIDToString(oid, temp, sizeof(temp)));
if (_cupsSNMPWalk(fd, addr, CUPS_SNMP_VERSION_1, community, oid, 5.0,
print_packet, NULL) < 0)
{
printf("FAIL (%s)\n", strerror(errno));
return (0);
}
}
else
{
printf("_cupsSNMPWrite(%s): ", _cupsSNMPOIDToString(oid, temp, sizeof(temp)));
if (!_cupsSNMPWrite(fd, addr, CUPS_SNMP_VERSION_1, community,
CUPS_ASN1_GET_REQUEST, 1, oid))
{
printf("FAIL (%s)\n", strerror(errno));
return (0);
}
puts("PASS");
fputs("_cupsSNMPRead(5.0): ", stdout);
if (!_cupsSNMPRead(fd, &packet, 5.0))
{
puts("FAIL (timeout)");
return (0);
}
if (!_cupsSNMPIsOID(&packet, oid))
{
printf("FAIL (bad OID %d", packet.object_name[0]);
for (i = 1; packet.object_name[i] >= 0; i ++)
printf(".%d", packet.object_name[i]);
puts(")");
return (0);
}
if (packet.error)
{
printf("FAIL (%s)\n", packet.error);
return (0);
}
puts("PASS");
print_packet(&packet, NULL);
}
return (1);
}
static void
backend_init_supplies(
int snmp_fd, /* I - SNMP socket */
http_addr_t *addr) /* I - Printer address */
{
int i, /* Looping var */
type; /* Current marker type */
cups_file_t *cachefile; /* Cache file */
const char *cachedir; /* CUPS_CACHEDIR value */
char addrstr[1024], /* Address string */
cachefilename[1024], /* Cache filename */
description[CUPS_SNMP_MAX_STRING],
/* Device description string */
value[CUPS_MAX_SUPPLIES * (CUPS_SNMP_MAX_STRING * 4 + 3)],
/* Value string */
*ptr, /* Pointer into value string */
*name_ptr; /* Pointer into name string */
cups_snmp_t packet; /* SNMP response packet */
ppd_file_t *ppd; /* PPD file for this queue */
ppd_attr_t *ppdattr; /* cupsSNMPSupplies attribute */
static const char * const types[] = /* Supply types */
{
"other",
"unknown",
"toner",
"waste-toner",
"ink",
"ink-cartridge",
"ink-ribbon",
"waste-ink",
"opc",
"developer",
"fuser-oil",
"solid-wax",
"ribbon-wax",
"waste-wax",
"fuser",
"corona-wire",
"fuser-oil-wick",
"cleaner-unit",
"fuser-cleaning-pad",
"transfer-unit",
"toner-cartridge",
"fuser-oiler",
"water",
"waste-water",
"glue-water-additive",
"waste-paper",
"binding-supply",
"banding-supply",
"stitching-wire",
"shrink-wrap",
"paper-wrap",
"staples",
"inserts",
"covers"
};
/*
* Reset state information...
*/
current_addr = *addr;
current_state = -1;
num_supplies = -1;
charset = -1;
memset(supplies, 0, sizeof(supplies));
/*
* See if we should be getting supply levels via SNMP...
*/
if ((ppd = ppdOpenFile(getenv("PPD"))) == NULL ||
((ppdattr = ppdFindAttr(ppd, "cupsSNMPSupplies", NULL)) != NULL &&
ppdattr->value && _cups_strcasecmp(ppdattr->value, "true")))
{
ppdClose(ppd);
return;
}
if ((ppdattr = ppdFindAttr(ppd, "cupsSNMPQuirks", NULL)) != NULL)
{
if (!_cups_strcasecmp(ppdattr->value, "capacity"))
quirks |= CUPS_SNMP_CAPACITY;
}
ppdClose(ppd);
/*
* Get the device description...
*/
if (!_cupsSNMPWrite(snmp_fd, addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), CUPS_ASN1_GET_REQUEST, 1,
hrDeviceDescr))
return;
if (!_cupsSNMPRead(snmp_fd, &packet, CUPS_SUPPLY_TIMEOUT) ||
packet.object_type != CUPS_ASN1_OCTET_STRING)
{
strlcpy(description, "Unknown", sizeof(description));
num_supplies = 0;
}
else
strlcpy(description, (char *)packet.object_value.string.bytes,
sizeof(description));
fprintf(stderr, "DEBUG2: hrDeviceDesc=\"%s\"\n", description);
/*
* See if we have already queried this device...
*/
httpAddrString(addr, addrstr, sizeof(addrstr));
if ((cachedir = getenv("CUPS_CACHEDIR")) == NULL)
cachedir = CUPS_CACHEDIR;
snprintf(cachefilename, sizeof(cachefilename), "%s/%s.snmp", cachedir,
addrstr);
if ((cachefile = cupsFileOpen(cachefilename, "r")) != NULL)
{
/*
* Yes, read the cache file:
*
* 3 num_supplies charset
* device description
* supply structures...
*/
if (cupsFileGets(cachefile, value, sizeof(value)))
{
if (sscanf(value, "3 %d%d", &num_supplies, &charset) == 2 &&
num_supplies <= CUPS_MAX_SUPPLIES &&
cupsFileGets(cachefile, value, sizeof(value)))
{
if (!strcmp(description, value))
cupsFileRead(cachefile, (char *)supplies,
(size_t)num_supplies * sizeof(backend_supplies_t));
else
{
num_supplies = -1;
charset = -1;
}
}
else
{
num_supplies = -1;
charset = -1;
}
}
cupsFileClose(cachefile);
}
/*
* If the cache information isn't correct, scan for supplies...
*/
if (charset < 0)
{
/*
* Get the configured character set...
*/
int oid[CUPS_SNMP_MAX_OID]; /* OID for character set */
if (!_cupsSNMPWrite(snmp_fd, ¤t_addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), CUPS_ASN1_GET_REQUEST, 1,
prtGeneralCurrentLocalization))
return;
if (!_cupsSNMPRead(snmp_fd, &packet, CUPS_SUPPLY_TIMEOUT) ||
packet.object_type != CUPS_ASN1_INTEGER)
{
fprintf(stderr,
"DEBUG: prtGeneralCurrentLocalization type is %x, expected %x!\n",
packet.object_type, CUPS_ASN1_INTEGER);
return;
}
fprintf(stderr, "DEBUG2: prtGeneralCurrentLocalization=%d\n",
packet.object_value.integer);
_cupsSNMPCopyOID(oid, prtLocalizationCharacterSet, CUPS_SNMP_MAX_OID);
oid[prtLocalizationCharacterSetOffset - 2] = packet.object_value.integer;
if (!_cupsSNMPWrite(snmp_fd, ¤t_addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), CUPS_ASN1_GET_REQUEST, 1,
oid))
return;
if (!_cupsSNMPRead(snmp_fd, &packet, CUPS_SUPPLY_TIMEOUT) ||
packet.object_type != CUPS_ASN1_INTEGER)
{
fprintf(stderr,
"DEBUG: prtLocalizationCharacterSet type is %x, expected %x!\n",
packet.object_type, CUPS_ASN1_INTEGER);
return;
}
fprintf(stderr, "DEBUG2: prtLocalizationCharacterSet=%d\n",
packet.object_value.integer);
charset = packet.object_value.integer;
}
if (num_supplies < 0)
{
/*
* Walk the printer configuration information...
*/
_cupsSNMPWalk(snmp_fd, ¤t_addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), prtMarkerSuppliesEntry,
CUPS_SUPPLY_TIMEOUT, backend_walk_cb, NULL);
}
/*
* Save the cached information...
*/
if (num_supplies < 0)
num_supplies = 0;
if ((cachefile = cupsFileOpen(cachefilename, "w")) != NULL)
{
cupsFilePrintf(cachefile, "3 %d %d\n", num_supplies, charset);
cupsFilePrintf(cachefile, "%s\n", description);
if (num_supplies > 0)
cupsFileWrite(cachefile, (char *)supplies,
(size_t)num_supplies * sizeof(backend_supplies_t));
cupsFileClose(cachefile);
}
if (num_supplies <= 0)
return;
/*
* Get the colors...
*/
for (i = 0; i < num_supplies; i ++)
strlcpy(supplies[i].color, "none", sizeof(supplies[i].color));
_cupsSNMPWalk(snmp_fd, ¤t_addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), prtMarkerColorantValue,
CUPS_SUPPLY_TIMEOUT, backend_walk_cb, NULL);
/*
* Output the marker-colors attribute...
*/
for (i = 0, ptr = value; i < num_supplies; i ++, ptr += strlen(ptr))
{
if (i)
*ptr++ = ',';
strlcpy(ptr, supplies[i].color, sizeof(value) - (size_t)(ptr - value));
}
fprintf(stderr, "ATTR: marker-colors=%s\n", value);
/*
* Output the marker-names attribute (the double quoting is necessary to deal
* with embedded quotes and commas in the marker names...)
*/
for (i = 0, ptr = value; i < num_supplies; i ++)
{
if (i)
*ptr++ = ',';
*ptr++ = '\'';
*ptr++ = '\"';
for (name_ptr = supplies[i].name; *name_ptr;)
{
if (*name_ptr == '\\' || *name_ptr == '\"' || *name_ptr == '\'')
{
*ptr++ = '\\';
*ptr++ = '\\';
*ptr++ = '\\';
}
*ptr++ = *name_ptr++;
}
*ptr++ = '\"';
*ptr++ = '\'';
}
*ptr = '\0';
fprintf(stderr, "ATTR: marker-names=%s\n", value);
/*
* Output the marker-types attribute...
*/
for (i = 0, ptr = value; i < num_supplies; i ++, ptr += strlen(ptr))
{
if (i)
*ptr++ = ',';
type = supplies[i].type;
if (type < CUPS_TC_other || type > CUPS_TC_covers)
strlcpy(ptr, "unknown", sizeof(value) - (size_t)(ptr - value));
else
strlcpy(ptr, types[type - CUPS_TC_other], sizeof(value) - (size_t)(ptr - value));
}
fprintf(stderr, "ATTR: marker-types=%s\n", value);
}
int /* O - 0 on success, -1 on error */
backendSNMPSupplies(
int snmp_fd, /* I - SNMP socket */
http_addr_t *addr, /* I - Printer address */
int *page_count, /* O - Page count */
int *printer_state) /* O - Printer state */
{
if (!httpAddrEqual(addr, ¤t_addr))
backend_init_supplies(snmp_fd, addr);
else if (num_supplies > 0)
_cupsSNMPWalk(snmp_fd, ¤t_addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), prtMarkerSuppliesLevel,
CUPS_SUPPLY_TIMEOUT, backend_walk_cb, NULL);
if (page_count)
*page_count = -1;
if (printer_state)
*printer_state = -1;
if (num_supplies > 0)
{
int i, /* Looping var */
percent, /* Percent full */
new_state, /* New state value */
change_state, /* State change */
new_supply_state = 0; /* Supply state */
char value[CUPS_MAX_SUPPLIES * 4],
/* marker-levels value string */
*ptr; /* Pointer into value string */
cups_snmp_t packet; /* SNMP response packet */
/*
* Generate the marker-levels value string...
*/
for (i = 0, ptr = value; i < num_supplies; i ++, ptr += strlen(ptr))
{
if (supplies[i].max_capacity > 0 && supplies[i].level >= 0)
percent = 100 * supplies[i].level / supplies[i].max_capacity;
else if (supplies[i].level >= 0 && supplies[i].level <= 100 &&
(quirks & CUPS_SNMP_CAPACITY))
percent = supplies[i].level;
else
percent = 50;
if (supplies[i].sclass == CUPS_TC_receptacleThatIsFilled)
percent = 100 - percent;
if (percent <= 5)
{
switch (supplies[i].type)
{
case CUPS_TC_toner :
case CUPS_TC_tonerCartridge :
if (percent <= 1)
new_supply_state |= CUPS_TONER_EMPTY;
else
new_supply_state |= CUPS_TONER_LOW;
break;
case CUPS_TC_ink :
case CUPS_TC_inkCartridge :
case CUPS_TC_inkRibbon :
case CUPS_TC_solidWax :
case CUPS_TC_ribbonWax :
if (percent <= 1)
new_supply_state |= CUPS_MARKER_SUPPLY_EMPTY;
else
new_supply_state |= CUPS_MARKER_SUPPLY_LOW;
break;
case CUPS_TC_developer :
if (percent <= 1)
new_supply_state |= CUPS_DEVELOPER_EMPTY;
else
new_supply_state |= CUPS_DEVELOPER_LOW;
break;
case CUPS_TC_coronaWire :
case CUPS_TC_fuser :
case CUPS_TC_opc :
case CUPS_TC_transferUnit :
if (percent <= 1)
new_supply_state |= CUPS_OPC_LIFE_OVER;
else
new_supply_state |= CUPS_OPC_NEAR_EOL;
break;
#if 0 /* Because no two vendors report waste containers the same, disable SNMP reporting of same */
case CUPS_TC_wasteInk :
case CUPS_TC_wastePaper :
case CUPS_TC_wasteToner :
case CUPS_TC_wasteWater :
case CUPS_TC_wasteWax :
if (percent <= 1)
new_supply_state |= CUPS_WASTE_FULL;
else
new_supply_state |= CUPS_WASTE_ALMOST_FULL;
break;
#endif /* 0 */
case CUPS_TC_cleanerUnit :
case CUPS_TC_fuserCleaningPad :
if (percent <= 1)
new_supply_state |= CUPS_CLEANER_LIFE_OVER;
else
new_supply_state |= CUPS_CLEANER_NEAR_EOL;
break;
}
}
if (i)
*ptr++ = ',';
if ((supplies[i].max_capacity > 0 || (quirks & CUPS_SNMP_CAPACITY)) &&
supplies[i].level >= 0)
snprintf(ptr, sizeof(value) - (size_t)(ptr - value), "%d", percent);
else
strlcpy(ptr, "-1", sizeof(value) - (size_t)(ptr - value));
}
fprintf(stderr, "ATTR: marker-levels=%s\n", value);
if (supply_state < 0)
change_state = 0xffff;
else
change_state = supply_state ^ new_supply_state;
fprintf(stderr, "DEBUG: new_supply_state=%x, change_state=%x\n",
new_supply_state, change_state);
for (i = 0;
i < (int)(sizeof(supply_states) / sizeof(supply_states[0]));
i ++)
if (change_state & supply_states[i].bit)
{
fprintf(stderr, "STATE: %c%s\n",
(new_supply_state & supply_states[i].bit) ? '+' : '-',
supply_states[i].keyword);
}
supply_state = new_supply_state;
/*
* Get the current printer status bits...
*/
if (!_cupsSNMPWrite(snmp_fd, addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), CUPS_ASN1_GET_REQUEST, 1,
hrPrinterDetectedErrorState))
return (-1);
if (!_cupsSNMPRead(snmp_fd, &packet, CUPS_SUPPLY_TIMEOUT) ||
packet.object_type != CUPS_ASN1_OCTET_STRING)
return (-1);
if (packet.object_value.string.num_bytes == 2)
new_state = (packet.object_value.string.bytes[0] << 8) |
packet.object_value.string.bytes[1];
else if (packet.object_value.string.num_bytes == 1)
new_state = (packet.object_value.string.bytes[0] << 8);
else
new_state = 0;
if (current_state < 0)
change_state = 0xffff;
else
change_state = current_state ^ new_state;
fprintf(stderr, "DEBUG: new_state=%x, change_state=%x\n", new_state,
change_state);
for (i = 0;
i < (int)(sizeof(printer_states) / sizeof(printer_states[0]));
i ++)
if (change_state & printer_states[i].bit)
{
fprintf(stderr, "STATE: %c%s\n",
(new_state & printer_states[i].bit) ? '+' : '-',
printer_states[i].keyword);
}
current_state = new_state;
/*
* Get the current printer state...
*/
if (printer_state)
{
if (!_cupsSNMPWrite(snmp_fd, addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), CUPS_ASN1_GET_REQUEST, 1,
hrPrinterStatus))
return (-1);
if (!_cupsSNMPRead(snmp_fd, &packet, CUPS_SUPPLY_TIMEOUT) ||
packet.object_type != CUPS_ASN1_INTEGER)
return (-1);
*printer_state = packet.object_value.integer;
}
/*
* Get the current page count...
*/
if (page_count)
{
if (!_cupsSNMPWrite(snmp_fd, addr, CUPS_SNMP_VERSION_1,
_cupsSNMPDefaultCommunity(), CUPS_ASN1_GET_REQUEST, 1,
prtMarkerLifeCount))
return (-1);
if (!_cupsSNMPRead(snmp_fd, &packet, CUPS_SUPPLY_TIMEOUT) ||
packet.object_type != CUPS_ASN1_COUNTER)
return (-1);
*page_count = packet.object_value.counter;
}
return (0);
}
else
return (-1);
}