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-rw-r--r--backend/pixma_bjnp.c2558
1 files changed, 0 insertions, 2558 deletions
diff --git a/backend/pixma_bjnp.c b/backend/pixma_bjnp.c
deleted file mode 100644
index 5a9932e..0000000
--- a/backend/pixma_bjnp.c
+++ /dev/null
@@ -1,2558 +0,0 @@
-/* SANE - Scanner Access Now Easy.
-
- Copyright (C) 2008 2012 by Louis Lagendijk
-
- This file is part of the SANE package.
-
- SANE is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- SANE is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- License for more details.
-
- You should have received a copy of the GNU General Public License
- along with sane; see the file COPYING. If not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- As a special exception, the authors of SANE give permission for
- additional uses of the libraries contained in this release of SANE.
-
- The exception is that, if you link a SANE library with other files
- to produce an executable, this does not by itself cause the
- resulting executable to be covered by the GNU General Public
- License. Your use of that executable is in no way restricted on
- account of linking the SANE library code into it.
-
- This exception does not, however, invalidate any other reasons why
- the executable file might be covered by the GNU General Public
- License.
-
- If you submit changes to SANE to the maintainers to be included in
- a subsequent release, you agree by submitting the changes that
- those changes may be distributed with this exception intact.
-
- If you write modifications of your own for SANE, it is your choice
- whether to permit this exception to apply to your modifications.
- If you do not wish that, delete this exception notice.
-*/
-#undef BACKEND_NAME
-#define BACKEND_NAME bjnp
-
-#include "../include/sane/config.h"
-#include "../include/sane/sane.h"
-
-/*
- * Standard types etc
- */
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-#include <unistd.h>
-#include <stdio.h>
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#endif
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-
-/*
- * networking stuff
- */
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <net/if.h>
-#ifdef HAVE_IFADDRS_H
-#include <ifaddrs.h>
-#endif
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-#ifdef HAVE_PWD_H
-#include <pwd.h>
-#endif
-#include <errno.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
-#include "pixma_bjnp_private.h"
-#include "pixma_bjnp.h"
-/* #include "pixma_rename.h" */
-#include "pixma.h"
-#include "pixma_common.h"
-
-#ifndef SSIZE_MAX
-# define SSIZE_MAX LONG_MAX
-#endif
-
-/* static data */
-static bjnp_device_t device[BJNP_NO_DEVICES];
-static int bjnp_no_devices = 0;
-
-/*
- * Private functions
- */
-
-static void
-u8tohex (char *string, const uint8_t *value, int len )
-{
- int i;
- int x;
- const char hdigit[16] =
- { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
- 'e', 'f'
- };
- for (i = 0; i < len; i++)
- {
- x = value[i];
- string[ 2 * i ] = hdigit[(x >> 4) & 0xf];
- string[ 2 * i + 1] = hdigit[x & 0xf];
- }
- string[2 * len ] = '\0';
-}
-
-static void
-u32tohex (uint32_t x, char *str)
-{
- uint8_t uint8[4];
- uint8[0] = (uint8_t)(x >> 24);
- uint8[1] = (uint8_t)(x >> 16);
- uint8[2] = (uint8_t)(x >> 8);
- uint8[3] = (uint8_t)x ;
- u8tohex(str, uint8, 4);
-}
-
-static void
-bjnp_hexdump (int level, const void *d_, unsigned len)
-{
- const uint8_t *d = (const uint8_t *) (d_);
- unsigned ofs, c, plen;
- char line[100]; /* actually only 1+8+1+8*3+1+8*3+1 = 61 bytes needed */
-
- if (level > DBG_LEVEL)
- return;
- if (level == DBG_LEVEL)
- /* if debuglevel == exact match and buffer contains more than 3 lines, print 2 lines + .... */
- plen = (len > 64) ? 32: len;
- else
- plen = len;
- ofs = 0;
- while (ofs < plen)
- {
- char *p;
- line[0] = ' ';
- u32tohex (ofs, line + 1);
- line[9] = ':';
- p = line + 10;
- for (c = 0; c != 16 && (ofs + c) < plen; c++)
- {
- u8tohex (p, d + ofs + c, 1);
- p[2] = ' ';
- p += 3;
- if (c == 7)
- {
- p[0] = ' ';
- p++;
- }
- }
- p[0] = '\0';
- bjnp_dbg (level, "%s\n", line);
- ofs += c;
- }
- if (len > plen)
- bjnp_dbg(level, "......\n");
-}
-
-static int sa_is_equal( const bjnp_sockaddr_t * sa1, const bjnp_sockaddr_t * sa2)
-{
- if ((sa1 == NULL) || (sa2 == NULL) )
- return 0;
-
- if (sa1->addr.sa_family == sa2-> addr.sa_family)
- {
- if( sa1 -> addr.sa_family == AF_INET)
- {
- if ( (sa1->ipv4.sin_port == sa2->ipv4.sin_port) &&
- (sa1->ipv4.sin_addr.s_addr == sa2->ipv4.sin_addr.s_addr))
- {
- return 1;
- }
- }
-#ifdef ENABLE_IPV6
- else if (sa1 -> addr.sa_family == AF_INET6 )
- {
- if ( (sa1-> ipv6.sin6_port == sa2->ipv6.sin6_port) &&
- (memcmp(&(sa1->ipv6.sin6_addr), &(sa2->ipv6.sin6_addr), sizeof(struct in6_addr)) == 0))
- {
- return 1;
- }
- }
-#endif
- }
- return 0;
-}
-
-static int
-sa_size( const bjnp_sockaddr_t *sa)
-{
- switch (sa -> addr.sa_family)
- {
- case AF_INET:
- return (sizeof(struct sockaddr_in) );
-#ifdef ENABLE_IPV6
- case AF_INET6:
- return (sizeof(struct sockaddr_in6) );
-#endif
- default:
- /* should not occur */
- return sizeof( bjnp_sockaddr_t );
- }
-}
-
-static int
-get_protocol_family( const bjnp_sockaddr_t *sa)
-{
- switch (sa -> addr.sa_family)
- {
- case AF_INET:
- return PF_INET;
- break;
-#ifdef ENABLE_IPV6
- case AF_INET6:
- return PF_INET6;
- break;
-#endif
- default:
- /* should not occur */
- return -1;
- }
-}
-
-static void
-get_address_info ( const bjnp_sockaddr_t *addr, char * addr_string, int *port)
-{
- char tmp_addr[BJNP_HOST_MAX];
- if ( addr->addr.sa_family == AF_INET)
- {
- inet_ntop( AF_INET, &(addr -> ipv4.sin_addr.s_addr), addr_string, BJNP_HOST_MAX);
- *port = ntohs (addr->ipv4.sin_port);
- }
-#ifdef ENABLE_IPV6
- else if (addr->addr.sa_family == AF_INET6)
- {
- inet_ntop( AF_INET6, addr -> ipv6.sin6_addr.s6_addr, tmp_addr, sizeof(tmp_addr) );
-
- if (IN6_IS_ADDR_LINKLOCAL( &(addr -> ipv6.sin6_addr) ) )
- sprintf(addr_string, "[%s%%%d]", tmp_addr, addr -> ipv6.sin6_scope_id);
-
- *port = ntohs (addr->ipv6.sin6_port);
- }
-#endif
- else
- {
- /* unknown address family, should not occur */
- strcpy(addr_string, "Unknown address family");
- *port = 0;
- }
-}
-
-static int
-parse_IEEE1284_to_model (char *scanner_id, char *model)
-{
-/*
- * parses the IEEE1284 ID of the scanner to retrieve make and model
- * of the scanner
- * Returns: 0 = not found
- * 1 = found, model is set
- */
-
- char s[BJNP_IEEE1284_MAX];
- char *tok;
-
- strncpy (s, scanner_id, BJNP_IEEE1284_MAX);
- s[BJNP_IEEE1284_MAX - 1] = '\0';
- model[0] = '\0';
-
- tok = strtok (s, ";");
- while (tok != NULL)
- {
- /* MDL contains make and model */
-
- if (strncmp (tok, "MDL:", 4) == 0)
- {
- strncpy (model, tok + 4, BJNP_IEEE1284_MAX);
- model[BJNP_IEEE1284_MAX -1] = '\0';
- return 1;
- }
- tok = strtok (NULL, ";");
- }
- return 0;
-}
-
-static int
-charTo2byte (char *d, const char *s, int len)
-{
- /*
- * copy ASCII string to UTF-16 unicode string
- * len is length of destination buffer
- * Returns: number of characters copied
- */
-
- int done = 0;
- int copied = 0;
- int i;
-
- len = len / 2;
- for (i = 0; i < len; i++)
- {
- d[2 * i] = '\0';
- if (s[i] == '\0')
- {
- done = 1;
- }
- if (done == 0)
- {
- d[2 * i + 1] = s[i];
- copied++;
- }
- else
- d[2 * i + 1] = '\0';
- }
- return copied;
-}
-
-static bjnp_protocol_defs_t *get_protocol_by_method( char *method)
-{
- int i = 0;
- while ( bjnp_protocol_defs[i].method_string != NULL)
- {
- if (strcmp(method, bjnp_protocol_defs[i].method_string) == 0)
- {
- return &bjnp_protocol_defs[i];
- }
- i++;
- }
- return NULL;
-}
-
-static bjnp_protocol_defs_t *get_protocol_by_proto_string( char *proto_string)
-{
- int i = 0;
- while ( bjnp_protocol_defs[i].proto_string != NULL)
- {
- if (strncmp(proto_string, bjnp_protocol_defs[i].proto_string, 4) == 0)
- {
- return &bjnp_protocol_defs[i];
- }
- i++;
- }
- return NULL;
-}
-
-static char *
-getusername (void)
-{
- static char noname[] = "sane_pixma";
- struct passwd *pwdent;
-
-#ifdef HAVE_PWD_H
- if (((pwdent = getpwuid (geteuid ())) != NULL) && (pwdent->pw_name != NULL))
- return pwdent->pw_name;
-#endif
- return noname;
-}
-
-
-static char *
-determine_scanner_serial (const char *hostname, const char * mac_address, char *serial)
-{
- char *dot;
- char copy[BJNP_HOST_MAX];
-
- /* determine a "serial number" for the scanner */
- /* if available we use the hostname or ipv4 address of the printer */
- /* if we only have a literal ipv6 address, we use the mac-address */
-
- strcpy(copy, hostname);
- if (strlen (copy) >= SERIAL_MAX)
- {
- /* make the string fit into the serial */
- /* if this is a FQDN, not an ip-address, remove domain part of the name */
- if ((dot = strchr (copy, '.')) != NULL)
- {
- *dot = '\0';
- }
- }
- /* check if name is still to long. If so use the mac-address */
- if (strlen(copy) >= SERIAL_MAX)
- {
- strcpy(copy, mac_address);
- }
- strcpy( serial, copy );
- return serial;
-}
-
-static int
-bjnp_open_tcp (int devno)
-{
- int sock;
- int val;
- bjnp_sockaddr_t *addr = device[devno].addr;
- char host[BJNP_HOST_MAX];
- int port;
-
- get_address_info( addr, host, &port);
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_open_tcp: Setting up a TCP socket, dest: %s port %d\n",
- host, port ) );
-
- if ((sock = socket (get_protocol_family( addr ) , SOCK_STREAM, 0)) < 0)
- {
- PDBG (bjnp_dbg (LOG_CRIT, "bjnp_open_tcp: ERROR - Can not create socket: %s\n",
- strerror (errno)));
- return -1;
- }
-
- val = 1;
- setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof (val));
-
-#if 0
- val = 1;
- setsockopt (sock, SOL_SOCKET, SO_REUSEPORT, &val, sizeof (val));
-
- val = 1;
-#endif
-
- /*
- * Using TCP_NODELAY improves responsiveness, especially on systems
- * with a slow loopback interface...
- */
-
- val = 1;
- setsockopt (sock, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
-
-/*
- * Close this socket when starting another process...
- */
-
- fcntl (sock, F_SETFD, FD_CLOEXEC);
-
- if (connect
- (sock, &(addr->addr), sa_size(device[devno].addr) )!= 0)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "bjnp_open_tcp: ERROR - Can not connect to scanner: %s\n",
- strerror (errno)));
- return -1;
- }
- device[devno].tcp_socket = sock;
- return 0;
-}
-
-static int
-split_uri (const char *devname, char *method, char *host, char *port,
- char *args)
-{
- char copy[1024];
- char *start;
- char next;
- int i;
-
- strncpy (copy, devname, 1024);
- copy[1023] = '\0';
- start = copy;
-
-/*
- * retrieve method
- */
- i = 0;
- while ((start[i] != '\0') && (start[i] != ':'))
- {
- i++;
- }
-
- if (((strncmp (start + i, "://", 3) != 0)) || (i > BJNP_METHOD_MAX -1 ))
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "split_uri: ERROR - Can not find method in %s (offset %d)\n",
- devname, i));
- return -1;
- }
-
- start[i] = '\0';
- strcpy (method, start);
- start = start + i + 3;
-
-/*
- * retrieve host
- */
-
- if (start[0] == '[')
- {
- /* literal IPv6 address */
-
- char *end_of_address = strchr(start, ']');
-
- if ( ( end_of_address == NULL) ||
- ( (end_of_address[1] != ':') && (end_of_address[1] != '/' ) && (end_of_address[1] != '\0' )) ||
- ( (end_of_address - start) >= BJNP_HOST_MAX ) )
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "split_uri: ERROR - Can not find hostname or address in %s\n", devname));
- return -1;
- }
- next = end_of_address[1];
- *end_of_address = '\0';
- strcpy(host, start + 1);
- start = end_of_address + 2;
- }
- else
- {
- i = 0;
- while ((start[i] != '\0') && (start[i] != '/') && (start[i] != ':'))
- {
- i++;
- }
- next = start[i];
- start[i] = '\0';
- if ((i == 0) || (i >= BJNP_HOST_MAX ) )
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "split_uri: ERROR - Can not find hostname or address in %s\n", devname));
- return -1;
- }
- strcpy (host, start);
- start = start + i +1;
- }
-
-
-/*
- * retrieve port number
- */
-
- if (next != ':')
- strcpy(port, "");
- else
- {
- char *end_of_port = strchr(start, '/');
- if (end_of_port == NULL)
- {
- next = '\0';
- }
- else
- {
- next = *end_of_port;
- *end_of_port = '\0';
- }
- if ((strlen(start) == 0) || (strlen(start) >= BJNP_PORT_MAX ) )
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "split_uri: ERROR - Can not find port in %s (have \"%s\")\n", devname, start));
- return -1;
- }
- strcpy(port, start);
- start = end_of_port + 1;
- }
-
-/*
- * Retrieve arguments
- */
-
- if (next == '/')
- {
- i = strlen(start);
- if ( i >= BJNP_ARGS_MAX)
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "split_uri: ERROR - Argument string too long in %s\n", devname));
- }
- strcpy (args, start);
- }
- else
- strcpy (args, "");
- return 0;
-}
-
-
-
-static void
-set_cmd_from_string (char* protocol_string, struct BJNP_command *cmd, char cmd_code, int payload_len)
-{
- /*
- * Set command buffer with command code, session_id and length of payload
- * Returns: sequence number of command
- */
-
- strncpy (cmd->BJNP_id, protocol_string, sizeof (cmd->BJNP_id));
- cmd->dev_type = BJNP_CMD_SCAN;
- cmd->cmd_code = cmd_code;
- cmd->unknown1 = htons (0);
-
- /* device not yet opened, use 0 for serial and session) */
- cmd->seq_no = htons (0);
- cmd->session_id = htons (0);
- cmd->payload_len = htonl (payload_len);
-}
-
-static void
-set_cmd_for_dev (int devno, struct BJNP_command *cmd, char cmd_code, int payload_len)
-{
- /*
- * Set command buffer with command code, session_id and length of payload
- * Returns: sequence number of command
- */
-
- strncpy (cmd->BJNP_id, device[devno].protocol_string, sizeof (cmd->BJNP_id));
- cmd->dev_type = BJNP_CMD_SCAN;
- cmd->cmd_code = cmd_code;
- cmd->unknown1 = htons (0);
- cmd->seq_no = htons (++(device[devno].serial));
- cmd->session_id = (cmd_code == CMD_UDP_POLL ) ? 0 : htons (device[devno].session_id);
- device[devno].last_cmd = cmd_code;
- cmd->payload_len = htonl (payload_len);
-}
-
-static int
-bjnp_setup_udp_socket ( const int dev_no )
-{
- /*
- * Setup a udp socket for the given device
- * Returns the socket or -1 in case of error
- */
-
- int sockfd;
- char addr_string[256];
- int port;
- bjnp_sockaddr_t * addr = device[dev_no].addr;
-
- get_address_info( addr, addr_string, &port);
-
- PDBG (bjnp_dbg (LOG_DEBUG, "setup_udp_socket: Setting up a UDP socket, dest: %s port %d\n",
- addr_string, port ) );
-
- if ((sockfd = socket (get_protocol_family( addr ), SOCK_DGRAM, IPPROTO_UDP)) == -1)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "setup_udp_socket: ERROR - can not open socket - %s\n",
- strerror (errno)));
- return -1;
- }
-
- if (connect
- (sockfd, &(device[dev_no].addr->addr), sa_size(device[dev_no].addr) )!= 0)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "setup_udp_socket: ERROR - connect failed- %s\n",
- strerror (errno)));
- close(sockfd);
- return -1;
- }
- return sockfd;
-}
-
-static int
-udp_command (const int dev_no, char *command, int cmd_len, char *response,
- int resp_len)
-{
- /*
- * send udp command to given device and recieve the response`
- * returns: the legth of the response or -1
- */
- int sockfd;
- struct timeval timeout;
- int result;
- int try, attempt;
- int numbytes;
- fd_set fdset;
- struct BJNP_command *resp = (struct BJNP_command *) response;
- struct BJNP_command *cmd = (struct BJNP_command *) command;
-
- if ( (sockfd = bjnp_setup_udp_socket(dev_no) ) == -1 )
- {
- PDBG (bjnp_dbg( LOG_CRIT, "udp_command: ERROR - Can not setup socket\n") );
- return -1;
- }
-
- for (try = 0; try < BJNP_UDP_RETRY_MAX; try++)
- {
- if ((numbytes = send (sockfd, command, cmd_len, 0)) != cmd_len)
- {
- PDBG (bjnp_dbg
- (LOG_NOTICE, "udp_command: ERROR - Sent %d bytes, expected %d\n",
- numbytes, cmd_len));
- continue;
- }
-
- attempt = 0;
-
- /* wait for data to be received, ignore signals being received */
- /* skip late udp responses (they have an incorrect sequence number */
- do
- {
- FD_ZERO (&fdset);
- FD_SET (sockfd, &fdset);
-
- timeout.tv_sec = device[dev_no].bjnp_timeout /1000;
- timeout.tv_usec = device[dev_no].bjnp_timeout %1000;
- }
- while (((result =
- select (sockfd + 1, &fdset, NULL, NULL, &timeout)) <= 0)
- && (errno == EINTR) && (attempt++ < BJNP_MAX_SELECT_ATTEMPTS)
- && resp-> seq_no != cmd->seq_no);
-
- if (result <= 0)
- {
- PDBG (bjnp_dbg
- (LOG_NOTICE, "udp_command: ERROR - select failed: %s\n",
- result == 0 ? "timed out" : strerror (errno)));
- continue;
- }
-
- if ((numbytes = recv (sockfd, response, resp_len, 0)) == -1)
- {
- PDBG (bjnp_dbg
- (LOG_NOTICE, "udp_command: ERROR - recv failed: %s",
- strerror (errno)));
- continue;
- }
- close(sockfd);
- return numbytes;
- }
-
- /* no response even after retry */
-
- close(sockfd);
- PDBG (bjnp_dbg
- (LOG_CRIT, "udp_command: ERROR - no data received (timeout = %d)\n", device[dev_no].bjnp_timeout ) );
- return -1;
-}
-
-static int
-get_scanner_id (const int dev_no, char *model)
-{
- /*
- * get scanner identity
- * Sets model (make and model)
- * Return 0 on success, -1 in case of errors
- */
-
- struct BJNP_command cmd;
- struct IDENTITY *id;
- char scanner_id[BJNP_IEEE1284_MAX];
- int resp_len;
- char resp_buf[BJNP_RESP_MAX];
- int id_len;
-
- /* set defaults */
-
- strcpy (model, "Unidentified scanner");
-
- set_cmd_for_dev (dev_no, &cmd, CMD_UDP_GET_ID, 0);
-
- PDBG (bjnp_dbg (LOG_DEBUG2, "get_scanner_id: Get scanner identity\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, (char *) &cmd,
- sizeof (struct BJNP_command)));
-
- if ( ( resp_len = udp_command (dev_no, (char *) &cmd, sizeof (struct BJNP_command),
- resp_buf, BJNP_RESP_MAX) ) < (int)sizeof(struct BJNP_command) )
- {
- PDBG (bjnp_dbg (LOG_DEBUG, "get_scanner_id: ERROR - Failed to retrieve scanner identity:\n"));
- return -1;
- }
- PDBG (bjnp_dbg (LOG_DEBUG2, "get_scanner_id: scanner identity:\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, resp_buf, resp_len));
-
- id = (struct IDENTITY *) resp_buf;
-
- if (device[dev_no].protocol == PROTOCOL_BJNP)
- {
- id_len = MIN(ntohl( id-> cmd.payload_len ) - sizeof(id-> payload.bjnp.id_len), BJNP_IEEE1284_MAX);
- strncpy(scanner_id, id->payload.bjnp.id, id_len);
- scanner_id[id_len] = '\0';
- }
- else
- {
- id_len = MIN(ntohl( id-> cmd.payload_len ), BJNP_IEEE1284_MAX);
- strncpy(scanner_id, id->payload.mfnp.id, id_len);
- scanner_id[id_len] = '\0';
- }
- PDBG (bjnp_dbg (LOG_INFO, "get_scanner_id: Scanner identity string = %s - length = %d\n", scanner_id, id_len));
-
- /* get make&model from IEEE1284 id */
-
- if (model != NULL)
- {
- parse_IEEE1284_to_model (scanner_id, model);
- PDBG (bjnp_dbg (LOG_INFO, "get_scanner_id: Scanner model = %s\n", model));
- }
- return 0;
-}
-
-static int
-get_scanner_name(const bjnp_sockaddr_t *scanner_sa, char *host)
-{
- /*
- * Parse identify command responses to ip-address
- * and hostname. Return qulity of the address
- */
-
- struct addrinfo *results;
- struct addrinfo *result;
- char ip_address[BJNP_HOST_MAX];
- int port;
- int error;
- int match = 0;
- int level;
- char service[64];
-
-#ifdef ENABLE_IPV6
- if ( ( scanner_sa -> addr.sa_family == AF_INET6 ) &&
- ( IN6_IS_ADDR_LINKLOCAL( &(scanner_sa -> ipv6.sin6_addr ) ) ) )
- level = BJNP_ADDRESS_IS_LINK_LOCAL;
- else
-#endif
- level = BJNP_ADDRESS_IS_GLOBAL;
-
- get_address_info( scanner_sa, ip_address, &port );
-
- /* do reverse name lookup, if hostname can not be found return ip-address */
-
- if( (error = getnameinfo( &(scanner_sa -> addr) , sa_size( scanner_sa),
- host, BJNP_HOST_MAX , NULL, 0, NI_NAMEREQD) ) != 0 )
- {
- PDBG (bjnp_dbg(LOG_INFO, "get_scanner_name: Name for %s not found : %s\n",
- ip_address, gai_strerror(error) ) );
- strcpy(host, ip_address);
- return level;
- }
- else
- {
- sprintf(service, "%d", port);
- /* some buggy routers return rubbish if reverse lookup fails, so
- * we do a forward lookup on the received name to see if the result matches */
-
- if (getaddrinfo(host , service, NULL, &results) == 0)
- {
- result = results;
-
- while (result != NULL)
- {
- if(sa_is_equal( scanner_sa, (bjnp_sockaddr_t *)result-> ai_addr))
- {
- /* found match, good */
- PDBG (bjnp_dbg (LOG_INFO,
- "get_scanner_name: Forward lookup for %s succeeded, using as hostname\n", host));
- match = 1;
- level = BJNP_ADDRESS_HAS_FQDN;
- break;
- }
- result = result-> ai_next;
- }
- freeaddrinfo(results);
-
- if (match != 1)
- {
- PDBG (bjnp_dbg (LOG_INFO,
- "get_scanner_name: Forward lookup for %s succeeded, IP-address does not match, using IP-address %s instead\n",
- host, ip_address));
- strcpy (host, ip_address);
- }
- }
- else
- {
- /* forward lookup failed, use ip-address */
- PDBG ( bjnp_dbg (LOG_INFO, "get_scanner_name: Forward lookup of %s failed, using IP-address", ip_address));
- strcpy (host, ip_address);
- }
- }
- return level;
-}
-
-static int
-get_port_from_sa(const bjnp_sockaddr_t scanner_sa)
-{
-#ifdef ENABLE_IPV6
- if ( scanner_sa.addr.sa_family == AF_INET6 )
- {
- return ntohs(scanner_sa.ipv6.sin6_port);
- }
- else
-#endif
- if ( scanner_sa.addr.sa_family == AF_INET )
- {
- return ntohs(scanner_sa.ipv4.sin_port);
- }
- return -1;
-}
-
-static int create_broadcast_socket( const bjnp_sockaddr_t * local_addr )
-{
- int sockfd = -1;
- int broadcast = 1;
- int ipv6_v6only = 1;
-
-
- if ((sockfd = socket (local_addr-> addr.sa_family, SOCK_DGRAM, 0)) == -1)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "create_broadcast_socket: ERROR - can not open socket - %s",
- strerror (errno)));
- return -1;
- }
-
- /* Set broadcast flag on socket */
-
- if (setsockopt
- (sockfd, SOL_SOCKET, SO_BROADCAST, (const char *) &broadcast,
- sizeof (broadcast)) != 0)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "create_broadcast_socket: ERROR - setting socket option SO_BROADCAST failed - %s",
- strerror (errno)));
- close (sockfd);
- return -1;
- };
-
- /* For an IPv6 socket, bind to v6 only so a V6 socket can co-exist with a v4 socket */
- if ( (local_addr -> addr.sa_family == AF_INET6) && ( setsockopt
- (sockfd, IPPROTO_IPV6, IPV6_V6ONLY, (const char *) &ipv6_v6only,
- sizeof (ipv6_v6only)) != 0) )
- {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "create_broadcast_socket: ERROR - setting socket option IPV6_V6ONLY failed - %s",
- strerror (errno)));
- close (sockfd);
- return -1;
- };
-
- if (bind
- (sockfd, &(local_addr->addr),
- (socklen_t) sa_size( local_addr)) != 0)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "create_broadcast_socket: ERROR - bind socket to local address failed - %s\n",
- strerror (errno)));
- close (sockfd);
- return -1;
- }
- return sockfd;
-}
-
-static int
-prepare_socket(const char *if_name, const bjnp_sockaddr_t *local_sa,
- const bjnp_sockaddr_t *broadcast_sa, bjnp_sockaddr_t * dest_sa)
-{
- /*
- * Prepare a socket for broadcast or multicast
- * Input:
- * if_name: the name of the interface
- * local_sa: local address to use
- * broadcast_sa: broadcast address to use, if NULL we use all hosts
- * dest_sa: (write) where to return destination address of broadcast
- * retuns: open socket or -1
- */
-
- int socket = -1;
- bjnp_sockaddr_t local_sa_copy;
-
- if ( local_sa == NULL )
- {
- PDBG (bjnp_dbg (LOG_DEBUG,
- "prepare_socket: %s is not a valid IPv4 interface, skipping...\n",
- if_name));
- return -1;
- }
-
- memset( &local_sa_copy, 0, sizeof(local_sa_copy) );
- memcpy( &local_sa_copy, local_sa, sa_size(local_sa) );
-
- switch( local_sa_copy.addr.sa_family )
- {
- case AF_INET:
- {
- local_sa_copy.ipv4.sin_port = htons(BJNP_PORT_SCAN);
-
- if (local_sa_copy.ipv4.sin_addr.s_addr == htonl (INADDR_LOOPBACK) )
- {
- /* not a valid interface */
-
- PDBG (bjnp_dbg (LOG_DEBUG,
- "prepare_socket: %s is not a valid IPv4 interface, skipping...\n",
- if_name));
- return -1;
- }
-
-
- /* send broadcasts to the broadcast address of the interface */
-
- memcpy(dest_sa, broadcast_sa, sa_size(dest_sa) );
-
- /* we fill port when we send the broadcast */
- dest_sa -> ipv4.sin_port = htons(0);
-
- if ( (socket = create_broadcast_socket( &local_sa_copy) ) != -1)
- {
- PDBG (bjnp_dbg (LOG_INFO, "prepare_socket: %s is IPv4 capable, sending broadcast, socket = %d\n",
- if_name, socket));
- }
- else
- {
- PDBG (bjnp_dbg (LOG_INFO, "prepare_socket: ERROR - %s is IPv4 capable, but failed to create a socket.\n",
- if_name));
- return -1;
- }
- }
- break;
-#ifdef ENABLE_IPV6
- case AF_INET6:
- {
- local_sa_copy.ipv6.sin6_port = htons(BJNP_PORT_SCAN);
-
- if (IN6_IS_ADDR_LOOPBACK( &(local_sa_copy.ipv6.sin6_addr) ) )
- {
- /* not a valid interface */
-
- PDBG (bjnp_dbg (LOG_DEBUG,
- "prepare_socket: %s is not a valid IPv6 interface, skipping...\n",
- if_name));
- return -1;
- }
- else
- {
- dest_sa -> ipv6.sin6_family = AF_INET6;
-
- /* We fill port when we send the broadcast */
- dest_sa -> ipv6.sin6_port = htons(0);
-
- inet_pton(AF_INET6, "ff02::1", dest_sa -> ipv6.sin6_addr.s6_addr);
- if ( (socket = create_broadcast_socket( &local_sa_copy ) ) != -1)
- {
- PDBG (bjnp_dbg (LOG_INFO, "prepare_socket: %s is IPv6 capable, sending broadcast, socket = %d\n",
- if_name, socket));
- }
- else
- {
- PDBG (bjnp_dbg (LOG_INFO, "prepare_socket: ERROR - %s is IPv6 capable, but failed to create a socket.\n",
- if_name));
- return -1;
- }
- }
- }
- break;
-#endif
-
- default:
- socket = -1;
- }
- return socket;
-}
-
-static int
-bjnp_send_broadcast (int sockfd, const bjnp_sockaddr_t * broadcast_addr, int port,
- struct BJNP_command cmd, int size)
-{
- int num_bytes;
- bjnp_sockaddr_t dest_addr;
-
- /* set address to send packet to broadcast address of interface, */
- /* with port set to the destination port */
-
- memcpy(&dest_addr, broadcast_addr, sizeof(dest_addr));
- if( dest_addr.addr.sa_family == AF_INET)
- {
- dest_addr.ipv4.sin_port = htons(port);
- }
-#ifdef ENABLE_IPV6
- if( dest_addr.addr.sa_family == AF_INET6)
- {
- dest_addr.ipv6.sin6_port = htons(port);
- }
-#endif
-
- if ((num_bytes = sendto (sockfd, &cmd, size, 0,
- &(dest_addr.addr),
- sa_size( broadcast_addr)) ) != size)
- {
- PDBG (bjnp_dbg (LOG_INFO,
- "bjnp_send_broadcast: Socket: %d: ERROR - sent only %x = %d bytes of packet, error = %s\n",
- sockfd, num_bytes, num_bytes, strerror (errno)));
- /* not allowed, skip this interface */
-
- return -1;
- }
- return sockfd;
-}
-
-static void
-bjnp_finish_job (int devno)
-{
-/*
- * Signal end of scanjob to scanner
- */
-
- char resp_buf[BJNP_RESP_MAX];
- int resp_len;
- struct BJNP_command cmd;
-
- set_cmd_for_dev (devno, &cmd, CMD_UDP_CLOSE, 0);
-
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_finish_job: Finish scanjob\n"));
- PDBG (bjnp_hexdump
- (LOG_DEBUG2, (char *) &cmd, sizeof (struct BJNP_command)));
- resp_len =
- udp_command (devno, (char *) &cmd, sizeof (struct BJNP_command), resp_buf,
- BJNP_RESP_MAX);
-
- if (resp_len != sizeof (struct BJNP_command))
- {
- PDBG (bjnp_dbg
- (LOG_INFO,
- "bjnp_finish_job: ERROR - Received %d characters on close scanjob command, expected %d\n",
- resp_len, (int) sizeof (struct BJNP_command)));
- return;
- }
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_finish_job: Finish scanjob response\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, resp_buf, resp_len));
-
-}
-
-#ifdef PIXMA_BJNP_USE_STATUS
-static int
-bjnp_poll_scanner (int devno, char type,char *hostname, char *user, SANE_Byte *status, int size)
-{
-/*
- * send details of user to the scanner
- */
-
- char cmd_buf[BJNP_CMD_MAX];
- char resp_buf[BJNP_RESP_MAX];
- int resp_len;
- int len = 0; /* payload length */
- int buf_len; /* length of the whole command buffer */
- struct POLL_DETAILS *poll;
- struct POLL_RESPONSE *response;
- char user_host[256];
- time_t t;
- int user_host_len;
-
- poll = (struct POLL_DETAILS *) cmd_buf;
- memset( poll, 0, sizeof( struct POLL_DETAILS));
- memset( &resp_buf, 0, sizeof( resp_buf) );
-
-
- /* create payload */
- poll->type = htons(type);
-
- user_host_len = sizeof( poll -> extensions.type2.user_host);
- snprintf(user_host, (user_host_len /2) ,"%s %s", user, hostname);
- user_host[ user_host_len /2 + 1] = '\0';
-
- switch( type) {
- case 0:
- len = 80;
- break;
- case 1:
- charTo2byte(poll->extensions.type1.user_host, user_host, user_host_len);
- len = 80;
- break;
- case 2:
- poll->extensions.type2.dialog = htonl(device[devno].dialog);
- charTo2byte(poll->extensions.type2.user_host, user_host, user_host_len);
- poll->extensions.type2.unknown_1 = htonl(0x14);
- poll->extensions.type2.unknown_2 = htonl(0x10);
- t = time (NULL);
- strftime (poll->extensions.type2.ascii_date,
- sizeof (poll->extensions.type2.ascii_date),
- "%Y%m%d%H%M%S", localtime (&t));
- len = 116;
- break;
- case 5:
- poll->extensions.type5.dialog = htonl(device[devno].dialog);
- charTo2byte(poll->extensions.type5.user_host, user_host, user_host_len);
- poll->extensions.type5.unknown_1 = htonl(0x14);
- poll->extensions.type5.key = htonl(device[devno].status_key);
- len = 100;
- break;
- default:
- PDBG (bjnp_dbg (LOG_INFO, "bjnp_poll_scanner: unknown packet type: %d\n", type));
- return -1;
- };
- /* we can only now set the header as we now know the length of the payload */
- set_cmd_for_dev (devno, (struct BJNP_command *) cmd_buf, CMD_UDP_POLL,
- len);
-
- buf_len = len + sizeof(struct BJNP_command);
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_poll_scanner: Poll details (type %d)\n", type));
- PDBG (bjnp_hexdump (LOG_DEBUG2, cmd_buf,
- buf_len));
-
- resp_len = udp_command (devno, cmd_buf, buf_len, resp_buf, BJNP_RESP_MAX);
-
- if (resp_len > 0)
- {
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_poll_scanner: Poll details response:\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, resp_buf, resp_len));
- response = (struct POLL_RESPONSE *) resp_buf;
-
- device[devno].dialog = ntohl( response -> dialog );
-
- if ( response -> result[3] == 1 )
- {
- return BJNP_RESTART_POLL;
- }
- if ( (response -> result[2] & 0x80) != 0)
- {
- memcpy( status, response->status, size);
- PDBG( bjnp_dbg(LOG_INFO, "bjnp_poll_scanner: received button status!\n"));
- PDBG (bjnp_hexdump( LOG_DEBUG2, status, size ));
- device[devno].status_key = ntohl( response -> key );
- return size;
- }
- }
- return 0;
-}
-#endif
-
-static void
-bjnp_send_job_details (int devno, char *hostname, char *user, char *title)
-{
-/*
- * send details of scanjob to scanner
- */
-
- char cmd_buf[BJNP_CMD_MAX];
- char resp_buf[BJNP_RESP_MAX];
- int resp_len;
- struct JOB_DETAILS *job;
- struct BJNP_command *resp;
-
- /* send job details command */
-
- set_cmd_for_dev (devno, (struct BJNP_command *) cmd_buf, CMD_UDP_JOB_DETAILS,
- sizeof (*job) - sizeof (struct BJNP_command));
-
- /* create payload */
-
- job = (struct JOB_DETAILS *) (cmd_buf);
- charTo2byte (job->unknown, "", sizeof (job->unknown));
- charTo2byte (job->hostname, hostname, sizeof (job->hostname));
- charTo2byte (job->username, user, sizeof (job->username));
- charTo2byte (job->jobtitle, title, sizeof (job->jobtitle));
-
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_send_job_details: Job details\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, cmd_buf,
- (sizeof (struct BJNP_command) + sizeof (*job))));
-
- resp_len = udp_command (devno, cmd_buf,
- sizeof (struct JOB_DETAILS), resp_buf,
- BJNP_RESP_MAX);
-
- if (resp_len > 0)
- {
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_send_job_details: Job details response:\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, resp_buf, resp_len));
- resp = (struct BJNP_command *) resp_buf;
- device[devno].session_id = ntohs (resp->session_id);
- }
-}
-
-static int
-bjnp_get_scanner_mac_address ( int devno, char *mac_address )
-{
-/*
- * send discover to scanner
- */
-
- char cmd_buf[BJNP_CMD_MAX];
- char resp_buf[BJNP_RESP_MAX];
- int resp_len;
- struct DISCOVER_RESPONSE *resp = (struct DISCOVER_RESPONSE * )&resp_buf;;
-
- /* send job details command */
-
- set_cmd_for_dev (devno, (struct BJNP_command *) cmd_buf, CMD_UDP_DISCOVER, 0);
- resp_len = udp_command (devno, cmd_buf,
- sizeof (struct BJNP_command), resp_buf,
- BJNP_RESP_MAX);
-
- if (resp_len > 0)
- {
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_get_scanner_mac_address: Discover response:\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, resp_buf, resp_len));
- u8tohex( mac_address, resp -> mac_addr, sizeof( resp -> mac_addr ) );
- return 0;
- }
- return -1;
-}
-
-static int
-bjnp_write (int devno, const SANE_Byte * buf, size_t count)
-{
-/*
- * This function writes TCP data to the scanner.
- * Returns: number of bytes written to the scanner
- */
- int sent_bytes;
- int terrno;
- struct SCAN_BUF bjnp_buf;
-
- if (device[devno].scanner_data_left)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "bjnp_write: ERROR - scanner data left = 0x%lx = %ld\n",
- (unsigned long) device[devno].scanner_data_left,
- (unsigned long) device[devno].scanner_data_left));
- }
- /* set BJNP command header */
-
- set_cmd_for_dev (devno, (struct BJNP_command *) &bjnp_buf, CMD_TCP_SEND, count);
- memcpy (bjnp_buf.scan_data, buf, count);
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_write: sending 0x%lx = %ld bytes\n",
- (unsigned long) count, (unsigned long) count);
- PDBG (bjnp_hexdump (LOG_DEBUG2, (char *) &bjnp_buf,
- sizeof (struct BJNP_command) + count)));
-
- if ((sent_bytes =
- send (device[devno].tcp_socket, &bjnp_buf,
- sizeof (struct BJNP_command) + count, 0)) <
- (ssize_t) (sizeof (struct BJNP_command) + count))
- {
- /* return result from write */
- terrno = errno;
- PDBG (bjnp_dbg (LOG_CRIT, "bjnp_write: ERROR - Could not send data!\n"));
- errno = terrno;
- return sent_bytes;
- }
- /* correct nr of bytes sent for length of command */
-
- else if (sent_bytes != (int) (sizeof (struct BJNP_command) + count))
- {
- errno = EIO;
- return -1;
- }
- return count;
-}
-
-static int
-bjnp_send_read_request (int devno)
-{
-/*
- * This function reads responses from the scanner.
- * Returns: 0 on success, else -1
- *
- */
- int sent_bytes;
- int terrno;
- struct BJNP_command bjnp_buf;
-
- if (device[devno].scanner_data_left)
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "bjnp_send_read_request: ERROR - scanner data left = 0x%lx = %ld\n",
- (unsigned long) device[devno].scanner_data_left,
- (unsigned long) device[devno].scanner_data_left));
-
- /* set BJNP command header */
-
- set_cmd_for_dev (devno, (struct BJNP_command *) &bjnp_buf, CMD_TCP_REQ, 0);
-
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_send_read_req sending command\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, (char *) &bjnp_buf,
- sizeof (struct BJNP_command)));
-
- if ((sent_bytes =
- send (device[devno].tcp_socket, &bjnp_buf, sizeof (struct BJNP_command),
- 0)) < 0)
- {
- /* return result from write */
- terrno = errno;
- PDBG (bjnp_dbg
- (LOG_CRIT, "bjnp_send_read_request: ERROR - Could not send data!\n"));
- errno = terrno;
- return -1;
- }
- return 0;
-}
-
-static SANE_Status
-bjnp_recv_header (int devno, size_t *payload_size )
-{
-/*
- * This function receives the response header to bjnp commands.
- * devno device number
- * size: return value for data size returned by scanner
- * Returns:
- * SANE_STATUS_IO_ERROR when any IO error occurs
- * SANE_STATUS_GOOD in case no errors were encountered
- */
- struct BJNP_command resp_buf;
- fd_set input;
- struct timeval timeout;
- int recv_bytes;
- int terrno;
- int result;
- int fd;
- int attempt;
-
- PDBG (bjnp_dbg
- (LOG_DEBUG, "bjnp_recv_header: receiving response header\n") );
- fd = device[devno].tcp_socket;
-
- *payload_size = 0;
- attempt = 0;
- do
- {
- /* wait for data to be received, ignore signals being received */
- FD_ZERO (&input);
- FD_SET (fd, &input);
-
- timeout.tv_sec = device[devno].bjnp_timeout /1000;
- timeout.tv_usec = device[devno].bjnp_timeout %1000;
- }
- while ( ( (result = select (fd + 1, &input, NULL, NULL, &timeout)) <= 0) &&
- (errno == EINTR) && (attempt++ < BJNP_MAX_SELECT_ATTEMPTS));
-
- if (result < 0)
- {
- terrno = errno;
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_header: ERROR - could not read response header (select): %s!\n",
- strerror (terrno)));
- errno = terrno;
- return SANE_STATUS_IO_ERROR;
- }
- else if (result == 0)
- {
- terrno = errno;
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_header: ERROR - could not read response header (select timed out after %d ms)!\n",
- device[devno].bjnp_timeout ) );
- errno = terrno;
- return SANE_STATUS_IO_ERROR;
- }
-
- /* get response header */
-
- if ((recv_bytes =
- recv (fd, (char *) &resp_buf,
- sizeof (struct BJNP_command),
- 0)) != sizeof (struct BJNP_command))
- {
- terrno = errno;
- if (recv_bytes == 0)
- {
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_header: ERROR - (recv) Scanner closed the TCP-connection!\n"));
- } else {
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_header: ERROR - (recv) could not read response header, received %d bytes!\n",
- recv_bytes));
- PDBG (bjnp_dbg
- (LOG_CRIT, "bjnp_recv_header: ERROR - (recv) error: %s!\n",
- strerror (terrno)));
- }
- errno = terrno;
- return SANE_STATUS_IO_ERROR;
- }
-
- if (resp_buf.cmd_code != device[devno].last_cmd)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "bjnp_recv_header: ERROR - Received response has cmd code %d, expected %d\n",
- resp_buf.cmd_code, device[devno].last_cmd));
- return SANE_STATUS_IO_ERROR;
- }
-
- if (ntohs (resp_buf.seq_no) != (uint16_t) device[devno].serial)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "bjnp_recv_header: ERROR - Received response has serial %d, expected %d\n",
- (int) ntohs (resp_buf.seq_no), (int) device[devno].serial));
- return SANE_STATUS_IO_ERROR;
- }
-
- /* got response header back, retrieve length of payload */
-
-
- *payload_size = ntohl (resp_buf.payload_len);
- PDBG (bjnp_dbg
- (LOG_DEBUG, "bjnp_recv_header: TCP response header(payload data = %ld bytes):\n",
- *payload_size) );
- PDBG (bjnp_hexdump
- (LOG_DEBUG2, (char *) &resp_buf, sizeof (struct BJNP_command)));
- return SANE_STATUS_GOOD;
-}
-
-static int
-bjnp_init_device_structure(int dn, bjnp_sockaddr_t *sa, bjnp_protocol_defs_t *protocol_defs, int min_timeout)
-{
- /* initialize device structure */
-
- char name[BJNP_HOST_MAX];
-
- device[dn].open = 0;
-#ifdef PIXMA_BJNP_USE_STATUS
- device[dn].polling_status = BJNP_POLL_STOPPED;
- device[dn].dialog = 0;
- device[dn].status_key = 0;
-#endif
- device[dn].protocol = protocol_defs->protocol_version;
- device[dn].protocol_string = protocol_defs->proto_string;
- device[dn].tcp_socket = -1;
-
- device[dn].addr = (bjnp_sockaddr_t *) malloc(sizeof ( bjnp_sockaddr_t) );
- memset( device[dn].addr, 0, sizeof( bjnp_sockaddr_t ) );
- memcpy(device[dn].addr, sa, sa_size((bjnp_sockaddr_t *)sa) );
- device[dn].address_level = get_scanner_name(sa, name);
- device[dn].session_id = 0;
- device[dn].serial = -1;
- device[dn].bjnp_timeout = min_timeout;
- device[dn].bjnp_min_timeout = min_timeout;
- device[dn].scanner_data_left = 0;
- device[dn].last_cmd = 0;
- device[dn].blocksize = BJNP_BLOCKSIZE_START;
- device[dn].last_block = 0;
- /* fill mac_address */
-
- if (bjnp_get_scanner_mac_address(dn, device[dn].mac_address) != 0 )
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "bjnp_init_device_structure: Cannot read mac address, skipping this scanner\n" ) );
- return -1;
- }
- return 0;
-}
-
-static void
-bjnp_free_device_structure( int dn)
-{
- if (device[dn].addr != NULL)
- {
- free (device[dn].addr );
- device[dn].addr = NULL;
- }
- device[dn].open = 0;
-}
-
-static SANE_Status
-bjnp_recv_data (int devno, SANE_Byte * buffer, size_t start_pos, size_t * len)
-{
-/*
- * This function receives the payload data.
- * NOTE: len may not exceed SSIZE_MAX (as that is max for recv)
- * len will be restricted to SSIZE_MAX to be sure
- * Returns: number of bytes of payload received from device
- */
-
- fd_set input;
- struct timeval timeout;
- ssize_t recv_bytes;
- int terrno;
- int result;
- int fd;
- int attempt;
-
- PDBG (bjnp_dbg
- (LOG_DEBUG, "bjnp_recv_data: read response payload (0x%lx bytes max), buffer: 0x%lx, start_pos: 0x%lx\n",
- (long) *len, (long) buffer, (long) start_pos));
-
-
- if (*len == 0)
- {
- /* nothing to do */
- PDBG (bjnp_dbg
- (LOG_DEBUG, "bjnp_recv_data: Nothing to do (%ld bytes requested)\n",
- (long) *len));
- return SANE_STATUS_GOOD;
- }
- else if ( *len > SSIZE_MAX )
- {
- PDBG (bjnp_dbg
- (LOG_DEBUG, "bjnp_recv_data: WARNING - requested block size (%ld) exceeds maximum, setting to maximum %ld\n",
- (long)*len, SSIZE_MAX));
- *len = SSIZE_MAX;
- }
-
- fd = device[devno].tcp_socket;
- attempt = 0;
- do
- {
- /* wait for data to be received, retry on a signal being received */
- FD_ZERO (&input);
- FD_SET (fd, &input);
- timeout.tv_sec = device[devno].bjnp_timeout /1000;
- timeout.tv_usec = device[devno].bjnp_timeout %1000;
- }
- while (((result = select (fd + 1, &input, NULL, NULL, &timeout)) <= 0) &&
- (errno == EINTR) && (attempt++ < BJNP_MAX_SELECT_ATTEMPTS));
-
- if (result < 0)
- {
- terrno = errno;
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_data: ERROR - could not read response payload (select failed): %s!\n",
- strerror (errno)));
- errno = terrno;
- *len = 0;
- return SANE_STATUS_IO_ERROR;
- }
- else if (result == 0)
- {
- terrno = errno;
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_data: ERROR - could not read response payload (select timed out after %d ms)!\n",
- device[devno].bjnp_timeout) );
- errno = terrno;
- *len = 0;
- return SANE_STATUS_IO_ERROR;
- }
-
- if ((recv_bytes = recv (fd, buffer + start_pos, *len, 0)) < 0)
- {
- terrno = errno;
- PDBG (bjnp_dbg (LOG_CRIT,
- "bjnp_recv_data: ERROR - could not read response payload (%ld + %ld = %ld) (recv): %s!\n",
- (long) buffer, (long) start_pos, (long) buffer + start_pos, strerror (errno)));
- errno = terrno;
- *len = 0;
- return SANE_STATUS_IO_ERROR;
- }
- PDBG (bjnp_dbg (LOG_DEBUG2, "bjnp_recv_data: Received TCP response payload (%ld bytes):\n",
- (unsigned long) recv_bytes));
- PDBG (bjnp_hexdump (LOG_DEBUG2, buffer, recv_bytes));
-
- *len = recv_bytes;
- return SANE_STATUS_GOOD;
-}
-
-static BJNP_Status
-bjnp_allocate_device (SANE_String_Const devname,
- SANE_Int * dn, char *resulting_host)
-{
- char method[BJNP_METHOD_MAX];
- char host[BJNP_HOST_MAX];
- char port[BJNP_PORT_MAX] = "";
- char args[BJNP_ARGS_MAX];
- bjnp_protocol_defs_t *protocol_defs;
- struct addrinfo *res, *cur;
- struct addrinfo hints;
- int result;
- int i;
- int min_timeout = BJNP_TIMEOUT_DEFAULT;
-
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_allocate_device(%s) %d\n", devname, bjnp_no_devices));
-
- if (split_uri (devname, method, host, port, args) != 0)
- {
- return BJNP_STATUS_INVAL;
- }
-
- if (strlen (args) > 0)
- {
- /* get device specific timeout if any */
-
- if (strncmp(args, "timeout=", strlen("timeout=")) == 0)
- {
- min_timeout = atoi(args + strlen("timeout="));
- if (min_timeout < BJNP_TIMEOUT_DEFAULT)
- min_timeout = BJNP_TIMEOUT_DEFAULT;
- } else {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "bjnp_allocate_device: ERROR - Unrecognized argument: %s\n",
- devname));
-
- return BJNP_STATUS_INVAL;
- }
- }
- if ( (protocol_defs = get_protocol_by_method(method)) == NULL)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "bjnp_allocate_device: ERROR - URI %s contains invalid method: %s\n",
- devname, method));
- return BJNP_STATUS_INVAL;
- }
-
- if (strlen(port) == 0)
- {
- sprintf( port, "%d", protocol_defs->default_port );
- }
-
- hints.ai_flags = 0;
-#ifdef ENABLE_IPV6
- hints.ai_family = AF_UNSPEC;
-#else
- hints.ai_family = AF_INET;
-#endif
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_protocol = 0;
- hints.ai_addrlen = 0;
- hints.ai_addr = NULL;
- hints.ai_canonname = NULL;
- hints.ai_next = NULL;
-
- result = getaddrinfo (host, port, &hints, &res );
- if (result != 0 )
- {
- PDBG (bjnp_dbg (LOG_CRIT, "bjnp_allocate_device: ERROR - Cannot resolve host: %s port %s\n", host, port));
- return SANE_STATUS_INVAL;
- }
-
- /* Check if a device number is already allocated to any of the scanner's addresses */
-
- cur = res;
- while( cur != NULL)
- {
- /* create a new device structure for this address */
-
- if (bjnp_no_devices == BJNP_NO_DEVICES)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT,
- "bjnp_allocate_device: WARNING - Too many devices, ran out of device structures, cannot add %s\n",
- devname));
- freeaddrinfo(res);
- return BJNP_STATUS_INVAL;
- }
- if (bjnp_init_device_structure( bjnp_no_devices, (bjnp_sockaddr_t *)cur -> ai_addr,
- protocol_defs, min_timeout) != 0)
- {
- /* giving up on this address, try next one if any */
- break;
- }
- for (i = 0; i < bjnp_no_devices; i++)
- {
-
- /* Check if found the scanner before, if so we use the best address
- * but still make sure the scanner is listed only once.
- * We check for matching addresses as wel as matching mac_addresses as
- * an IPv6 host can have multiple adresses */
-
- if ( strcmp( device[i].mac_address, device[bjnp_no_devices].mac_address ) == 0 )
- {
- if ( device[i].address_level < device[bjnp_no_devices].address_level )
- {
- /* use the new address instead as it is better */
- free (device[i].addr);
- device[i].addr = device[bjnp_no_devices].addr;
- device[bjnp_no_devices].addr = NULL;
- device[i].address_level = device[bjnp_no_devices].address_level;
- }
-
- /* check if new timeout value was defined (e.g. from sanei_bjnp_device_open)
- * if so, use new timout value */
-
- if (device[i].bjnp_min_timeout < device[bjnp_no_devices].bjnp_min_timeout)
- {
- /* use the longer timeout as requested */
- device[i].bjnp_timeout = device[bjnp_no_devices].bjnp_min_timeout;
- device[i].bjnp_min_timeout = device[bjnp_no_devices].bjnp_min_timeout;
- }
- freeaddrinfo(res);
- *dn = i;
- bjnp_free_device_structure( bjnp_no_devices);
- return BJNP_STATUS_ALREADY_ALLOCATED;
- }
- }
- cur = cur->ai_next;
- }
- freeaddrinfo(res);
-
- PDBG (bjnp_dbg (LOG_INFO, "bjnp_allocate_device: Scanner not yet in our list, added it: %s:%s\n", host, port));
-
- /* Commit new device structure */
-
- *dn = bjnp_no_devices;
- bjnp_no_devices++;
-
- /* return hostname if required */
-
- if (resulting_host != NULL)
- {
- strcpy (resulting_host, host);
- }
-
- return BJNP_STATUS_GOOD;
-}
-
-static void add_scanner(SANE_Int *dev_no,
- const char *uri,
- SANE_Status (*attach_bjnp)
- (SANE_String_Const devname,
- SANE_String_Const makemodel,
- SANE_String_Const serial,
- const struct pixma_config_t *
- const pixma_devices[]),
- const struct pixma_config_t *const pixma_devices[])
-
-{
- char scanner_host[BJNP_HOST_MAX];
- char serial[BJNP_SERIAL_MAX];
- char makemodel[BJNP_IEEE1284_MAX];
-
- /* Allocate device structure for scanner */
- switch (bjnp_allocate_device (uri, dev_no, scanner_host))
- {
- case BJNP_STATUS_GOOD:
- if (get_scanner_id (*dev_no, makemodel) != 0)
- {
- PDBG (bjnp_dbg (LOG_CRIT, "add_scanner: ERROR - Cannot read scanner make & model: %s\n",
- uri));
- }
- else
- {
- /*
- * inform caller of found scanner
- */
-
- determine_scanner_serial (scanner_host, device[*dev_no].mac_address, serial);
-
- attach_bjnp (uri, makemodel,
- serial, pixma_devices);
- PDBG (bjnp_dbg (LOG_NOTICE, "add_scanner: New scanner added: %s, serial %s, mac address: %s.\n",
- uri, serial, device[*dev_no].mac_address));
- }
- break;
- case BJNP_STATUS_ALREADY_ALLOCATED:
- PDBG (bjnp_dbg (LOG_NOTICE, "add_scanner: Scanner at %s was added before, good!\n",
- uri));
- break;
-
- case BJNP_STATUS_INVAL:
- PDBG (bjnp_dbg (LOG_NOTICE, "add_scanner: Scanner at %s can not be added\n",
- uri));
- break;
- }
-}
-
-int add_default_timeout(char *uri, int timeout, int max_len)
-{
- char method[BJNP_METHOD_MAX];
- char host[BJNP_HOST_MAX];
- char port_str[BJNP_PORT_MAX];
- char args[BJNP_HOST_MAX];
- int port;
-
- if (split_uri(uri, method, host, port_str, args ) != 0)
- {
- return -1;
- }
-
- port = atoi(port_str);
- if (port == 0)
- {
- port = 8612;
- }
-
- if (strstr(args, "timeout=") == NULL)
- {
- sprintf(args, "timeout=%d", timeout);
- }
-
- snprintf(uri, max_len -1, "%s://%s:%d/%s", method,host, port, args);
- return 0;
-}
-
-
-/*
- * Public functions
- */
-
-/** Initialize sanei_bjnp.
- *
- * Call this before any other sanei_bjnp function.
- */
-extern void
-sanei_bjnp_init (void)
-{
- DBG_INIT();
- bjnp_no_devices = 0;
-}
-
-/**
- * Find devices that implement the bjnp protocol
- *
- * The function attach is called for every device which has been found.
- *
- * @param attach attach function
- *
- * @return SANE_STATUS_GOOD - on success (even if no scanner was found)
- */
-extern SANE_Status
-sanei_bjnp_find_devices (const char **conf_devices,
- SANE_Status (*attach_bjnp)
- (SANE_String_Const devname,
- SANE_String_Const makemodel,
- SANE_String_Const serial,
- const struct pixma_config_t *
- const pixma_devices[]),
- const struct pixma_config_t *const pixma_devices[])
-{
- int numbytes = 0;
- struct BJNP_command cmd;
- unsigned char resp_buf[2048];
- struct DISCOVER_RESPONSE *disc_resp = ( struct DISCOVER_RESPONSE *) & resp_buf;
- int socket_fd[BJNP_SOCK_MAX];
- int no_sockets;
- int i;
- int j;
- int attempt;
- int last_socketfd = 0;
- fd_set fdset;
- fd_set active_fdset;
- struct timeval timeout;
- char scanner_host[256];
- char uri[256];
- int dev_no;
- int port;
- int timeout_default = BJNP_TIMEOUT_DEFAULT;
- bjnp_sockaddr_t broadcast_addr[BJNP_SOCK_MAX];
- bjnp_sockaddr_t scanner_sa;
- socklen_t socklen;
- bjnp_protocol_defs_t *protocol_defs;
-
- memset( broadcast_addr, 0, sizeof( broadcast_addr) );
- memset( &scanner_sa, 0 ,sizeof( scanner_sa ) );
- PDBG (bjnp_dbg (LOG_INFO, "sanei_bjnp_find_devices, pixma backend version: %d.%d.%d\n",
- PIXMA_VERSION_MAJOR, PIXMA_VERSION_MINOR, PIXMA_VERSION_BUILD));
- bjnp_no_devices = 0;
-
- for (i=0; i < BJNP_SOCK_MAX; i++)
- {
- socket_fd[i] = -1;
- }
-
- /* Add devices from config file */
-
- if (conf_devices[0] == NULL)
- PDBG (bjnp_dbg( LOG_DEBUG, "sanei_bjnp_find_devices: No devices specified in configuration file.\n" ) );
-
- for (i = 0; conf_devices[i] != NULL; i++)
- {
- if (strncmp(conf_devices[i], "bjnp-timeout=", strlen("bjnp-timeout="))== 0)
- {
- timeout_default = atoi(conf_devices[i] + strlen("bjnp-timeout=") );
- if (timeout_default < BJNP_TIMEOUT_DEFAULT)
- {
- timeout_default = BJNP_TIMEOUT_DEFAULT;
- }
- PDBG ( bjnp_dbg
- (LOG_DEBUG, "Set new default timeout value: %d ms.", timeout_default));
- continue;
- }
- PDBG (bjnp_dbg
- (LOG_DEBUG, "sanei_bjnp_find_devices: Adding scanner from pixma.conf: %s\n", conf_devices[i]));
- strncpy(uri, conf_devices[i], sizeof(uri));
- add_default_timeout(uri, timeout_default, sizeof(uri));
- add_scanner(&dev_no, uri, attach_bjnp, pixma_devices);
- }
- PDBG (bjnp_dbg
- (LOG_DEBUG,
- "sanei_bjnp_find_devices: Added all configured scanners, now do auto detection...\n"));
-
- /*
- * Send UDP DISCOVER to discover scanners and return the list of scanners found
- */
-
- FD_ZERO (&fdset);
-
- no_sockets = 0;
-#ifdef HAVE_IFADDRS_H
- {
- struct ifaddrs *interfaces = NULL;
- struct ifaddrs *interface;
- getifaddrs (&interfaces);
-
- /* create a socket for each suitable interface */
-
- interface = interfaces;
- while ((no_sockets < BJNP_SOCK_MAX) && (interface != NULL))
- {
- if ( ! (interface -> ifa_flags & IFF_POINTOPOINT) &&
- ( (socket_fd[no_sockets] =
- prepare_socket( interface -> ifa_name,
- (bjnp_sockaddr_t *) interface -> ifa_addr,
- (bjnp_sockaddr_t *) interface -> ifa_broadaddr,
- &broadcast_addr[no_sockets] ) ) != -1 ) )
- {
- /* track highest used socket for later use in select */
- if (socket_fd[no_sockets] > last_socketfd)
- {
- last_socketfd = socket_fd[no_sockets];
- }
- FD_SET (socket_fd[no_sockets], &fdset);
- no_sockets++;
- }
- interface = interface->ifa_next;
- }
- freeifaddrs (interfaces);
- }
-#else
- /* we have no easy way to find interfaces with their broadcast addresses. */
- /* use global broadcast and all-hosts instead */
- {
- bjnp_sockaddr_t local;
- bjnp_sockaddr_t bc_addr;
-
- memset( &local, 0, sizeof( local) );
- local.ipv4.sin_family = AF_INET;
- local.ipv4.sin_addr.s_addr = htonl (INADDR_ANY);
-
- bc_addr.ipv4.sin_family = AF_INET;
- bc_addr.ipv4.sin_port = htons(0);
- bc_addr.ipv4.sin_addr.s_addr = htonl (INADDR_BROADCAST);
-
- socket_fd[no_sockets] = prepare_socket( "any_interface",
- &local,
- &bc_addr,
- &broadcast_addr[no_sockets] );
- if (socket_fd[no_sockets] >= 0)
- {
- FD_SET (socket_fd[no_sockets], &fdset);
- if (socket_fd[no_sockets] > last_socketfd)
- {
- last_socketfd = socket_fd[no_sockets];
- }
- no_sockets++;
- }
-#ifdef ENABLE_IPV6
- local.ipv6.sin6_family = AF_INET6;
- local.ipv6.sin6_addr = in6addr_any;
-
- socket_fd[no_sockets] = prepare_socket( "any_interface",
- &local,
- NULL,
- &broadcast_addr[no_sockets] );
- if (socket_fd[no_sockets] >= 0)
- {
- FD_SET (socket_fd[no_sockets], &fdset);
- if (socket_fd[no_sockets] > last_socketfd)
- {
- last_socketfd = socket_fd[no_sockets];
- }
- no_sockets++;
- }
-#endif
- }
-#endif
-
- /* send BJNP_MAX_BROADCAST_ATTEMPTS broadcasts on each prepared socket */
- for (attempt = 0; attempt < BJNP_MAX_BROADCAST_ATTEMPTS; attempt++)
- {
- for ( i=0; i < no_sockets; i++)
- {
- j = 0;
- while(bjnp_protocol_defs[j].protocol_version != PROTOCOL_NONE)
- {
- set_cmd_from_string (bjnp_protocol_defs[j].proto_string, &cmd, CMD_UDP_DISCOVER, 0);
- bjnp_send_broadcast ( socket_fd[i], &broadcast_addr[i],
- bjnp_protocol_defs[j].default_port, cmd, sizeof (cmd));
- j++;
- }
- }
- /* wait for some time between broadcast packets */
- usleep (BJNP_BROADCAST_INTERVAL * BJNP_USLEEP_MS);
- }
-
- /* wait for a UDP response */
-
- timeout.tv_sec = 0;
- timeout.tv_usec = BJNP_BC_RESPONSE_TIMEOUT * BJNP_USLEEP_MS;
-
-
- active_fdset = fdset;
-
- while (select (last_socketfd + 1, &active_fdset, NULL, NULL, &timeout) > 0)
- {
- PDBG (bjnp_dbg (LOG_DEBUG, "sanei_bjnp_find_devices: Select returned, time left %d.%d....\n",
- (int) timeout.tv_sec, (int) timeout.tv_usec));
- for (i = 0; i < no_sockets; i++)
- {
- if (FD_ISSET (socket_fd[i], &active_fdset))
- {
- socklen = sizeof(scanner_sa);
- if ((numbytes =
- recvfrom (socket_fd[i], resp_buf, sizeof (resp_buf), 0,
- &(scanner_sa.addr), &socklen ) ) == -1)
- {
- PDBG (bjnp_dbg
- (LOG_INFO, "sanei_find_devices: no data received"));
- break;
- }
- else
- {
- PDBG (bjnp_dbg (LOG_DEBUG2, "sanei_find_devices: Discover response:\n"));
- PDBG (bjnp_hexdump (LOG_DEBUG2, &resp_buf, numbytes));
-
- /* check if something sensible is returned */
- protocol_defs = get_protocol_by_proto_string(disc_resp-> response.BJNP_id);
- if ( (numbytes < (int)sizeof (struct BJNP_command)) ||
- (protocol_defs == NULL))
- {
- /* not a valid response, assume not a scanner */
-
- char bjnp_id[5];
- strncpy(bjnp_id, disc_resp-> response.BJNP_id, 4);
- bjnp_id[4] = '\0';
- PDBG (bjnp_dbg (LOG_INFO,
- "sanei_find_devices: Invalid discover response! Length = %d, Id = %s\n",
- numbytes, bjnp_id ) );
- break;
- }
- if ( !(disc_resp -> response.dev_type & 0x80) )
- {
- /* not a response, a command from somebody else or */
- /* a discover command that we generated */
- break;
- }
- };
-
- port = get_port_from_sa(scanner_sa);
- /* scanner found, get IP-address or hostname */
- get_scanner_name( &scanner_sa, scanner_host);
-
- /* construct URI */
- sprintf (uri, "%s://%s:%d/timeout=%d", protocol_defs->method_string, scanner_host,
- port, timeout_default);
-
- add_scanner( &dev_no, uri, attach_bjnp, pixma_devices);
-
- }
- }
- active_fdset = fdset;
- timeout.tv_sec = 0;
- timeout.tv_usec = BJNP_BC_RESPONSE_TIMEOUT * BJNP_USLEEP_MS;
- }
- PDBG (bjnp_dbg (LOG_DEBUG, "sanei_find_devices: scanner discovery finished...\n"));
-
- for (i = 0; i < no_sockets; i++)
- close (socket_fd[i]);
-
- return SANE_STATUS_GOOD;
-}
-
-/** Open a BJNP device.
- *
- * The device is opened by its name devname and the device number is
- * returned in dn on success.
- *
- * Device names consist of an URI
- * Where:
- * type = bjnp
- * hostname = resolvable name or IP-address
- * port = 8612 for a scanner
- * An example could look like this: bjnp://host.domain:8612
- *
- * @param devname name of the device to open
- * @param dn device number
- *
- * @return
- * - SANE_STATUS_GOOD - on success
- * - SANE_STATUS_ACCESS_DENIED - if the file couldn't be accessed due to
- * permissions
- * - SANE_STATUS_INVAL - on every other error
- */
-
-extern SANE_Status
-sanei_bjnp_open (SANE_String_Const devname, SANE_Int * dn)
-{
- int result;
-
- PDBG (bjnp_dbg (LOG_INFO, "sanei_bjnp_open(%s, %d):\n", devname, *dn));
-
- result = bjnp_allocate_device (devname, dn, NULL);
- if ( (result != BJNP_STATUS_GOOD) && (result != BJNP_STATUS_ALREADY_ALLOCATED ) ) {
- return SANE_STATUS_INVAL;
- }
- return SANE_STATUS_GOOD;
-}
-
-/** Close a BJNP device.
- *
- * @param dn device number
- */
-
-void
-sanei_bjnp_close (SANE_Int dn)
-{
- PDBG (bjnp_dbg (LOG_INFO, "sanei_bjnp_close(%d):\n", dn));
-
- device[dn].open = 0;
- sanei_bjnp_deactivate(dn);
-}
-
-/** Activate BJNP device connection
- *
- * @param dn device number
- */
-
-SANE_Status
-sanei_bjnp_activate (SANE_Int dn)
-{
- char hostname[256];
- char pid_str[64];
-
- PDBG (bjnp_dbg (LOG_INFO, "sanei_bjnp_activate (%d)\n", dn));
- gethostname (hostname, 256);
- hostname[255] = '\0';
- sprintf (pid_str, "Process ID = %d", getpid ());
-
- bjnp_send_job_details (dn, hostname, getusername (), pid_str);
-
- if (bjnp_open_tcp (dn) != 0)
- {
- return SANE_STATUS_INVAL;
- }
-
- return SANE_STATUS_GOOD;
-}
-
-/** Deactivate BJNP device connection
- *
- * @paran dn device number
- */
-
-SANE_Status
-sanei_bjnp_deactivate (SANE_Int dn)
-{
- PDBG (bjnp_dbg (LOG_INFO, "sanei_bjnp_deactivate (%d)\n", dn));
- if ( device[dn].tcp_socket != -1)
- {
- bjnp_finish_job (dn);
- close (device[dn].tcp_socket);
- device[dn].tcp_socket = -1;
- }
- return SANE_STATUS_GOOD;
-}
-
-/** Set the timeout for interrupt reads.
- * we do not use it for bulk reads!
- * @param timeout the new timeout in ms
- */
-extern void
-sanei_bjnp_set_timeout (SANE_Int devno, SANE_Int timeout)
-{
- if (timeout < device[devno].bjnp_min_timeout)
- {
- PDBG (bjnp_dbg (LOG_INFO, "bjnp_set_timeout to %d, but using minimum value %d\n",
- timeout, device[devno].bjnp_min_timeout));
- timeout = device[devno].bjnp_min_timeout;
- } else {
- PDBG (bjnp_dbg (LOG_INFO, "bjnp_set_timeout to %d\n",
- timeout));
- }
-
- device[devno].bjnp_timeout = timeout;
-}
-
-/** Initiate a bulk transfer read.
- *
- * Read up to size bytes from the device to buffer. After the read, size
- * contains the number of bytes actually read.
- *
- * @param dn device number
- * @param buffer buffer to store read data in
- * @param size size of the data
- *
- * @return
- * - SANE_STATUS_GOOD - on succes
- * - SANE_STATUS_EOF - if zero bytes have been read
- * - SANE_STATUS_IO_ERROR - if an error occured during the read
- * - SANE_STATUS_INVAL - on every other error
- *
- */
-
-extern SANE_Status
-sanei_bjnp_read_bulk (SANE_Int dn, SANE_Byte * buffer, size_t * size)
-{
- SANE_Status result;
- SANE_Status error;
- size_t recvd;
- size_t read_size;
- size_t read_size_max;
- size_t requested;
-
- PDBG (bjnp_dbg
- (LOG_INFO, "bjnp_read_bulk(dn=%d, bufferptr=%lx, 0x%lx = %ld)\n", dn,
- (long) buffer, (unsigned long) *size, (unsigned long) *size));
-
- recvd = 0;
- requested = *size;
-
- PDBG (bjnp_dbg
- (LOG_DEBUG, "bjnp_read_bulk: 0x%lx = %ld bytes available at start\n",
- (unsigned long) device[dn].scanner_data_left,
- (unsigned long) device[dn].scanner_data_left ) );
-
- while ( (recvd < requested) && !( device[dn].last_block && (device[dn].scanner_data_left == 0)) )
- {
- PDBG (bjnp_dbg
- (LOG_DEBUG,
- "bjnp_read_bulk: Already received 0x%lx = %ld bytes, backend requested 0x%lx = %ld bytes\n",
- (unsigned long) recvd, (unsigned long) recvd,
- (unsigned long) requested, (unsigned long)requested ));
-
- /* Check first if there is data in flight from the scanner */
-
- if (device[dn].scanner_data_left == 0)
- {
- /* There is no data in flight from the scanner, send new read request */
-
- PDBG (bjnp_dbg (LOG_DEBUG,
- "bjnp_read_bulk: No (more) scanner data available, requesting more( blocksize = %ld = %lx\n",
- (long int) device[dn].blocksize, (long int) device[dn].blocksize ));
-
- if ((error = bjnp_send_read_request (dn)) != SANE_STATUS_GOOD)
- {
- *size = recvd;
- return SANE_STATUS_IO_ERROR;
- }
- if ( ( error = bjnp_recv_header (dn, &(device[dn].scanner_data_left) ) ) != SANE_STATUS_GOOD)
- {
- *size = recvd;
- return SANE_STATUS_IO_ERROR;
- }
- /* correct blocksize if applicable */
-
- device[dn].blocksize = MAX (device[dn].blocksize, device[dn].scanner_data_left);
-
- if ( device[dn].scanner_data_left < device[dn].blocksize)
- {
- /* the scanner will not react at all to a read request, when no more data is available */
- /* we now determine end of data by comparing the payload size to the maximun blocksize */
- /* this block is shorter than blocksize, so after this block we are done */
-
- device[dn].last_block = 1;
- }
- }
-
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_read_bulk: In flight: 0x%lx = %ld bytes available\n",
- (unsigned long) device[dn].scanner_data_left,
- (unsigned long) device[dn].scanner_data_left));
-
- /* read as many bytes as needed and available */
-
- read_size_max = MIN( device[dn].scanner_data_left, (requested - recvd) );
- read_size = read_size_max;
-
- PDBG (bjnp_dbg
- (LOG_DEBUG,
- "bjnp_read_bulk: Try to read 0x%lx = %ld (of max 0x%lx = %ld) bytes\n",
- (unsigned long) read_size_max,
- (unsigned long) read_size_max,
- (unsigned long) device[dn].scanner_data_left,
- (unsigned long) device[dn].scanner_data_left) );
-
- result = bjnp_recv_data (dn, buffer , recvd, &read_size);
- if (result != SANE_STATUS_GOOD)
- {
- *size = recvd;
- return SANE_STATUS_IO_ERROR;
- }
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_read_bulk: Expected at most %ld bytes, received this time: %ld\n",
- read_size_max, read_size) );
-
- device[dn].scanner_data_left = device[dn].scanner_data_left - read_size;
- recvd = recvd + read_size;
- }
-
- PDBG (bjnp_dbg (LOG_DEBUG, "bjnp_read_bulk: %s: Returning %ld bytes, backend expexts %ld\n",
- (recvd == *size)? "OK": "NOTICE",recvd, *size ) );
- *size = recvd;
- if ( *size == 0 )
- return SANE_STATUS_EOF;
- return SANE_STATUS_GOOD;
-}
-
-/** Initiate a bulk transfer write.
- *
- * Write up to size bytes from buffer to the device. After the write size
- * contains the number of bytes actually written.
- *
- * @param dn device number
- * @param buffer buffer to write to device
- * @param size size of the data
- *
- * @return
- * - SANE_STATUS_GOOD - on succes
- * - SANE_STATUS_IO_ERROR - if an error occured during the write
- * - SANE_STATUS_INVAL - on every other error
- */
-
-extern SANE_Status
-sanei_bjnp_write_bulk (SANE_Int dn, const SANE_Byte * buffer, size_t * size)
-{
- ssize_t sent;
- size_t recvd;
- uint32_t buf;
- size_t payload_size;
-
- /* Write received data to scanner */
-
- sent = bjnp_write (dn, buffer, *size);
- if (sent < 0)
- return SANE_STATUS_IO_ERROR;
- if (sent != (int) *size)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "sanei_bjnp_write_bulk: ERROR - Sent only %ld bytes to scanner, expected %ld!!\n",
- (unsigned long) sent, (unsigned long) *size));
- return SANE_STATUS_IO_ERROR;
- }
-
- if (bjnp_recv_header (dn, &payload_size) != SANE_STATUS_GOOD)
- {
- PDBG (bjnp_dbg (LOG_CRIT, "sanei_bjnp_write_bulk: ERROR - Could not read response to command!\n"));
- return SANE_STATUS_IO_ERROR;
- }
-
- if (payload_size != 4)
- {
- PDBG (bjnp_dbg (LOG_CRIT,
- "sanei_bjnp_write_bulk: ERROR - Scanner length of write confirmation = 0x%lx bytes = %ld, expected %d!!\n",
- (unsigned long) payload_size,
- (unsigned long) payload_size, 4));
- return SANE_STATUS_IO_ERROR;
- }
- recvd = payload_size;
- if ((bjnp_recv_data (dn, (unsigned char *) &buf, 0, &recvd) !=
- SANE_STATUS_GOOD) || (recvd != payload_size))
- {
- PDBG (bjnp_dbg (LOG_CRIT,
- "sanei_bjnp_write_bulk: ERROR - Could not read length of data confirmed by device\n"));
- return SANE_STATUS_IO_ERROR;
- }
- recvd = ntohl (buf);
- if (recvd != *size)
- {
- PDBG (bjnp_dbg
- (LOG_CRIT, "sanei_bjnp_write_bulk: ERROR - Scanner confirmed %ld bytes, expected %ld!!\n",
- (unsigned long) recvd, (unsigned long) *size));
- return SANE_STATUS_IO_ERROR;
- }
- /* we can expect data from the scanner */
-
- device[dn].last_block = 0;
-
- return SANE_STATUS_GOOD;
-}
-
-/** Initiate a interrupt transfer read.
- *
- * Read up to size bytes from the interrupt endpoint from the device to
- * buffer. After the read, size contains the number of bytes actually read.
- *
- * @param dn device number
- * @param buffer buffer to store read data in
- * @param size size of the data
- *
- * @return
- * - SANE_STATUS_GOOD - on succes
- * - SANE_STATUS_EOF - if zero bytes have been read
- * - SANE_STATUS_IO_ERROR - if an error occured during the read
- * - SANE_STATUS_INVAL - on every other error
- *
- */
-
-extern SANE_Status
-sanei_bjnp_read_int (SANE_Int dn, SANE_Byte * buffer, size_t * size)
-{
-#ifndef PIXMA_BJNP_USE_STATUS
- PDBG (bjnp_dbg
- (LOG_INFO, "bjnp_read_int(%d, bufferptr, 0x%lx = %ld):\n", dn,
- (unsigned long) *size, (unsigned long) *size));
-
- memset (buffer, 0, *size);
- sleep (1);
- return SANE_STATUS_IO_ERROR;
-#else
-
- char hostname[256];
- int resp_len;
- int timeout;
- int seconds;
-
- PDBG (bjnp_dbg
- (LOG_INFO, "bjnp_read_int(%d, bufferptr, 0x%lx = %ld):\n", dn,
- (unsigned long) *size, (unsigned long) *size));
-
- memset (buffer, 0, *size);
-
- gethostname (hostname, 32);
- hostname[32] = '\0';
-
-
- switch (device[dn].polling_status)
- {
- case BJNP_POLL_STOPPED:
-
- /* establish dialog */
-
- if ( (bjnp_poll_scanner (dn, 0, hostname, getusername (), buffer, *size ) != 0) ||
- (bjnp_poll_scanner (dn, 1, hostname, getusername (), buffer, *size ) != 0) )
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "bjnp_read_int: WARNING - Failed to setup read_intr dialog with device!\n"));
- device[dn].dialog = 0;
- device[dn].status_key = 0;
- return SANE_STATUS_IO_ERROR;
- }
- device[dn].polling_status = BJNP_POLL_STARTED;
-
- /* fall through to BJNP_POLL_STARTED */
-
- case BJNP_POLL_STARTED:
- /* we use only seonds accuracy between poll attempts */
- timeout = device[dn].bjnp_timeout /1000;
-
- do
- {
- if ( (resp_len = bjnp_poll_scanner (dn, 2, hostname, getusername (), buffer, *size ) ) < 0 )
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "bjnp_read_int: Restarting polling dialog!\n"));
- device[dn].polling_status = BJNP_POLL_STOPPED;
- *size = 0;
- return SANE_STATUS_EOF;
- }
- *size = (size_t) resp_len;
- if ( resp_len > 0 )
- {
- device[dn].polling_status = BJNP_POLL_STATUS_RECEIVED;
- return SANE_STATUS_GOOD;
- }
- seconds = timeout > 2 ? 2 : timeout;
- sleep(seconds);
- timeout = timeout - seconds;
- } while ( timeout > 0 ) ;
- break;
- case BJNP_POLL_STATUS_RECEIVED:
- if ( (resp_len = bjnp_poll_scanner (dn, 5, hostname, getusername (), buffer, *size ) ) < 0 )
- {
- PDBG (bjnp_dbg (LOG_NOTICE, "bjnp_read_int: Restarting polling dialog!\n"));
- device[dn].polling_status = BJNP_POLL_STOPPED;
- *size = 0;
- break;
- }
- }
- return SANE_STATUS_EOF;
-#endif
-}
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