4594 lines
131 KiB
C
4594 lines
131 KiB
C
/*****************************************************************************
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* sdla_ppp.c WANPIPE(tm) Multiprotocol WAN Link Driver. PPP module.
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*
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* Author: Nenad Corbic <ncorbic@sangoma.com>
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*
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* Copyright: (c) 1995-2002 Sangoma Technologies Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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* ============================================================================
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* Jan 03, 2003 Nenad Corbic o Bug fix in Rx IPX packet. Possible memory leak
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* if an invalid IPX packet was received
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* Oct 18, 2002 Nenad Corbic 0 Added BRIDGE support
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* Aug 30, 2002 Nenad Corbic o Added support for S5147 Dual TE1 card
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* Jan 12, 2002 Nenad Corbic o Removed the 2.0.X support
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* Added front end states
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* Dec 03, 2001 Gideon Hack o Updated for S514-5 56K adapter.
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* Sep 20, 2001 Nenad Corbic o The min() function has changed for 2.4.9
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* kernel. Thus using the wp_min() defined in
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* wanpipe.h
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* Sept 6, 2001 Alex Feldman o Add SNMP support.
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* Aug 23, 2001 Nenad Corbic o Removed the if_header and set the hard_header
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* length to zero. Caused problems with Checkpoint
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* firewall.
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* Jul 22, 2001 Nenad Corbic o Buf Fix make sure that in_dev ptr exists
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* before trying to reference it.
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* Jun 07, 2001 Nenad Corbic o Bug Fix in retrigger_comm():
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* On a noisy line, if the
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* protocol toggles UP and DOWN fast
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* enough it can lead to a race condition
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* that will cause it to stop working.
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* May 25, 2001 Alex Feldman o Added T1/E1 support
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* Feb 28, 2001 Nenad Corbic o Updated if_tx_timeout() routine for
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* 2.4.X kernels.
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* Nov 29, 2000 Nenad Corbic o Added the 2.4.x kernel support:
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* get_ip_address() function has moved
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* into the ppp_poll() routine. It cannot
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* be called from an interrupt.
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* Nov 07, 2000 Nenad Corbic o Added security features for UDP debugging:
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* Deny all and specify allowed requests.
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* May 02, 2000 Nenad Corbic o Added the dynamic interface shutdown
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* option. When the link goes down, the
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* network interface IFF_UP flag is reset.
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* Mar 06, 2000 Nenad Corbic o Bug Fix: corrupted mbox recovery.
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* Feb 25, 2000 Nenad Corbic o Fixed the FT1 UDP debugger problem.
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* Feb 09, 2000 Nenad Coribc o Shutdown bug fix. update() was called
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* with NULL dev pointer: no check.
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* Jan 24, 2000 Nenad Corbic o Disabled use of CMD complete inter.
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* Dev 15, 1999 Nenad Corbic o Fixed up header files for 2.0.X kernels
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* Oct 25, 1999 Nenad Corbic o Support for 2.0.X kernels
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* Moved dynamic route processing into
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* a polling routine.
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* Oct 07, 1999 Nenad Corbic o Support for S514 PCI card.
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* Gideon Hack o UPD and Updates executed using timer interrupt
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* Sep 10, 1999 Nenad Corbic o Fixed up the /proc statistics
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* Jul 20, 1999 Nenad Corbic o Remove the polling routines and use
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* interrupts instead.
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* Sep 17, 1998 Jaspreet Singh o Updates for 2.2.X Kernels.
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* Aug 13, 1998 Jaspreet Singh o Improved Line Tracing.
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* Jun 22, 1998 David Fong o Added remote IP address assignment
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* Mar 15, 1998 Alan Cox o 2.1.8x basic port.
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* Apr 16, 1998 Jaspreet Singh o using htons() for the IPX protocol.
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* Dec 09, 1997 Jaspreet Singh o Added PAP and CHAP.
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* o Implemented new routines like
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* ppp_set_inbnd_auth(), ppp_set_outbnd_auth(),
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* tokenize() and str_strip().
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* Nov 27, 1997 Jaspreet Singh o Added protection against enabling of irqs
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* while they have been disabled.
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* Nov 24, 1997 Jaspreet Singh o Fixed another RACE condition caused by
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* disabling and enabling of irqs.
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* o Added new counters for stats on disable/enable
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* IRQs.
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* Nov 10, 1997 Jaspreet Singh o Initialized 'skb->mac.raw' to 'skb->data'
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* before every netif_rx().
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* o Free up the device structure in del_if().
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* Nov 07, 1997 Jaspreet Singh o Changed the delay to zero for Line tracing
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* command.
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* Oct 20, 1997 Jaspreet Singh o Added hooks in for Router UP time.
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* Oct 16, 1997 Jaspreet Singh o The critical flag is used to maintain flow
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* control by avoiding RACE conditions. The
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* cli() and restore_flags() are taken out.
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* A new structure, "ppp_private_area", is added
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* to provide Driver Statistics.
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* Jul 21, 1997 Jaspreet Singh o Protected calls to sdla_peek() by adding
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* save_flags(), cli() and restore_flags().
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* Jul 07, 1997 Jaspreet Singh o Added configurable TTL for UDP packets
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* o Added ability to discard mulitcast and
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* broacast source addressed packets.
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* Jun 27, 1997 Jaspreet Singh o Added FT1 monitor capabilities
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* New case (0x25) statement in if_send routine.
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* Added a global variable rCount to keep track
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* of FT1 status enabled on the board.
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* May 22, 1997 Jaspreet Singh o Added change in the PPP_SET_CONFIG command for
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* 508 card to reflect changes in the new
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* ppp508.sfm for supporting:continous transmission
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* of Configure-Request packets without receiving a
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* reply
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* OR-ed 0x300 to conf_flags
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* o Changed connect_tmout from 900 to 0
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* May 21, 1997 Jaspreet Singh o Fixed UDP Management for multiple boards
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* Apr 25, 1997 Farhan Thawar o added UDP Management stuff
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* Mar 11, 1997 Farhan Thawar Version 3.1.1
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* o fixed (+1) bug in rx_intr()
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* o changed if_send() to return 0 if
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* wandev.critical() is true
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* o free socket buffer in if_send() if
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* returning 0
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* Jan 15, 1997 Gene Kozin Version 3.1.0
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* o implemented exec() entry point
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* Jan 06, 1997 Gene Kozin Initial version.
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*****************************************************************************/
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#include <linux/wanpipe_includes.h>
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#include <linux/wanpipe_defines.h>
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#include <linux/wanrouter.h> /* WAN router definitions */
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#include <linux/wanpipe.h> /* WANPIPE common user API definitions */
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#include <linux/wanproc.h>
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#include <linux/wanpipe_snmp.h>
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#include <linux/sdla_ppp.h> /* PPP firmware API definitions */
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#include <linux/sdlasfm.h> /* S514 Type Definition */
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#include <linux/sdla_front_end.h>
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#include <linux/if_wanpipe.h>
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#include <linux/if_wanpipe_common.h> /* Socket Driver common area */
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/****** Defines & Macros ****************************************************/
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#define PPP_DFLT_MTU 1500 /* default MTU */
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#define PPP_MAX_MTU 4000 /* maximum MTU */
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#define PPP_HDR_LEN 1
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/* Private critical flags */
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enum {
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POLL_CRIT = PRIV_CRIT
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};
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#define MAX_IP_ERRORS 100
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#define CONNECT_TIMEOUT (90*HZ) /* link connection timeout */
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#define HOLD_DOWN_TIME (5*HZ) /* link hold down time : Changed from 30 to 5 */
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/* For handle_IPXWAN() */
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#define CVHexToAscii(b) (((unsigned char)(b) > (unsigned char)9) ? ((unsigned char)'A' + ((unsigned char)(b) - (unsigned char)10)) : ((unsigned char)'0' + (unsigned char)(b)))
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/* Macro for enabling/disabling debugging comments */
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#undef NEX_DEBUG
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#ifdef NEX_DEBUG
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#define NEX_PRINTK(format, a...) printk(format, ## a)
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#else
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#define NEX_PRINTK(format, a...)
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#endif /* NEX_DEBUG */
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#define DCD(a) ( a & 0x08 ? "HIGH" : "LOW" )
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#define CTS(a) ( a & 0x20 ? "HIGH" : "LOW" )
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#define LCP(a) ( a == 0x09 ? "OPEN" : "CLOSED" )
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#define IP(a) ( a == 0x09 ? "ENABLED" : "DISABLED" )
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#define TMR_INT_ENABLED_UPDATE 0x01
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#define TMR_INT_ENABLED_PPP_EVENT 0x02
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#define TMR_INT_ENABLED_UDP 0x04
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#define TMR_INT_ENABLED_CONFIG 0x20
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#define TMR_INT_ENABLED_TE 0x40
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/* Set Configuraton Command Definitions */
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#define PERCENT_TX_BUFF 60
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#define TIME_BETWEEN_CONF_REQ 120
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#define TIME_BETWEEN_PAP_CHAP_REQ 120
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#define WAIT_PAP_CHAP_WITHOUT_REPLY 1200
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#define WAIT_AFTER_DCD_CTS_LOW 20
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#define TIME_DCD_CTS_LOW_AFTER_LNK_DOWN 40
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#define WAIT_DCD_HIGH_AFTER_ENABLE_COMM 3400
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#define MAX_CONF_REQ_WITHOUT_REPLY 40
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#define MAX_TERM_REQ_WITHOUT_REPLY 10
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#define NUM_CONF_NAK_WITHOUT_REPLY 20
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#define NUM_AUTH_REQ_WITHOUT_REPLY 40
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#define END_OFFSET 0x1F0
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#if LINUX_VERSION_CODE < 0x020125
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#define test_and_set_bit set_bit
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#define net_ratelimit() 1
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#endif
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/* Number of times we'll retry to
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* enable comunications. If it fails
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* the link should be restarted */
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#define MAX_COMM_BUSY_RETRY 10
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/******Data Structures*****************************************************/
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/* This structure is placed in the private data area of the device structure.
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* The card structure used to occupy the private area but now the following
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* structure will incorporate the card structure along with PPP specific data
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*/
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typedef struct ppp_private_area
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{
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wanpipe_common_t common;
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netdevice_t *slave;
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sdla_t* card;
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unsigned long router_start_time; /*router start time in sec */
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unsigned long tick_counter; /*used for 5 second counter*/
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unsigned mc; /*multicast support on or off*/
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unsigned char enable_IPX;
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unsigned long network_number;
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unsigned char pap;
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unsigned char chap;
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unsigned char sysname[31]; /* system name for in-bnd auth*/
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unsigned char userid[511]; /* list of user ids */
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unsigned char passwd[511]; /* list of passwords */
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unsigned protocol; /* SKB Protocol */
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u32 ip_local; /* Local IP Address */
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u32 ip_remote; /* remote IP Address */
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u32 ip_local_tmp;
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u32 ip_remote_tmp;
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unsigned int timer_int_enabled; /* Who enabled the timer inter*/
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unsigned long update_comms_stats; /* Used by update function */
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unsigned long curr_trace_addr; /* Trace information */
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unsigned long start_trace_addr;
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unsigned long end_trace_addr;
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unsigned long interface_down; /* Brind down interface when channel
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goes down */
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unsigned long config_wait_timeout; /* After if_open() if in dynamic if mode,
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wait a few seconds before configuring */
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char udp_pkt_src;
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/* PPP specific statistics */
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if_send_stat_t if_send_stat;
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rx_intr_stat_t rx_intr_stat;
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pipe_mgmt_stat_t pipe_mgmt_stat;
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unsigned long router_up_time;
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/* Polling task queue. Each interface
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* has its own task queue, which is used
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* to defer events from the interrupt */
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wan_taskq_t poll_task;
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struct timer_list poll_delay_timer;
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u8 gateway;
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unsigned long config_ppp;
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u8 ip_error;
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/* Entry in proc fs per each interface */
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struct proc_dir_entry* dent;
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unsigned char comm_busy_retry;
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unsigned char ppp_state;
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unsigned char udp_pkt_data[sizeof(wan_udp_pkt_t)+10];
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atomic_t udp_pkt_len;
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char if_name[WAN_IFNAME_SZ+1];
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}ppp_private_area_t;
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extern void disable_irq(unsigned int);
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extern void enable_irq(unsigned int);
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/****** Function Prototypes *************************************************/
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/* WAN link driver entry points. These are called by the WAN router module. */
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static int update(wan_device_t *wandev);
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static int new_if(wan_device_t *wandev, netdevice_t *dev, wanif_conf_t *conf);
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static int del_if(wan_device_t *wandev, netdevice_t *dev);
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/* Network device interface */
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static int if_init(netdevice_t *dev);
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static int if_open(netdevice_t *dev);
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static int if_close(netdevice_t *dev);
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static int if_do_ioctl(netdevice_t *dev, struct ifreq *ifr, int cmd);
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static void if_tx_timeout (netdevice_t *dev);
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static struct net_device_stats *if_stats(netdevice_t *dev);
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static int if_send(struct sk_buff *skb, netdevice_t *dev);
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/* PPP firmware interface functions */
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static int ppp_read_version(sdla_t *card, char *str);
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static int ppp_set_outbnd_auth(sdla_t *card, ppp_private_area_t *ppp_priv_area);
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static int ppp_set_inbnd_auth(sdla_t *card, ppp_private_area_t *ppp_priv_area);
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static int ppp_configure(sdla_t *card, void *data);
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static int ppp_set_intr_mode(sdla_t *card, unsigned char mode);
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static int ppp_comm_enable(sdla_t *card);
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static int ppp_comm_disable(sdla_t *card);
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static int ppp_comm_disable_shutdown(sdla_t *card);
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static int ppp_get_err_stats(sdla_t *card);
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static int ppp_send(sdla_t *card, void *data, unsigned len, unsigned proto);
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static int ppp_error(sdla_t *card, int err, wan_mbox_t *mb);
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static int set_adapter_config (sdla_t* card);
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static WAN_IRQ_RETVAL wpp_isr(sdla_t *card);
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static void rx_intr(sdla_t *card);
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static void event_intr(sdla_t *card);
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static void timer_intr(sdla_t *card);
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/* Background polling routines */
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static void process_route(sdla_t *card);
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static int retrigger_comm(sdla_t *card);
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/* Miscellaneous functions */
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static int read_info( sdla_t *card );
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static int read_connection_info (sdla_t *card);
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static void remove_route( sdla_t *card );
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static int config508(netdevice_t *dev, sdla_t *card);
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static void show_disc_cause(sdla_t * card, unsigned cause);
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static int reply_udp( unsigned char *data, unsigned int mbox_len );
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static void process_udp_mgmt_pkt(sdla_t *card, netdevice_t *dev,
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ppp_private_area_t *ppp_priv_area,int local_dev);
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static void init_ppp_tx_rx_buff( sdla_t *card );
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static int intr_test( sdla_t *card );
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static int udp_pkt_type( struct sk_buff *skb , sdla_t *card);
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static void init_ppp_priv_struct( ppp_private_area_t *ppp_priv_area);
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static void init_global_statistics( sdla_t *card );
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static int tokenize(char *str, char **tokens);
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static char* str_strip(char *str, char *s);
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static int chk_bcast_mcast_addr(sdla_t* card, netdevice_t* dev,
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struct sk_buff *skb);
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static int config_ppp (sdla_t *);
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static void trigger_ppp_poll(netdevice_t *);
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static void ppp_poll_delay (unsigned long dev_ptr);
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# if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
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static void ppp_poll (void *card_ptr);
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#else
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static void ppp_poll (struct work_struct *work);
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#endif
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static unsigned long Read_connection_info;
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static unsigned short available_buffer_space;
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/* IPX functions */
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static void switch_net_numbers(unsigned char *sendpacket, unsigned long network_number,
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unsigned char incoming);
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static int handle_IPXWAN(unsigned char *sendpacket, char *devname, unsigned char enable_PX,
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unsigned long network_number, unsigned short proto);
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/* Lock Functions */
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static void s508_lock (sdla_t *card, unsigned long *smp_flags);
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static void s508_unlock (sdla_t *card, unsigned long *smp_flags);
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static int store_udp_mgmt_pkt(char udp_pkt_src, sdla_t* card,
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struct sk_buff *skb, netdevice_t* dev,
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ppp_private_area_t* ppp_priv_area );
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static unsigned short calc_checksum (char *data, int len);
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static void disable_comm (sdla_t *card);
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static int detect_and_fix_tx_bug (sdla_t *card);
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static int ppp_get_config_info(void* priv, struct seq_file* m, int*);
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static int ppp_get_status_info(void* priv, struct seq_file* m, int*);
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static int ppp_set_dev_config(struct file*, const char*, unsigned long, void *);
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static int ppp_set_if_info(struct file*, const char*, unsigned long, void *);
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static WRITE_FRONT_END_REG_T write_front_end_reg;
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static READ_FRONT_END_REG_T read_front_end_reg;
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static void ppp_enable_timer(void* card_id);
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static void ppp_handle_front_end_state(void* card_id);
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/* SNMP */
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static int ppp_snmp_data(sdla_t* card, netdevice_t *dev, void* data);
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static int ppp_debugging(sdla_t* card);
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static unsigned long ppp_crc_frames(sdla_t* card);
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static unsigned long ppp_abort_frames(sdla_t * card);
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static unsigned long ppp_tx_underun_frames(sdla_t* card);
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/****** Public Functions ****************************************************/
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/*============================================================================
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* PPP protocol initialization routine.
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*
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* This routine is called by the main WANPIPE module during setup. At this
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* point adapter is completely initialized and firmware is running.
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* o read firmware version (to make sure it's alive)
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* o configure adapter
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* o initialize protocol-specific fields of the adapter data space.
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*
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* Return: 0 o.k.
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* < 0 failure.
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*/
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int wpp_init(sdla_t *card, wandev_conf_t *conf)
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{
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int err;
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union
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{
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char str[80];
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} u;
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/* Verify configuration ID */
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if (conf->config_id != WANCONFIG_PPP) {
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printk(KERN_INFO "%s: invalid configuration ID %u!\n",
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card->devname, conf->config_id);
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return -EINVAL;
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}
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/* Initialize miscellaneous pointers to structures on the adapter */
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switch (card->type) {
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case SDLA_S508: /* Alex Apr 8 2004 Sangoma ISA card */
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case SDLA_S514:
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card->mbox_off = PPP514_MB_OFFS;
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card->flags_off = PPP514_FLG_OFFS;
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break;
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default:
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return -EINVAL;
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}
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card->intr_type_off =
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card->flags_off +
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offsetof(ppp_flags_t, iflag);
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card->intr_perm_off =
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card->flags_off +
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offsetof(ppp_flags_t, imask);
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card->wandev.ignore_front_end_status = conf->ignore_front_end_status;
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//ALEX_TODAY err=check_conf_hw_mismatch(card,conf->te_cfg.media);
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err = (card->hw_iface.check_mismatch) ?
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card->hw_iface.check_mismatch(card->hw,conf->fe_cfg.media) : -EINVAL;
|
|
if (err){
|
|
return err;
|
|
}
|
|
|
|
/* TE1 Make special hardware initialization for T1/E1 board */
|
|
if (IS_TE1_MEDIA(&conf->fe_cfg)){
|
|
|
|
memcpy(&card->fe.fe_cfg, &conf->fe_cfg, sizeof(sdla_fe_cfg_t));
|
|
sdla_te_iface_init(&card->wandev.fe_iface);
|
|
card->fe.name = card->devname;
|
|
card->fe.card = card;
|
|
card->fe.write_fe_reg = write_front_end_reg;
|
|
card->fe.read_fe_reg = read_front_end_reg;
|
|
|
|
card->wandev.fe_enable_timer = ppp_enable_timer;
|
|
card->wandev.te_link_state = ppp_handle_front_end_state;
|
|
conf->interface =
|
|
(IS_T1_CARD(card)) ? WANOPT_V35 : WANOPT_RS232;
|
|
conf->clocking = WANOPT_EXTERNAL;
|
|
|
|
}else if (IS_56K_MEDIA(&conf->fe_cfg)){
|
|
|
|
memcpy(&card->fe.fe_cfg, &conf->fe_cfg, sizeof(sdla_fe_cfg_t));
|
|
sdla_56k_iface_init(&card->wandev.fe_iface);
|
|
card->fe.name = card->devname;
|
|
card->fe.card = card;
|
|
card->fe.write_fe_reg = write_front_end_reg;
|
|
card->fe.read_fe_reg = read_front_end_reg;
|
|
|
|
conf->clocking = WANOPT_EXTERNAL;
|
|
}else{
|
|
card->fe.fe_status = FE_CONNECTED;
|
|
}
|
|
|
|
if (card->wandev.ignore_front_end_status == WANOPT_NO){
|
|
printk(KERN_INFO
|
|
"%s: Enabling front end link monitor\n",
|
|
card->devname);
|
|
}else{
|
|
printk(KERN_INFO
|
|
"%s: Disabling front end link monitor\n",
|
|
card->devname);
|
|
}
|
|
|
|
/* Read firmware version. Note that when adapter initializes, it
|
|
* clears the mailbox, so it may appear that the first command was
|
|
* executed successfully when in fact it was merely erased. To work
|
|
* around this, we execute the first command twice.
|
|
*/
|
|
if (ppp_read_version(card, NULL) || ppp_read_version(card, u.str))
|
|
return -EIO;
|
|
|
|
printk(KERN_INFO "%s: running PPP firmware v%s\n",card->devname, u.str);
|
|
|
|
|
|
if (set_adapter_config(card)) {
|
|
return -EIO;
|
|
}
|
|
|
|
|
|
/* Adjust configuration and set defaults */
|
|
card->wandev.mtu = (conf->mtu) ?
|
|
wp_min(conf->mtu, PPP_MAX_MTU) : PPP_DFLT_MTU;
|
|
|
|
card->wandev.bps = conf->bps;
|
|
card->wandev.interface = conf->interface;
|
|
card->wandev.clocking = conf->clocking;
|
|
card->isr = &wpp_isr;
|
|
card->poll = NULL;
|
|
card->exec = NULL;
|
|
card->wandev.update = &update;
|
|
card->wandev.new_if = &new_if;
|
|
card->wandev.del_if = &del_if;
|
|
card->wandev.udp_port = conf->udp_port;
|
|
card->wandev.ttl = conf->ttl;
|
|
card->wandev.state = WAN_DISCONNECTED;
|
|
card->disable_comm = &disable_comm;
|
|
card->irq_dis_if_send_count = 0;
|
|
card->irq_dis_poll_count = 0;
|
|
card->u.p.authenticator = conf->u.ppp.authenticator;
|
|
card->u.p.ip_mode = conf->u.ppp.ip_mode ?
|
|
conf->u.ppp.ip_mode : WANOPT_PPP_STATIC;
|
|
card->TracingEnabled = 0;
|
|
Read_connection_info = 1;
|
|
|
|
// Proc fs functions
|
|
card->wandev.get_config_info = &ppp_get_config_info;
|
|
card->wandev.get_status_info = &ppp_get_status_info;
|
|
card->wandev.set_dev_config = &ppp_set_dev_config;
|
|
card->wandev.set_if_info = &ppp_set_if_info;
|
|
|
|
/* Debugging */
|
|
card->wan_debugging = &ppp_debugging;
|
|
card->get_crc_frames = &ppp_crc_frames;
|
|
card->get_abort_frames = &ppp_abort_frames;
|
|
card->get_tx_underun_frames = &ppp_tx_underun_frames;
|
|
|
|
/* SNMP data */
|
|
card->get_snmp_data = &ppp_snmp_data;
|
|
/* initialize global statistics */
|
|
init_global_statistics( card );
|
|
|
|
|
|
|
|
if (!card->configured){
|
|
int err;
|
|
|
|
card->timer_int_enabled = 0;
|
|
err = intr_test(card);
|
|
|
|
if(err || (card->timer_int_enabled < MAX_INTR_TEST_COUNTER)) {
|
|
printk("%s: Interrupt Test Failed, Counter: %i\n",
|
|
card->devname, card->timer_int_enabled);
|
|
printk( "%s: Please choose another interrupt\n",card->devname);
|
|
return -EIO;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: Interrupt Test Passed, Counter: %i\n",
|
|
card->devname, card->timer_int_enabled);
|
|
card->configured = 1;
|
|
}
|
|
|
|
ppp_set_intr_mode(card, PPP_INTR_TIMER);
|
|
|
|
/* Turn off the timer interrupt */
|
|
card->hw_iface.clear_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
|
|
printk(KERN_INFO "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/******* WAN Device Driver Entry Points *************************************/
|
|
|
|
/*============================================================================
|
|
* Update device status & statistics.
|
|
*/
|
|
static int update(wan_device_t *wandev)
|
|
{
|
|
sdla_t* card = wandev->private;
|
|
netdevice_t *dev;
|
|
volatile ppp_private_area_t *ppp_priv_area;
|
|
unsigned long smp_flags;
|
|
|
|
/* sanity checks */
|
|
if ((wandev == NULL) || (wandev->private == NULL))
|
|
return -EFAULT;
|
|
|
|
if (wandev->state == WAN_UNCONFIGURED)
|
|
return -ENODEV;
|
|
|
|
/* Shutdown bug fix. This function can be
|
|
* called with NULL dev pointer during
|
|
* shutdown
|
|
*/
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (dev == NULL)
|
|
return -ENODEV;
|
|
|
|
if ((ppp_priv_area = wan_netif_priv(dev)) == NULL){
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* TE1 Read T1/E1 alarms and PMON counters in one timer interrupt */
|
|
if (test_and_set_bit(0,&ppp_priv_area->update_comms_stats)){
|
|
return -EBUSY;
|
|
}
|
|
|
|
spin_lock_irqsave(&card->wandev.lock, smp_flags);
|
|
|
|
ppp_get_err_stats(card);
|
|
|
|
if (IS_TE1_CARD(card)) {
|
|
card->wandev.fe_iface.read_alarm(&card->fe, 0);
|
|
/* TE1 Update T1/E1 perfomance counters */
|
|
card->wandev.fe_iface.read_pmon(&card->fe, 0);
|
|
}else if (IS_56K_CARD(card)) {
|
|
/* 56K Update CSU/DSU alarms */
|
|
card->wandev.fe_iface.read_alarm(&card->fe, 1);
|
|
}
|
|
|
|
ppp_priv_area->update_comms_stats=0;
|
|
|
|
spin_unlock_irqrestore(&card->wandev.lock, smp_flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*============================================================================
|
|
* new_if - Create new logical channel.
|
|
*
|
|
* &wandev: Wanpipe device pointer
|
|
* &dev: Network device pointer
|
|
* &conf: User configuration options pointer
|
|
*
|
|
* This routine is called by the ROUTER_IFNEW ioctl,
|
|
* in wanmain.c. The ioctl passes us the user configuration
|
|
* options which we use to configure the driver and
|
|
* firmware.
|
|
*
|
|
* This functions main purpose is to allocate the
|
|
* private structure for CHDLC protocol and bind it
|
|
* to dev->priv pointer.
|
|
*
|
|
* Also the dev->init pointer should also be initialized
|
|
* to the if_init() function.
|
|
*
|
|
* Any allocation necessary for the private strucutre
|
|
* should be done here, as well as proc/ file initializetion
|
|
* for the network interface.
|
|
*
|
|
* o parse media- and hardware-specific configuration
|
|
* o make sure that a new channel can be created
|
|
* o allocate resources, if necessary
|
|
* o prepare network device structure for registaration.
|
|
* o add network interface to the /proc/net/wanrouter
|
|
*
|
|
* The opposite of this function is del_if()
|
|
*
|
|
* Return: 0 o.k.
|
|
* < 0 failure (channel will not be created)
|
|
*/
|
|
static int new_if(wan_device_t *wandev, netdevice_t *dev, wanif_conf_t *conf)
|
|
{
|
|
sdla_t *card = wandev->private;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
int err = 0;
|
|
|
|
if (wandev->ndev)
|
|
return -EEXIST;
|
|
|
|
|
|
printk(KERN_INFO "%s: Configuring Interface: %s\n",
|
|
card->devname, conf->name);
|
|
|
|
if ((conf->name[0] == '\0') || (strlen(conf->name) > WAN_IFNAME_SZ)) {
|
|
|
|
printk(KERN_INFO "%s: Invalid interface name!\n",
|
|
card->devname);
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
/* allocate and initialize private data */
|
|
ppp_priv_area = kmalloc(sizeof(ppp_private_area_t), GFP_KERNEL);
|
|
|
|
if( ppp_priv_area == NULL ){
|
|
WAN_MEM_ASSERT(card->devname);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(ppp_priv_area, 0, sizeof(ppp_private_area_t));
|
|
|
|
ppp_priv_area->card = card;
|
|
|
|
/* initialize data */
|
|
strcpy(ppp_priv_area->if_name, conf->name);
|
|
|
|
/* initialize data in ppp_private_area structure */
|
|
|
|
init_ppp_priv_struct( ppp_priv_area );
|
|
|
|
ppp_priv_area->mc = conf->mc;
|
|
ppp_priv_area->pap = conf->pap;
|
|
ppp_priv_area->chap = conf->chap;
|
|
|
|
if(strcmp(conf->usedby, "WANPIPE") == 0) {
|
|
printk(KERN_INFO "%s: Running in WANPIPE IP mode!\n",
|
|
wandev->name);
|
|
ppp_priv_area->common.usedby = WANPIPE;
|
|
/* Option to bring down the interface when
|
|
* the link goes down */
|
|
if (conf->if_down){
|
|
set_bit(DYN_OPT_ON,&ppp_priv_area->interface_down);
|
|
printk("%s: Dynamic interface configuration enabled\n",
|
|
card->devname);
|
|
}
|
|
|
|
}else if (strcmp(conf->usedby, "BRIDGE")==0){
|
|
printk(KERN_INFO "%s:%s Running in WANPIPE BRIDGE mode!\n",
|
|
wandev->name,ppp_priv_area->if_name);
|
|
ppp_priv_area->common.usedby = BRIDGE;
|
|
|
|
}else if (strcmp(conf->usedby, "BRIDGE_N") == 0){
|
|
printk(KERN_INFO "%s:%s Running in WANPIPE BRIDGE NODE mode!\n",
|
|
wandev->name,ppp_priv_area->if_name);
|
|
ppp_priv_area->common.usedby = BRIDGE_NODE;
|
|
|
|
}else{
|
|
printk(KERN_INFO "%s:%s: Error: Invalid operation mode [WANPIPE|BRIDGE]\n",
|
|
card->devname,ppp_priv_area->if_name);
|
|
err=-EINVAL;
|
|
goto new_if_error;
|
|
}
|
|
|
|
/* If no user ids are specified */
|
|
if(!strlen(conf->userid) && (ppp_priv_area->pap||ppp_priv_area->chap)){
|
|
err=-EINVAL;
|
|
goto new_if_error;
|
|
}
|
|
|
|
/* If no passwords are specified */
|
|
if(!strlen(conf->passwd) && (ppp_priv_area->pap||ppp_priv_area->chap)){
|
|
err=-EINVAL;
|
|
goto new_if_error;
|
|
}
|
|
|
|
if(strlen(conf->sysname) > 31){
|
|
err=-EINVAL;
|
|
goto new_if_error;
|
|
}
|
|
|
|
/* If no system name is specified */
|
|
if(!strlen(conf->sysname) && (card->u.p.authenticator)){
|
|
err=-EINVAL;
|
|
goto new_if_error;
|
|
}
|
|
|
|
/* copy the data into the ppp private structure */
|
|
memcpy(ppp_priv_area->userid, conf->userid, strlen(conf->userid));
|
|
memcpy(ppp_priv_area->passwd, conf->passwd, strlen(conf->passwd));
|
|
memcpy(ppp_priv_area->sysname, conf->sysname, strlen(conf->sysname));
|
|
|
|
|
|
ppp_priv_area->enable_IPX = conf->enable_IPX;
|
|
if (conf->network_number){
|
|
ppp_priv_area->network_number = conf->network_number;
|
|
}else{
|
|
ppp_priv_area->network_number = 0xDEADBEEF;
|
|
}
|
|
|
|
/* Tells us that if this interface is a
|
|
* gateway or not */
|
|
if ((ppp_priv_area->gateway = conf->gateway) == WANOPT_YES){
|
|
printk(KERN_INFO "%s: Interface %s is set as a gateway.\n",
|
|
card->devname,ppp_priv_area->if_name);
|
|
}
|
|
|
|
/* Initialize the polling task routine */
|
|
WAN_TASKQ_INIT((&ppp_priv_area->poll_task),0,ppp_poll,dev);
|
|
|
|
/* Initialize the polling delay timer */
|
|
init_timer(&ppp_priv_area->poll_delay_timer);
|
|
ppp_priv_area->poll_delay_timer.data = (unsigned long)dev;
|
|
ppp_priv_area->poll_delay_timer.function = ppp_poll_delay;
|
|
|
|
/*
|
|
* Create interface file in proc fs.
|
|
* Once the proc file system is created, the new_if() function
|
|
* should exit successfuly.
|
|
*
|
|
* DO NOT place code under this function that can return
|
|
* anything else but 0.
|
|
*/
|
|
err = wanrouter_proc_add_interface(wandev,
|
|
&ppp_priv_area->dent,
|
|
ppp_priv_area->if_name,
|
|
dev);
|
|
if (err){
|
|
printk(KERN_INFO
|
|
"%s: can't create /proc/net/router/ppp/%s entry!\n",
|
|
card->devname, ppp_priv_area->if_name);
|
|
goto new_if_error;
|
|
}
|
|
|
|
dev->init = &if_init;
|
|
dev->priv = ppp_priv_area;
|
|
dev->mtu = wp_min(dev->mtu, card->wandev.mtu);
|
|
ppp_priv_area->ppp_state=WAN_DISCONNECTED;
|
|
|
|
/* Since we start with dummy IP addresses we can say
|
|
* that route exists */
|
|
printk(KERN_INFO "\n");
|
|
|
|
return 0;
|
|
|
|
new_if_error:
|
|
|
|
kfree(ppp_priv_area);
|
|
dev->priv=NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
/*============================================================================
|
|
* del_if - Delete logical channel.
|
|
*
|
|
* @wandev: Wanpipe private device pointer
|
|
* @dev: Netowrk interface pointer
|
|
*
|
|
* This function is called by ROUTER_DELIF ioctl call
|
|
* to deallocate the network interface.
|
|
*
|
|
* The network interface and the private structure are
|
|
* about to be deallocated by the upper layer.
|
|
* We have to clean and deallocate any allocated memory.
|
|
*
|
|
*/
|
|
static int del_if(wan_device_t *wandev, netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t* ppp_priv_area = dev->priv;
|
|
|
|
/* Delete interface name from proc fs. */
|
|
wanrouter_proc_delete_interface(wandev, ppp_priv_area->if_name);
|
|
return 0;
|
|
}
|
|
|
|
/*=============================================================
|
|
* disable_comm - Main shutdown function
|
|
*
|
|
* @card: Wanpipe device pointer
|
|
*
|
|
* The command 'wanrouter stop' has been called
|
|
* and the whole wanpipe device is going down.
|
|
* This is the last function called to disable
|
|
* all comunications and deallocate any memory
|
|
* that is still allocated.
|
|
*
|
|
* o Disable communications, turn off interrupts
|
|
* o Deallocate memory used
|
|
* o Unconfigure TE1 card
|
|
*/
|
|
|
|
static void disable_comm (sdla_t *card)
|
|
{
|
|
unsigned long smp_flags;
|
|
|
|
wan_spin_lock_irq(&card->wandev.lock,&smp_flags);
|
|
ppp_comm_disable_shutdown(card);
|
|
wan_spin_unlock_irq(&card->wandev.lock,&smp_flags);
|
|
|
|
/* TE1 unconfiging */
|
|
if (IS_TE1_CARD(card)) {
|
|
if (card->wandev.fe_iface.unconfig){
|
|
card->wandev.fe_iface.unconfig(&card->fe);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
/****** Network Device Interface ********************************************/
|
|
|
|
/*============================================================================
|
|
* Initialize Linux network interface.
|
|
*
|
|
* This routine is called only once for each interface, during Linux network
|
|
* interface registration. Returning anything but zero will fail interface
|
|
* registration.
|
|
*/
|
|
static int if_init(netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t *ppp_priv_area = dev->priv;
|
|
sdla_t *card = ppp_priv_area->card;
|
|
wan_device_t *wandev = &card->wandev;
|
|
|
|
/* Initialize device driver entry points */
|
|
dev->open = &if_open;
|
|
dev->stop = &if_close;
|
|
dev->hard_header = NULL;
|
|
dev->rebuild_header = NULL;
|
|
dev->hard_start_xmit = &if_send;
|
|
dev->get_stats = &if_stats;
|
|
#if defined(LINUX_2_4)||defined(LINUX_2_6)
|
|
dev->tx_timeout = &if_tx_timeout;
|
|
dev->watchdog_timeo = TX_TIMEOUT;
|
|
#endif
|
|
|
|
if (ppp_priv_area->common.usedby == BRIDGE ||
|
|
ppp_priv_area->common.usedby == BRIDGE_NODE){
|
|
|
|
/* Setup the interface for Bridging */
|
|
int hw_addr=0;
|
|
ether_setup(dev);
|
|
|
|
/* Use a random number to generate the MAC address */
|
|
memcpy(dev->dev_addr, "\x00\xFC\x00\x00\x00\x00", 6);
|
|
get_random_bytes(&hw_addr, sizeof(hw_addr));
|
|
*(int *)(dev->dev_addr + 2) += hw_addr;
|
|
|
|
}else{
|
|
/* Initialize media-specific parameters */
|
|
dev->type = ARPHRD_PPP; /* ARP h/w type */
|
|
dev->flags |= IFF_POINTOPOINT;
|
|
dev->flags |= IFF_NOARP;
|
|
|
|
/* Enable Mulitcasting if specified by user*/
|
|
if (ppp_priv_area->mc == WANOPT_YES){
|
|
dev->flags |= IFF_MULTICAST;
|
|
}
|
|
|
|
dev->mtu = wandev->mtu;
|
|
dev->hard_header_len = 0; /* media header length */
|
|
}
|
|
|
|
/* Initialize hardware parameters (just for reference) */
|
|
dev->irq = wandev->irq;
|
|
dev->dma = wandev->dma;
|
|
dev->base_addr = wandev->ioport;
|
|
card->hw_iface.getcfg(card->hw, SDLA_MEMBASE, &dev->mem_start);
|
|
card->hw_iface.getcfg(card->hw, SDLA_MEMEND, &dev->mem_end);
|
|
|
|
/* Set transmit buffer queue length */
|
|
dev->tx_queue_len = 100;
|
|
|
|
/* SNMP */
|
|
dev->do_ioctl = if_do_ioctl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Open network interface.
|
|
* o enable communications and interrupts.
|
|
* o prevent module from unloading by incrementing use count
|
|
*
|
|
* Return 0 if O.k. or errno.
|
|
*/
|
|
static int if_open (netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t *ppp_priv_area = dev->priv;
|
|
sdla_t *card = ppp_priv_area->card;
|
|
struct timeval tv;
|
|
|
|
if (open_dev_check(dev))
|
|
return -EBUSY;
|
|
|
|
wanpipe_open(card);
|
|
|
|
netif_start_queue(dev);
|
|
|
|
do_gettimeofday( &tv );
|
|
ppp_priv_area->router_start_time = tv.tv_sec;
|
|
|
|
/* We cannot configure the card here because we don't
|
|
* have access to the interface IP addresses.
|
|
* Once the interface initilization is complete, we will be
|
|
* able to access the IP addresses. Therefore,
|
|
* configure the ppp link in the poll routine */
|
|
set_bit(0,&ppp_priv_area->config_ppp);
|
|
ppp_priv_area->config_wait_timeout=jiffies;
|
|
|
|
/* Start the PPP configuration after 1sec delay.
|
|
* This will give the interface initilization time
|
|
* to finish its configuration */
|
|
del_timer(&ppp_priv_area->poll_delay_timer);
|
|
ppp_priv_area->poll_delay_timer.expires = jiffies+HZ;
|
|
add_timer(&ppp_priv_area->poll_delay_timer);
|
|
return 0;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Close network interface.
|
|
* o if this is the last open, then disable communications and interrupts.
|
|
* o reset flags.
|
|
*/
|
|
static int if_close(netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t *ppp_priv_area = dev->priv;
|
|
sdla_t *card = ppp_priv_area->card;
|
|
|
|
stop_net_queue(dev);
|
|
#if defined(LINUX_2_1)
|
|
dev->start=0;
|
|
#endif
|
|
wanpipe_close(card);
|
|
|
|
del_timer (&ppp_priv_area->poll_delay_timer);
|
|
return 0;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Handle transmit timeout event from netif watchdog
|
|
*/
|
|
static void if_tx_timeout (netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t* chan = dev->priv;
|
|
sdla_t *card = chan->card;
|
|
|
|
/* If our device stays busy for at least 5 seconds then we will
|
|
* kick start the device by making dev->tbusy = 0. We expect
|
|
* that our device never stays busy more than 5 seconds. So this
|
|
* is only used as a last resort.
|
|
*/
|
|
|
|
++ chan->if_send_stat.if_send_tbusy;
|
|
++card->wandev.stats.collisions;
|
|
|
|
printk (KERN_INFO "%s: Transmit timed out on %s\n", card->devname,dev->name);
|
|
++chan->if_send_stat.if_send_tbusy_timeout;
|
|
netif_wake_queue (dev);
|
|
}
|
|
|
|
|
|
|
|
/*============================================================================
|
|
* Send a packet on a network interface.
|
|
* o set tbusy flag (marks start of the transmission) to block a timer-based
|
|
* transmit from overlapping.
|
|
* o check link state. If link is not up, then drop the packet.
|
|
* o execute adapter send command.
|
|
* o free socket buffer
|
|
*
|
|
* Return: 0 complete (socket buffer must be freed)
|
|
* non-0 packet may be re-transmitted (tbusy must be set)
|
|
*
|
|
* Notes:
|
|
* 1. This routine is called either by the protocol stack or by the "net
|
|
* bottom half" (with interrupts enabled).
|
|
* 2. Setting tbusy flag will inhibit further transmit requests from the
|
|
* protocol stack and can be used for flow control with protocol layer.
|
|
*/
|
|
static int if_send (struct sk_buff *skb, netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t *ppp_priv_area = dev->priv;
|
|
sdla_t *card = ppp_priv_area->card;
|
|
unsigned char *sendpacket;
|
|
unsigned long smp_flags=0;
|
|
int udp_type;
|
|
int err=0;
|
|
|
|
++ppp_priv_area->if_send_stat.if_send_entry;
|
|
|
|
netif_stop_queue(dev);
|
|
|
|
if (skb == NULL) {
|
|
|
|
/* If we get here, some higher layer thinks we've missed an
|
|
* tx-done interrupt.
|
|
*/
|
|
printk(KERN_INFO "%s: interface %s got kicked!\n",
|
|
card->devname, dev->name);
|
|
|
|
++ppp_priv_area->if_send_stat.if_send_skb_null;
|
|
|
|
wake_net_dev(dev);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(LINUX_2_1)
|
|
if (dev->tbusy) {
|
|
++ppp_priv_area->if_send_stat.if_send_tbusy;
|
|
++card->wandev.stats.collisions;
|
|
|
|
if ((jiffies - ppp_priv_area->tick_counter) < (5*HZ)) {
|
|
return 1;
|
|
}
|
|
|
|
if_tx_timeout(dev);
|
|
}
|
|
#endif
|
|
|
|
sendpacket = skb->data;
|
|
|
|
udp_type = udp_pkt_type( skb, card );
|
|
|
|
|
|
if (udp_type == UDP_PTPIPE_TYPE){
|
|
|
|
if(store_udp_mgmt_pkt(UDP_PKT_FRM_STACK, card, skb, dev,
|
|
ppp_priv_area)){
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
}
|
|
++ppp_priv_area->if_send_stat.if_send_PIPE_request;
|
|
start_net_queue(dev);
|
|
return 0;
|
|
}
|
|
|
|
/* Check for broadcast and multicast addresses
|
|
* If found, drop (deallocate) a packet and return.
|
|
*/
|
|
if(chk_bcast_mcast_addr(card, dev, skb)){
|
|
++card->wandev.stats.tx_dropped;
|
|
wan_dev_kfree_skb(skb,FREE_WRITE);
|
|
start_net_queue(dev);
|
|
return 0;
|
|
}
|
|
|
|
|
|
if(card->type != SDLA_S514){
|
|
s508_lock(card,&smp_flags);
|
|
}
|
|
|
|
if (test_and_set_bit(SEND_CRIT, (void*)&card->wandev.critical)) {
|
|
|
|
printk(KERN_INFO "%s: Critical in if_send: %lx\n",
|
|
card->wandev.name,card->wandev.critical);
|
|
|
|
++card->wandev.stats.tx_dropped;
|
|
++ppp_priv_area->if_send_stat.if_send_critical_non_ISR;
|
|
start_net_queue(dev);
|
|
goto if_send_exit_crit;
|
|
}
|
|
|
|
if (card->wandev.state != WAN_CONNECTED) {
|
|
|
|
++ppp_priv_area->if_send_stat.if_send_wan_disconnected;
|
|
++card->wandev.stats.tx_dropped;
|
|
start_net_queue(dev);
|
|
|
|
} else if (!skb->protocol) {
|
|
++ppp_priv_area->if_send_stat.if_send_protocol_error;
|
|
++card->wandev.stats.tx_errors;
|
|
start_net_queue(dev);
|
|
|
|
} else {
|
|
|
|
/*If it's IPX change the network numbers to 0 if they're ours.*/
|
|
if( skb->protocol == htons(ETH_P_IPX) ) {
|
|
if(ppp_priv_area->enable_IPX) {
|
|
switch_net_numbers( skb->data,
|
|
ppp_priv_area->network_number, 0);
|
|
} else {
|
|
++card->wandev.stats.tx_dropped;
|
|
start_net_queue(dev);
|
|
goto if_send_exit_crit;
|
|
}
|
|
}
|
|
|
|
err=ppp_send(card, skb->data, skb->len, skb->protocol);
|
|
|
|
if (err) {
|
|
err=-1;
|
|
stop_net_queue(dev);
|
|
++ppp_priv_area->if_send_stat.if_send_adptr_bfrs_full;
|
|
++ppp_priv_area->if_send_stat.if_send_tx_int_enabled;
|
|
}else{
|
|
++ppp_priv_area->if_send_stat.if_send_bfr_passed_to_adptr;
|
|
++card->wandev.stats.tx_packets;
|
|
card->wandev.stats.tx_bytes += skb->len;
|
|
start_net_queue(dev);
|
|
#if defined(LINUX_2_4)||defined(LINUX_2_6)
|
|
dev->trans_start = jiffies;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if_send_exit_crit:
|
|
|
|
if (err==0){
|
|
wan_dev_kfree_skb(skb, FREE_WRITE);
|
|
}else{
|
|
ppp_priv_area->tick_counter = jiffies;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TXRDY);
|
|
}
|
|
|
|
clear_bit(SEND_CRIT,&card->wandev.critical);
|
|
if(card->type != SDLA_S514){
|
|
s508_unlock(card,&smp_flags);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* if_do_ioctl - Ioctl handler for fr
|
|
* @dev: Device subject to ioctl
|
|
* @ifr: Interface request block from the user
|
|
* @cmd: Command that is being issued
|
|
*
|
|
* This function handles the ioctls that may be issued by the user
|
|
* to control the settings of a FR. It does both busy
|
|
* and security checks. This function is intended to be wrapped by
|
|
* callers who wish to add additional ioctl calls of their own.
|
|
*/
|
|
/* SNMP */
|
|
static int if_do_ioctl(netdevice_t *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
ppp_private_area_t* chan= (ppp_private_area_t*)dev->priv;
|
|
unsigned long smp_flags;
|
|
sdla_t *card;
|
|
wan_udp_pkt_t *wan_udp_pkt;
|
|
|
|
if (!chan){
|
|
return -ENODEV;
|
|
}
|
|
card=chan->card;
|
|
|
|
NET_ADMIN_CHECK();
|
|
|
|
switch(cmd)
|
|
{
|
|
case SIOC_WANPIPE_SNMP:
|
|
case SIOC_WANPIPE_SNMP_IFSPEED:
|
|
return wan_snmp_data(card, dev, cmd, ifr);
|
|
|
|
|
|
case SIOC_WANPIPE_PIPEMON:
|
|
|
|
if (atomic_read(&chan->udp_pkt_len) != 0){
|
|
return -EBUSY;
|
|
}
|
|
|
|
atomic_set(&chan->udp_pkt_len,MAX_LGTH_UDP_MGNT_PKT);
|
|
|
|
/* For performance reasons test the critical
|
|
* here before spin lock */
|
|
if (test_bit(0,&card->in_isr)){
|
|
atomic_set(&chan->udp_pkt_len,0);
|
|
return -EBUSY;
|
|
}
|
|
|
|
wan_udp_pkt=(wan_udp_pkt_t*)chan->udp_pkt_data;
|
|
if (copy_from_user(&wan_udp_pkt->wan_udp_hdr,ifr->ifr_data,MAX_LGTH_UDP_MGNT_PKT)){
|
|
atomic_set(&chan->udp_pkt_len,0);
|
|
return -EFAULT;
|
|
}
|
|
|
|
spin_lock_irqsave(&card->wandev.lock, smp_flags);
|
|
|
|
/* We have to check here again because we don't know
|
|
* what happened during spin_lock */
|
|
if (test_bit(0,&card->in_isr)){
|
|
printk(KERN_INFO "%s:%s Pipemon failed, driver busy: try again.\n",
|
|
card->devname,dev->name);
|
|
atomic_set(&chan->udp_pkt_len,0);
|
|
spin_unlock_irqrestore(&card->wandev.lock, smp_flags);
|
|
return -EBUSY;
|
|
}
|
|
|
|
process_udp_mgmt_pkt(card,dev,chan,1);
|
|
|
|
spin_unlock_irqrestore(&card->wandev.lock, smp_flags);
|
|
|
|
/* This area will still be critical to other
|
|
* PIPEMON commands due to udp_pkt_len
|
|
* thus we can release the irq */
|
|
|
|
if (atomic_read(&chan->udp_pkt_len) > MAX_LGTH_UDP_MGNT_PKT){
|
|
printk(KERN_INFO "%s: Error, pipemon buf too big on the way up! %i\n",
|
|
card->devname,atomic_read(&chan->udp_pkt_len));
|
|
atomic_set(&chan->udp_pkt_len,0);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (copy_to_user(ifr->ifr_data,&wan_udp_pkt->wan_udp_hdr,sizeof(wan_udp_hdr_t))){
|
|
atomic_set(&chan->udp_pkt_len,0);
|
|
return -EFAULT;
|
|
}
|
|
|
|
atomic_set(&chan->udp_pkt_len,0);
|
|
return 0;
|
|
|
|
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*=============================================================================
|
|
* Store a UDP management packet for later processing.
|
|
*/
|
|
|
|
static int store_udp_mgmt_pkt(char udp_pkt_src, sdla_t* card,
|
|
struct sk_buff *skb, netdevice_t* dev,
|
|
ppp_private_area_t* ppp_priv_area )
|
|
{
|
|
int udp_pkt_stored = 0;
|
|
|
|
if(!atomic_read(&ppp_priv_area->udp_pkt_len) && (skb->len<=MAX_LGTH_UDP_MGNT_PKT)){
|
|
atomic_set(&ppp_priv_area->udp_pkt_len,skb->len);
|
|
ppp_priv_area->udp_pkt_src = udp_pkt_src;
|
|
|
|
memcpy(ppp_priv_area->udp_pkt_data, skb->data, skb->len);
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_UDP;
|
|
|
|
ppp_priv_area->protocol = skb->protocol;
|
|
udp_pkt_stored = 1;
|
|
}else{
|
|
if (skb->len > MAX_LGTH_UDP_MGNT_PKT){
|
|
printk(KERN_INFO "%s: Pipemon UDP request too long : %i\n",
|
|
card->devname, skb->len);
|
|
}else{
|
|
printk(KERN_INFO "%s: Pipemon UPD request already pending\n",
|
|
card->devname);
|
|
}
|
|
}
|
|
|
|
if(udp_pkt_src == UDP_PKT_FRM_STACK){
|
|
wan_dev_kfree_skb(skb, FREE_WRITE);
|
|
}else{
|
|
wan_dev_kfree_skb(skb, FREE_READ);
|
|
}
|
|
|
|
return(udp_pkt_stored);
|
|
}
|
|
|
|
|
|
|
|
/*============================================================================
|
|
* Reply to UDP Management system.
|
|
* Return length of reply.
|
|
*/
|
|
static int reply_udp( unsigned char *data, unsigned int mbox_len )
|
|
{
|
|
unsigned short len, udp_length, temp, ip_length;
|
|
unsigned long ip_temp;
|
|
int even_bound = 0;
|
|
wan_udp_pkt_t *p_udp_pkt = (wan_udp_pkt_t *)data;
|
|
|
|
/* Set length of packet */
|
|
len = sizeof(struct iphdr)+
|
|
sizeof(struct udphdr)+
|
|
sizeof(wan_mgmt_t)+
|
|
sizeof(wan_cmd_t)+
|
|
mbox_len;
|
|
|
|
/* fill in UDP reply */
|
|
p_udp_pkt->wan_udp_request_reply = UDPMGMT_REPLY;
|
|
|
|
/* fill in UDP length */
|
|
udp_length = sizeof(struct udphdr)+
|
|
sizeof(wan_mgmt_t)+
|
|
sizeof(wan_cmd_t)+
|
|
mbox_len;
|
|
|
|
|
|
/* put it on an even boundary */
|
|
if ( udp_length & 0x0001 ) {
|
|
udp_length += 1;
|
|
len += 1;
|
|
even_bound=1;
|
|
}
|
|
|
|
temp = (udp_length<<8)|(udp_length>>8);
|
|
p_udp_pkt->wan_udp_len = temp;
|
|
|
|
|
|
/* swap UDP ports */
|
|
temp = p_udp_pkt->wan_udp_sport;
|
|
p_udp_pkt->wan_udp_sport =
|
|
p_udp_pkt->wan_udp_dport;
|
|
p_udp_pkt->wan_udp_dport = temp;
|
|
|
|
|
|
/* add UDP pseudo header */
|
|
temp = 0x1100;
|
|
*((unsigned short *)(p_udp_pkt->wan_udp_data+mbox_len+even_bound)) = temp;
|
|
temp = (udp_length<<8)|(udp_length>>8);
|
|
*((unsigned short *)(p_udp_pkt->wan_udp_data+mbox_len+even_bound+2)) = temp;
|
|
|
|
/* calculate UDP checksum */
|
|
p_udp_pkt->wan_udp_sum = 0;
|
|
p_udp_pkt->wan_udp_sum =
|
|
calc_checksum(&data[UDP_OFFSET],udp_length+UDP_OFFSET);
|
|
|
|
/* fill in IP length */
|
|
ip_length = udp_length + sizeof(struct iphdr);
|
|
temp = (ip_length<<8)|(ip_length>>8);
|
|
p_udp_pkt->wan_ip_len = temp;
|
|
|
|
/* swap IP addresses */
|
|
ip_temp = p_udp_pkt->wan_ip_src;
|
|
p_udp_pkt->wan_ip_src = p_udp_pkt->wan_ip_dst;
|
|
p_udp_pkt->wan_ip_dst = ip_temp;
|
|
|
|
/* fill in IP checksum */
|
|
p_udp_pkt->wan_ip_sum = 0;
|
|
p_udp_pkt->wan_ip_sum = calc_checksum(data,sizeof(struct iphdr));
|
|
|
|
return len;
|
|
|
|
} /* reply_udp */
|
|
|
|
unsigned short calc_checksum (char *data, int len)
|
|
{
|
|
unsigned short temp;
|
|
unsigned long sum=0;
|
|
int i;
|
|
|
|
for( i = 0; i <len; i+=2 ) {
|
|
memcpy(&temp,&data[i],2);
|
|
sum += (unsigned long)temp;
|
|
}
|
|
|
|
while (sum >> 16 ) {
|
|
sum = (sum & 0xffffUL) + (sum >> 16);
|
|
}
|
|
|
|
temp = (unsigned short)sum;
|
|
temp = ~temp;
|
|
|
|
if( temp == 0 )
|
|
temp = 0xffff;
|
|
|
|
return temp;
|
|
}
|
|
|
|
/*
|
|
If incoming is 0 (outgoing)- if the net numbers is ours make it 0
|
|
if incoming is 1 - if the net number is 0 make it ours
|
|
|
|
*/
|
|
static void switch_net_numbers(unsigned char *sendpacket, unsigned long network_number, unsigned char incoming)
|
|
{
|
|
unsigned long pnetwork_number;
|
|
|
|
pnetwork_number = (unsigned long)((sendpacket[6] << 24) +
|
|
(sendpacket[7] << 16) + (sendpacket[8] << 8) +
|
|
sendpacket[9]);
|
|
|
|
if (!incoming) {
|
|
//If the destination network number is ours, make it 0
|
|
if( pnetwork_number == network_number) {
|
|
sendpacket[6] = sendpacket[7] = sendpacket[8] =
|
|
sendpacket[9] = 0x00;
|
|
}
|
|
} else {
|
|
//If the incoming network is 0, make it ours
|
|
if( pnetwork_number == 0) {
|
|
sendpacket[6] = (unsigned char)(network_number >> 24);
|
|
sendpacket[7] = (unsigned char)((network_number &
|
|
0x00FF0000) >> 16);
|
|
sendpacket[8] = (unsigned char)((network_number &
|
|
0x0000FF00) >> 8);
|
|
sendpacket[9] = (unsigned char)(network_number &
|
|
0x000000FF);
|
|
}
|
|
}
|
|
|
|
|
|
pnetwork_number = (unsigned long)((sendpacket[18] << 24) +
|
|
(sendpacket[19] << 16) + (sendpacket[20] << 8) +
|
|
sendpacket[21]);
|
|
|
|
if( !incoming ) {
|
|
//If the source network is ours, make it 0
|
|
if( pnetwork_number == network_number) {
|
|
sendpacket[18] = sendpacket[19] = sendpacket[20] =
|
|
sendpacket[21] = 0x00;
|
|
}
|
|
} else {
|
|
//If the source network is 0, make it ours
|
|
if( pnetwork_number == 0 ) {
|
|
sendpacket[18] = (unsigned char)(network_number >> 24);
|
|
sendpacket[19] = (unsigned char)((network_number &
|
|
0x00FF0000) >> 16);
|
|
sendpacket[20] = (unsigned char)((network_number &
|
|
0x0000FF00) >> 8);
|
|
sendpacket[21] = (unsigned char)(network_number &
|
|
0x000000FF);
|
|
}
|
|
}
|
|
} /* switch_net_numbers */
|
|
|
|
/*============================================================================
|
|
* Get ethernet-style interface statistics.
|
|
* Return a pointer to struct net_device_stats.
|
|
*/
|
|
static struct net_device_stats *if_stats(netdevice_t *dev)
|
|
{
|
|
|
|
ppp_private_area_t *ppp_priv_area = dev->priv;
|
|
sdla_t* card;
|
|
|
|
if( ppp_priv_area == NULL )
|
|
return NULL;
|
|
|
|
card = ppp_priv_area->card;
|
|
return &card->wandev.stats;
|
|
}
|
|
|
|
|
|
/****** PPP Firmware Interface Functions ************************************/
|
|
|
|
/*============================================================================
|
|
* Read TE1/56K Front end registers
|
|
*/
|
|
//static unsigned char read_front_end_reg (void* card1, unsigned short reg)
|
|
static unsigned char read_front_end_reg (void* card1, ...)
|
|
{
|
|
va_list args;
|
|
sdla_t *card = (sdla_t*)card1;
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
char *data = mb->wan_data;
|
|
u16 reg, line_no;
|
|
int err;
|
|
|
|
va_start(args, card1);
|
|
line_no = (u16)va_arg(args, int);
|
|
reg = (u16)va_arg(args, int);
|
|
va_end(args);
|
|
|
|
((FRONT_END_REG_STRUCT *)data)->register_number = (unsigned short)reg;
|
|
mb->wan_data_len = sizeof(FRONT_END_REG_STRUCT);
|
|
mb->wan_command = READ_FRONT_END_REGISTER;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != CMD_OK)
|
|
ppp_error(card,err,mb);
|
|
|
|
return(((FRONT_END_REG_STRUCT *)data)->register_value);
|
|
}
|
|
|
|
/*============================================================================
|
|
* Write to TE1/56K Front end registers
|
|
*/
|
|
//static unsigned char write_front_end_reg (void* card1, unsigned short reg, unsigned char value)
|
|
static int write_front_end_reg (void* card1, ...)
|
|
{
|
|
va_list args;
|
|
sdla_t *card = (sdla_t*)card1;
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
char *data = mb->wan_data;
|
|
u16 reg, line_no;
|
|
u8 value;
|
|
int err;
|
|
int retry=15;
|
|
|
|
va_start(args, card1);
|
|
line_no = (u16)va_arg(args, int);
|
|
reg = (u16)va_arg(args, int);
|
|
value = (u8)va_arg(args, int);
|
|
va_end(args);
|
|
|
|
do {
|
|
((FRONT_END_REG_STRUCT *)data)->register_number = (unsigned short)reg;
|
|
((FRONT_END_REG_STRUCT *)data)->register_value = value;
|
|
mb->wan_data_len = sizeof(FRONT_END_REG_STRUCT);
|
|
mb->wan_command = WRITE_FRONT_END_REGISTER;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != CMD_OK){
|
|
ppp_error(card,err,mb);
|
|
}
|
|
}while(err && --retry);
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
/*============================================================================
|
|
* Enable timer interrupt
|
|
*/
|
|
static void ppp_enable_timer (void* card_id)
|
|
{
|
|
netdevice_t *dev;
|
|
sdla_t* card = (sdla_t*)card_id;
|
|
ppp_private_area_t* ppp_priv_area;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return;
|
|
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_TE;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
return;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Read firmware code version.
|
|
* Put code version as ASCII string in str.
|
|
*/
|
|
static int ppp_read_version(sdla_t *card, char *str)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_READ_CODE_VERSION;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK)
|
|
|
|
ppp_error(card, err, mb);
|
|
|
|
else if (str) {
|
|
|
|
int len = mb->wan_data_len;
|
|
|
|
memcpy(str, mb->wan_data, len);
|
|
str[len] = '\0';
|
|
|
|
}
|
|
|
|
return err;
|
|
}
|
|
/*===========================================================================
|
|
* Set Out-Bound Authentication.
|
|
*/
|
|
static int ppp_set_outbnd_auth (sdla_t *card, ppp_private_area_t *ppp_priv_area)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
memset(&mb->wan_data, 0, (strlen(ppp_priv_area->sysname) + strlen(ppp_priv_area->userid) +
|
|
strlen(ppp_priv_area->passwd) + 3));
|
|
memcpy(mb->wan_data, ppp_priv_area->sysname, strlen(ppp_priv_area->sysname));
|
|
memcpy((mb->wan_data + strlen(ppp_priv_area->sysname) + 1),
|
|
ppp_priv_area->userid, strlen(ppp_priv_area->userid));
|
|
memcpy((mb->wan_data + strlen(ppp_priv_area->sysname) + strlen(ppp_priv_area->userid) + 2),
|
|
ppp_priv_area->passwd, strlen(ppp_priv_area->passwd));
|
|
|
|
mb->wan_data_len = strlen(ppp_priv_area->sysname) + strlen(ppp_priv_area->userid) +
|
|
strlen(ppp_priv_area->passwd) + 3 ;
|
|
|
|
mb->wan_command = PPP_SET_OUTBOUND_AUTH;
|
|
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*===========================================================================
|
|
* Set In-Bound Authentication.
|
|
*/
|
|
static int ppp_set_inbnd_auth (sdla_t *card, ppp_private_area_t *ppp_priv_area)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err, i;
|
|
char* user_tokens[32];
|
|
char* pass_tokens[32];
|
|
int userids, passwds;
|
|
int add_ptr;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
memset(&mb->wan_data, 0, 1008);
|
|
memcpy(mb->wan_data, ppp_priv_area->sysname,
|
|
strlen(ppp_priv_area->sysname));
|
|
|
|
/* Parse the userid string and the password string and build a string
|
|
to copy it to the data area of the command structure. The string
|
|
will look like "SYS_NAME<NULL>USER1<NULL>PASS1<NULL>USER2<NULL>PASS2
|
|
....<NULL> "
|
|
*/
|
|
userids = tokenize(ppp_priv_area->userid, user_tokens);
|
|
passwds = tokenize(ppp_priv_area->passwd, pass_tokens);
|
|
|
|
if (userids != passwds){
|
|
printk(KERN_INFO "%s: Number of passwords does not equal the number of user ids\n",
|
|
card->devname);
|
|
return 1;
|
|
}
|
|
|
|
add_ptr = strlen(ppp_priv_area->sysname) + 1;
|
|
for (i=0; i<userids; i++){
|
|
memcpy((mb->wan_data + add_ptr), user_tokens[i],
|
|
strlen(user_tokens[i]));
|
|
memcpy((mb->wan_data + add_ptr + strlen(user_tokens[i]) + 1),
|
|
pass_tokens[i], strlen(pass_tokens[i]));
|
|
add_ptr = add_ptr + strlen(user_tokens[i]) + 1 +
|
|
strlen(pass_tokens[i]) + 1;
|
|
}
|
|
|
|
mb->wan_data_len = add_ptr + 1;
|
|
mb->wan_command = PPP_SET_INBOUND_AUTH;
|
|
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
/*============================================================================
|
|
* Tokenize string.
|
|
* Parse a string of the following syntax:
|
|
* <arg1>,<arg2>,...
|
|
* and fill array of tokens with pointers to string elements.
|
|
*
|
|
*/
|
|
static int tokenize (char *str, char **tokens)
|
|
{
|
|
int cnt = 0;
|
|
tokens[0] = strsep(&str, "/");
|
|
while (tokens[cnt] && (cnt < 32 - 1))
|
|
{
|
|
tokens[cnt] = str_strip(tokens[cnt], " \t");
|
|
tokens[++cnt] = strsep(&str, "/");
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Strip leading and trailing spaces off the string str.
|
|
*/
|
|
static char* str_strip (char *str, char* s)
|
|
{
|
|
char *eos = str + strlen(str); /* -> end of string */
|
|
|
|
while (*str && strchr(s, *str))
|
|
++str /* strip leading spaces */
|
|
;
|
|
while ((eos > str) && strchr(s, *(eos - 1)))
|
|
--eos /* strip trailing spaces */
|
|
;
|
|
*eos = '\0';
|
|
return str;
|
|
}
|
|
/*============================================================================
|
|
* Configure PPP firmware.
|
|
*/
|
|
static int ppp_configure(sdla_t *card, void *data)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int data_len = sizeof(ppp508_conf_t);
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
memcpy(mb->wan_data, data, data_len);
|
|
mb->wan_data_len = data_len;
|
|
mb->wan_command = PPP_SET_CONFIG;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Set interrupt mode.
|
|
*/
|
|
static int ppp_set_intr_mode(sdla_t *card, unsigned char mode)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
ppp_intr_info_t *ppp_intr_data = (ppp_intr_info_t *) &mb->wan_data[0];
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
ppp_intr_data->i_enable = mode;
|
|
|
|
ppp_intr_data->irq = card->wandev.irq; // ALEX_TODAY card->hw.irq;
|
|
mb->wan_data_len = 2;
|
|
|
|
/* If timer has been enabled, set the timer delay to 1sec */
|
|
if (mode & 0x80){
|
|
ppp_intr_data->timer_len = 20; //5;//100; //250;
|
|
mb->wan_data_len = 4;
|
|
}
|
|
|
|
mb->wan_command = PPP_SET_INTR_FLAGS;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
|
|
|
|
return err;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Enable communications.
|
|
*/
|
|
static int ppp_comm_enable(sdla_t *card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_COMM_ENABLE;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
else
|
|
card->u.p.comm_enabled = 1;
|
|
|
|
return err;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Disable communications.
|
|
*/
|
|
static int ppp_comm_disable(sdla_t *card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_COMM_DISABLE;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
else
|
|
card->u.p.comm_enabled = 0;
|
|
|
|
return err;
|
|
}
|
|
|
|
static int ppp_comm_disable_shutdown(sdla_t *card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
ppp_intr_info_t *ppp_intr_data;
|
|
int err;
|
|
|
|
if (!mb){
|
|
return 1;
|
|
}
|
|
|
|
ppp_intr_data = (ppp_intr_info_t *) &mb->wan_data[0];
|
|
|
|
/* Disable all interrupts */
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
ppp_intr_data->i_enable = 0;
|
|
|
|
ppp_intr_data->irq = card->wandev.irq; // ALEX_TODAY card->hw.irq;
|
|
mb->wan_data_len = 2;
|
|
|
|
mb->wan_command = PPP_SET_INTR_FLAGS;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
/* Disable communicatinons */
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_COMM_DISABLE;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
card->u.p.comm_enabled = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*============================================================================
|
|
* Get communications error statistics.
|
|
*/
|
|
static int ppp_get_err_stats(sdla_t *card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_READ_ERROR_STATS;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err == CMD_OK) {
|
|
|
|
ppp_err_stats_t* stats = (void*)mb->wan_data;
|
|
card->wandev.stats.rx_over_errors = stats->rx_overrun;
|
|
card->wandev.stats.rx_crc_errors = stats->rx_bad_crc;
|
|
card->wandev.stats.rx_missed_errors = stats->rx_abort;
|
|
card->wandev.stats.rx_length_errors = stats->rx_lost;
|
|
card->wandev.stats.tx_aborted_errors = stats->tx_abort;
|
|
|
|
} else
|
|
ppp_error(card, err, mb);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Get communications error statistics.
|
|
*/
|
|
#if 0
|
|
static int ppp_get_stats(sdla_t *card)
|
|
{
|
|
wan_mbox_t *mb = card->mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_READ_STATISTICS;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != WAN_CMD_OK){
|
|
ppp_error(card, err, mb);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
static int ppp_get_pkt_stats(sdla_t* card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_READ_PACKET_STATS;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != WAN_CMD_OK){
|
|
ppp_error(card, err, mb);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static int ppp_get_lcp_stats(sdla_t* card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err;
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_command = PPP_READ_LCP_STATS;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != WAN_CMD_OK){
|
|
ppp_error(card, err, mb);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Send packet.
|
|
* Return: 0 - o.k.
|
|
* 1 - no transmit buffers available
|
|
*/
|
|
static int ppp_send (sdla_t *card, void *data, unsigned len, unsigned proto)
|
|
{
|
|
ppp_buf_ctl_t txbuf;
|
|
|
|
card->hw_iface.peek(card->hw, card->u.p.txbuf_off, &txbuf, sizeof(txbuf));
|
|
if (txbuf.flag)
|
|
return 1;
|
|
|
|
card->hw_iface.poke(card->hw, txbuf.buf.ptr, data, len);
|
|
|
|
txbuf.length = len; /* frame length */
|
|
if (proto == htons(ETH_P_IPX)){
|
|
txbuf.proto = 0x01; /* protocol ID */
|
|
}else{
|
|
txbuf.proto = 0x00; /* protocol ID */
|
|
}
|
|
card->hw_iface.poke(card->hw, card->u.p.txbuf_off, &txbuf, sizeof(txbuf));
|
|
|
|
txbuf.flag = 1; /* start transmission */
|
|
card->hw_iface.poke(card->hw, card->u.p.txbuf_off, &txbuf, sizeof(txbuf));
|
|
|
|
/* Update transmit buffer control fields */
|
|
card->u.p.txbuf_off += sizeof(txbuf);
|
|
|
|
if (card->u.p.txbuf_off > card->u.p.txbuf_last_off)
|
|
card->u.p.txbuf_off = card->u.p.txbuf_base_off;
|
|
return 0;
|
|
}
|
|
|
|
/****** Firmware Error Handler **********************************************/
|
|
|
|
/*============================================================================
|
|
* Firmware error handler.
|
|
* This routine is called whenever firmware command returns non-zero
|
|
* return code.
|
|
*
|
|
* Return zero if previous command has to be cancelled.
|
|
*/
|
|
static int ppp_error(sdla_t *card, int err, wan_mbox_t *mb)
|
|
{
|
|
unsigned cmd = mb->wan_command;
|
|
|
|
switch (err) {
|
|
|
|
case CMD_TIMEOUT:
|
|
printk(KERN_INFO "%s: command 0x%02X timed out!\n",
|
|
card->devname, cmd);
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_INFO "%s: command 0x%02X returned 0x%02X!\n"
|
|
, card->devname, cmd, err);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****** Interrupt Handlers **************************************************/
|
|
/*============================================================================
|
|
* PPP interrupt service routine.
|
|
*/
|
|
static WAN_IRQ_RETVAL wpp_isr (sdla_t *card)
|
|
{
|
|
ppp_flags_t flags;
|
|
netdevice_t *dev;
|
|
int i;
|
|
|
|
if (!card->hw){
|
|
WAN_IRQ_RETURN(WAN_IRQ_HANDLED);
|
|
}
|
|
|
|
set_bit(0,&card->in_isr);
|
|
++card->statistics.isr_entry;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
|
|
card->hw_iface.peek(card->hw, card->flags_off, &flags, sizeof(flags));
|
|
if (!dev && flags.iflag != PPP_INTR_CMD){
|
|
goto wpp_isr_done;
|
|
}
|
|
|
|
if (test_bit(PERI_CRIT, (void*)&card->wandev.critical)) {
|
|
goto wpp_isr_done;
|
|
}
|
|
|
|
|
|
if(card->type != SDLA_S514){
|
|
if (test_bit(SEND_CRIT, (void*)&card->wandev.critical)) {
|
|
++card->statistics.isr_already_critical;
|
|
printk (KERN_INFO "%s: Critical while in ISR!\n",
|
|
card->devname);
|
|
goto wpp_isr_done;
|
|
}
|
|
}
|
|
|
|
switch (flags.iflag) {
|
|
|
|
case PPP_INTR_RXRDY: /* receive interrupt 0x01 (bit 0)*/
|
|
++card->statistics.isr_rx;
|
|
rx_intr(card);
|
|
break;
|
|
|
|
case PPP_INTR_TXRDY: /* transmit interrupt 0x02 (bit 1)*/
|
|
++card->statistics.isr_tx;
|
|
card->hw_iface.clear_bit(card->hw, card->intr_perm_off, PPP_INTR_TXRDY);
|
|
wake_net_dev(dev);
|
|
break;
|
|
|
|
case PPP_INTR_CMD: /* interface command completed */
|
|
++card->timer_int_enabled;
|
|
++card->statistics.isr_intr_test;
|
|
break;
|
|
|
|
case PPP_INTR_MODEM: /* modem status change (DCD, CTS) 0x04 (bit 2)*/
|
|
case PPP_INTR_DISC: /* Data link disconnected 0x10 (bit 4)*/
|
|
case PPP_INTR_OPEN: /* Data link open 0x20 (bit 5)*/
|
|
case PPP_INTR_DROP_DTR: /* DTR drop timeout expired 0x40 bit 6 */
|
|
event_intr(card);
|
|
break;
|
|
|
|
case PPP_INTR_TIMER:
|
|
timer_intr(card);
|
|
break;
|
|
|
|
default: /* unexpected interrupt */
|
|
++card->statistics.isr_spurious;
|
|
printk(KERN_INFO "%s: spurious interrupt 0x%02X!\n",
|
|
card->devname, flags.iflag);
|
|
printk(KERN_INFO "%s: ID Bytes = ",card->devname);
|
|
{
|
|
unsigned char str[8];
|
|
card->hw_iface.peek(card->hw, card->intr_type_off + 0x28, str, 8);
|
|
for(i = 0; i < 8; i ++){
|
|
printk("0x%02X ", str[i]);
|
|
}
|
|
}
|
|
printk("\n");
|
|
}
|
|
|
|
wpp_isr_done:
|
|
clear_bit(0,&card->in_isr);
|
|
card->hw_iface.poke_byte(card->hw, card->intr_type_off, 0x00);
|
|
WAN_IRQ_RETURN(WAN_IRQ_HANDLED);
|
|
}
|
|
|
|
/*============================================================================
|
|
* Receive interrupt handler.
|
|
*/
|
|
static void rx_intr(sdla_t *card)
|
|
{
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
struct sk_buff *skb;
|
|
unsigned len;
|
|
void *buf;
|
|
int i;
|
|
ppp_buf_ctl_t rxbuf;
|
|
int udp_type;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
|
|
card->hw_iface.peek(card->hw, card->rxmb_off, &rxbuf, sizeof(rxbuf));
|
|
if (rxbuf.flag != 0x01) {
|
|
printk(KERN_INFO
|
|
"%s: corrupted Rx buffer @ 0x%lX, flag = 0x%02X!\n",
|
|
card->devname, card->rxmb_off, rxbuf.flag);
|
|
printk(KERN_INFO "%s: ID Bytes = ",card->devname);
|
|
{
|
|
unsigned char str[8];
|
|
card->hw_iface.peek(card->hw, card->intr_type_off + 0x28, str, 8);
|
|
for(i = 0; i < 8; i ++){
|
|
printk(KERN_INFO "0x%02X ", str[i]);
|
|
}
|
|
}
|
|
printk(KERN_INFO "\n");
|
|
|
|
++card->statistics.rx_intr_corrupt_rx_bfr;
|
|
|
|
|
|
/* Bug Fix: Mar 6 2000
|
|
* If we get a corrupted mailbox, it means that driver
|
|
* is out of sync with the firmware. There is no recovery.
|
|
* If we don't turn off all interrupts for this card
|
|
* the machine will crash.
|
|
*/
|
|
printk(KERN_INFO "%s: Critical router failure ...!!!\n", card->devname);
|
|
printk(KERN_INFO "Please contact Sangoma Technologies !\n");
|
|
ppp_set_intr_mode(card,0);
|
|
return;
|
|
}
|
|
|
|
if (dev && is_dev_running(dev) && dev->priv){
|
|
len = rxbuf.length;
|
|
ppp_priv_area = dev->priv;
|
|
|
|
/* Allocate socket buffer */
|
|
skb = dev_alloc_skb(len+2);
|
|
|
|
if (skb != NULL) {
|
|
/* Copy data to the socket buffer */
|
|
unsigned addr = rxbuf.buf.ptr;
|
|
|
|
if ((addr + len) > card->u.p.rx_top_off + 1) {
|
|
unsigned tmp = card->u.p.rx_top_off - addr + 1;
|
|
buf = skb_put(skb, tmp);
|
|
card->hw_iface.peek(card->hw, addr, buf, tmp);
|
|
addr = card->u.p.rx_base_off;
|
|
len -= tmp;
|
|
}
|
|
buf = skb_put(skb, len);
|
|
card->hw_iface.peek(card->hw, addr, buf, len);
|
|
|
|
/* Decapsulate packet */
|
|
switch (rxbuf.proto) {
|
|
case 0x00:
|
|
skb->protocol = htons(ETH_P_IP);
|
|
break;
|
|
|
|
case 0x01:
|
|
skb->protocol = htons(ETH_P_IPX);
|
|
break;
|
|
|
|
default:
|
|
skb->protocol = htons(ETH_P_IP);
|
|
break;
|
|
}
|
|
|
|
udp_type = udp_pkt_type( skb, card );
|
|
|
|
if (udp_type == UDP_PTPIPE_TYPE){
|
|
/* Handle a UDP Request in Timer Interrupt */
|
|
if(store_udp_mgmt_pkt(UDP_PKT_FRM_NETWORK, card, skb, dev,
|
|
ppp_priv_area)){
|
|
printk(KERN_INFO "Storing Network UDP!\n");
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
}
|
|
++ppp_priv_area->rx_intr_stat.rx_intr_PIPE_request;
|
|
|
|
} else if (handle_IPXWAN(skb->data,card->devname,
|
|
ppp_priv_area->enable_IPX,
|
|
ppp_priv_area->network_number,
|
|
skb->protocol)) {
|
|
|
|
/* Handle an IPXWAN packet */
|
|
if( ppp_priv_area->enable_IPX) {
|
|
/* Make sure we are not already sending */
|
|
if (!test_bit(SEND_CRIT, &card->wandev.critical)){
|
|
int err=ppp_send(card, skb->data, skb->len,
|
|
htons(ETH_P_IPX));
|
|
if (err != 0){
|
|
++card->wandev.stats.tx_dropped;
|
|
}
|
|
}else{
|
|
++card->wandev.stats.tx_dropped;
|
|
}
|
|
}else{
|
|
++card->wandev.stats.rx_dropped;
|
|
}
|
|
wan_dev_kfree_skb(skb,FREE_READ);
|
|
|
|
}else if (ppp_priv_area->common.usedby == BRIDGE ||
|
|
ppp_priv_area->common.usedby == BRIDGE_NODE){
|
|
|
|
/* Make sure it's an Ethernet frame, otherwise drop it */
|
|
if (skb->len <= ETH_ALEN) {
|
|
wan_dev_kfree_skb(skb,FREE_READ);
|
|
++card->wandev.stats.rx_errors;
|
|
goto rx_exit;
|
|
}
|
|
|
|
++card->wandev.stats.rx_packets;
|
|
card->wandev.stats.rx_bytes += skb->len;
|
|
++ppp_priv_area->rx_intr_stat.rx_intr_bfr_passed_to_stack;
|
|
|
|
skb->dev = dev;
|
|
skb->protocol=eth_type_trans(skb,dev);
|
|
netif_rx(skb);
|
|
|
|
}else{
|
|
/* Pass data up the protocol stack */
|
|
skb->dev = dev;
|
|
wan_skb_reset_mac_header(skb);
|
|
|
|
++card->wandev.stats.rx_packets;
|
|
card->wandev.stats.rx_bytes += skb->len;
|
|
++ppp_priv_area->rx_intr_stat.rx_intr_bfr_passed_to_stack;
|
|
netif_rx(skb);
|
|
}
|
|
|
|
} else {
|
|
|
|
if (net_ratelimit()){
|
|
printk(KERN_INFO "%s: no socket buffers available!\n",
|
|
card->devname);
|
|
}
|
|
++card->wandev.stats.rx_dropped;
|
|
++ppp_priv_area->rx_intr_stat.rx_intr_no_socket;
|
|
}
|
|
|
|
} else {
|
|
++card->statistics.rx_intr_dev_not_started;
|
|
}
|
|
|
|
rx_exit:
|
|
/* Release buffer element and calculate a pointer to the next one */
|
|
rxbuf.flag = 0x00;
|
|
card->hw_iface.poke(card->hw, card->rxmb_off, &rxbuf, sizeof(rxbuf));
|
|
card->rxmb_off += sizeof(rxbuf);
|
|
if (card->rxmb_off > card->u.p.rxbuf_last_off)
|
|
card->rxmb_off = card->u.p.rxbuf_base_off;
|
|
}
|
|
|
|
|
|
void event_intr (sdla_t *card)
|
|
{
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
ppp_flags_t flags;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return;
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
card->hw_iface.peek(card->hw, card->flags_off, &flags, sizeof(flags));
|
|
switch (flags.iflag){
|
|
|
|
case PPP_INTR_MODEM: /* modem status change (DCD, CTS) 0x04 (bit 2)*/
|
|
|
|
if (IS_56K_CARD(card)) {
|
|
FRONT_END_STATUS_STRUCT FE_status;
|
|
unsigned long FE_status_off = 0xF020;
|
|
card->hw_iface.peek(card->hw, FE_status_off, &FE_status, sizeof(FE_status));
|
|
card->fe.fe_param.k56_param.RR8_reg_56k =
|
|
FE_status.FE_U.stat_56k.RR8_56k;
|
|
card->fe.fe_param.k56_param.RRA_reg_56k =
|
|
FE_status.FE_U.stat_56k.RRA_56k;
|
|
card->fe.fe_param.k56_param.RRC_reg_56k =
|
|
FE_status.FE_U.stat_56k.RRC_56k;
|
|
card->wandev.fe_iface.read_alarm(&card->fe, 0);
|
|
|
|
FE_status.opp_flag = 0x01;
|
|
card->hw_iface.poke(card->hw, FE_status_off, &FE_status, sizeof(FE_status));
|
|
ppp_handle_front_end_state(card);
|
|
break;
|
|
}
|
|
|
|
if (IS_TE1_CARD(card)) {
|
|
FRONT_END_STATUS_STRUCT FE_status;
|
|
unsigned long FE_status_off = 0xF020;
|
|
card->hw_iface.peek(card->hw, FE_status_off, &FE_status, sizeof(FE_status));
|
|
|
|
/* TE_INTR */
|
|
card->wandev.fe_iface.isr(&card->fe);
|
|
FE_status.opp_flag = 0x01;
|
|
card->hw_iface.poke(card->hw, FE_status_off, &FE_status, sizeof(FE_status));
|
|
ppp_handle_front_end_state(card);
|
|
break;
|
|
}
|
|
if (flags.mstatus == 0x28){
|
|
card->fe.fe_status = FE_CONNECTED;
|
|
}else{
|
|
card->fe.fe_status = FE_DISCONNECTED;
|
|
}
|
|
|
|
if (net_ratelimit()){
|
|
printk (KERN_INFO "\n");
|
|
printk (KERN_INFO "%s: Modem status: DCD=%s CTS=%s\n",
|
|
card->devname, DCD(flags.mstatus), CTS(flags.mstatus));
|
|
}
|
|
|
|
ppp_handle_front_end_state(card);
|
|
break;
|
|
|
|
case PPP_INTR_DISC: /* Data link disconnected 0x10 (bit 4)*/
|
|
|
|
printk (KERN_INFO "\n");
|
|
printk (KERN_INFO "%s: Data link disconnected intr\n",
|
|
card->devname);
|
|
show_disc_cause(card, flags.disc_cause);
|
|
|
|
if (flags.disc_cause &
|
|
(PPP_LOCAL_TERMINATION |
|
|
PPP_REMOTE_TERMINATION)) {
|
|
if (card->u.p.ip_mode == WANOPT_PPP_PEER) {
|
|
set_bit(0,&Read_connection_info);
|
|
}
|
|
ppp_priv_area->ppp_state = WAN_DISCONNECTED;
|
|
wanpipe_set_state(card, WAN_DISCONNECTED);
|
|
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_PPP_EVENT;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
trigger_ppp_poll(dev);
|
|
|
|
/* Start debugging */
|
|
WAN_DEBUG_START(card);
|
|
}
|
|
break;
|
|
|
|
case PPP_INTR_OPEN: /* Data link open 0x20 (bit 5)*/
|
|
|
|
NEX_PRINTK (KERN_INFO "%s: PPP Link Open, LCP=%s IP=%s\n",
|
|
card->devname,LCP(flags.lcp_state),
|
|
IP(flags.ip_state));
|
|
|
|
if (flags.lcp_state == 0x09 &&
|
|
(flags.ip_state == 0x09 || flags.ipx_state == 0x09)){
|
|
/* Initialize the polling timer and set the state
|
|
* to WAN_CONNNECTED */
|
|
|
|
|
|
/* BUG FIX: When the protocol restarts, during heavy
|
|
* traffic, board tx buffers and driver tx buffers
|
|
* can go out of sync. This checks the condition
|
|
* and if the tx buffers are out of sync, the
|
|
* protocols are restarted.
|
|
* I don't know why the board tx buffer is out
|
|
* of sync. It could be that a packets is tx
|
|
* while the link is down, but that is not
|
|
* possible. The other possiblility is that the
|
|
* firmware doesn't reinitialize properly.
|
|
* FIXME: A better fix should be found.
|
|
*/
|
|
if (detect_and_fix_tx_bug(card)){
|
|
|
|
ppp_comm_disable(card);
|
|
|
|
ppp_priv_area->ppp_state = WAN_DISCONNECTED;
|
|
wanpipe_set_state(card, WAN_DISCONNECTED);
|
|
|
|
ppp_priv_area->timer_int_enabled |=
|
|
TMR_INT_ENABLED_PPP_EVENT;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
/* Start debugging */
|
|
WAN_DEBUG_START(card);
|
|
break;
|
|
}
|
|
|
|
card->state_tick = jiffies;
|
|
ppp_priv_area->ppp_state = WAN_CONNECTED;
|
|
|
|
if (card->wandev.ignore_front_end_status == WANOPT_YES ||
|
|
card->fe.fe_status == FE_CONNECTED){
|
|
u32 tmp;
|
|
|
|
wanpipe_set_state(card, WAN_CONNECTED);
|
|
|
|
card->hw_iface.peek(card->hw, card->u.p.txbuf_next_off, &tmp, 4);
|
|
NEX_PRINTK(KERN_INFO "CON: L Tx: %lx B Tx: %lx || L Rx %lx B Rx %lx\n",
|
|
card->u.p.txbuf_off, tmp,
|
|
card->rxmb_off, card->u.p.rxbuf_next_off);
|
|
|
|
/* Tell timer interrupt that PPP event occured */
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_PPP_EVENT;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
|
|
/* If we are in PEER mode, we must first obtain the
|
|
* IP information and then go into the poll routine */
|
|
if (card->u.p.ip_mode != WANOPT_PPP_PEER){
|
|
trigger_ppp_poll(dev);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case PPP_INTR_DROP_DTR: /* DTR drop timeout expired 0x40 bit 6 */
|
|
|
|
printk (KERN_INFO "\n");
|
|
printk(KERN_INFO "%s: DTR Drop Timeout Interrupt \n",card->devname);
|
|
|
|
if (card->u.p.ip_mode == WANOPT_PPP_PEER) {
|
|
set_bit(0,&Read_connection_info);
|
|
}
|
|
|
|
ppp_priv_area->ppp_state = WAN_DISCONNECTED;
|
|
wanpipe_set_state(card, WAN_DISCONNECTED);
|
|
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_PPP_EVENT;
|
|
show_disc_cause(card, flags.disc_cause);
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
trigger_ppp_poll(dev);
|
|
|
|
/* Start debugging */
|
|
WAN_DEBUG_START(card);
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_INFO "%s: Error, Invalid PPP Event\n",card->devname);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/* TIMER INTERRUPT */
|
|
|
|
void timer_intr (sdla_t *card)
|
|
{
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev)){
|
|
DEBUG_EVENT("%s: Error: No dev\n",__FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
if (ppp_priv_area->timer_int_enabled & TMR_INT_ENABLED_CONFIG){
|
|
config_ppp(card);
|
|
ppp_priv_area->timer_int_enabled &=
|
|
~TMR_INT_ENABLED_CONFIG;
|
|
}
|
|
|
|
/* Update statistics */
|
|
if (ppp_priv_area->timer_int_enabled & TMR_INT_ENABLED_UPDATE){
|
|
|
|
ppp_get_err_stats(card);
|
|
|
|
if (IS_TE1_CARD(card)) {
|
|
card->wandev.fe_iface.read_alarm(&card->fe, 0);
|
|
/* TE1 Update T1/E1 perfomance counters */
|
|
card->wandev.fe_iface.read_pmon(&card->fe, 0);
|
|
}else if (IS_56K_CARD(card)) {
|
|
/* 56K Update CSU/DSU alarms */
|
|
card->wandev.fe_iface.read_alarm(&card->fe, 1);
|
|
}
|
|
|
|
if(!(--ppp_priv_area->update_comms_stats)){
|
|
ppp_priv_area->timer_int_enabled &=
|
|
~TMR_INT_ENABLED_UPDATE;
|
|
}
|
|
}
|
|
|
|
/* TE timer interrupt */
|
|
if (ppp_priv_area->timer_int_enabled & TMR_INT_ENABLED_TE){
|
|
card->wandev.fe_iface.polling(&card->fe);
|
|
ppp_priv_area->timer_int_enabled &= ~TMR_INT_ENABLED_TE;
|
|
}
|
|
|
|
/* PPIPEMON UDP request */
|
|
if (ppp_priv_area->timer_int_enabled & TMR_INT_ENABLED_UDP){
|
|
process_udp_mgmt_pkt(card,dev, ppp_priv_area,0);
|
|
ppp_priv_area->timer_int_enabled &= ~TMR_INT_ENABLED_UDP;
|
|
}
|
|
|
|
/* PPP Event */
|
|
if (ppp_priv_area->timer_int_enabled & TMR_INT_ENABLED_PPP_EVENT){
|
|
|
|
if (ppp_priv_area->ppp_state == WAN_DISCONNECTED){
|
|
int err;
|
|
if ((err=retrigger_comm(card)) < 0){
|
|
/* DTR has been dropped. The card will
|
|
* NOT give us an interrupt, thus do not turn off
|
|
* interrupt, let it retry the command again */
|
|
if (err != -EBUSY){
|
|
ppp_priv_area->timer_int_enabled &= ~TMR_INT_ENABLED_PPP_EVENT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If the state is CONNECTING, it means that communicatins were
|
|
* enabled. When the remote side enables its comminication we
|
|
* should get an interrupt PPP_INTR_OPEN, thus turn off polling
|
|
*/
|
|
|
|
else if (ppp_priv_area->ppp_state == WAN_CONNECTING){
|
|
/* Turn off the timer interrupt */
|
|
ppp_priv_area->timer_int_enabled &= ~TMR_INT_ENABLED_PPP_EVENT;
|
|
}
|
|
|
|
/* If state is connected and we are in PEER mode
|
|
* poll for an IP address which will be provided by remote end.
|
|
*
|
|
* We must wait for the main state to become connected,
|
|
* because the front end might be disconnected still,
|
|
* and the interface might be down.
|
|
*/
|
|
else if ((card->wandev.state == WAN_CONNECTED &&
|
|
card->u.p.ip_mode == WANOPT_PPP_PEER) &&
|
|
test_bit(0,&Read_connection_info)){
|
|
|
|
card->state_tick = jiffies;
|
|
if (read_connection_info (card)){
|
|
printk(KERN_INFO "%s: Failed to read PEER IP Addresses\n",
|
|
card->devname);
|
|
}else{
|
|
clear_bit(0,&Read_connection_info);
|
|
set_bit(1,&Read_connection_info);
|
|
trigger_ppp_poll(dev);
|
|
}
|
|
}else{
|
|
//FIXME Put the comment back int
|
|
ppp_priv_area->timer_int_enabled &= ~TMR_INT_ENABLED_PPP_EVENT;
|
|
}
|
|
|
|
}/* End of PPP_EVENT */
|
|
|
|
|
|
/* Only disable the timer interrupt if there are no udp, statistic */
|
|
/* updates or events pending */
|
|
if(!ppp_priv_area->timer_int_enabled) {
|
|
card->hw_iface.clear_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
}
|
|
}
|
|
|
|
|
|
static int handle_IPXWAN(unsigned char *sendpacket, char *devname, unsigned char enable_IPX, unsigned long network_number, unsigned short proto)
|
|
{
|
|
int i;
|
|
|
|
if( proto == htons(ETH_P_IPX) ) {
|
|
//It's an IPX packet
|
|
if(!enable_IPX) {
|
|
//Return 1 so we don't pass it up the stack.
|
|
return 1;
|
|
}
|
|
} else {
|
|
//It's not IPX so pass it up the stack.
|
|
return 0;
|
|
}
|
|
|
|
if( sendpacket[16] == 0x90 &&
|
|
sendpacket[17] == 0x04)
|
|
{
|
|
//It's IPXWAN
|
|
|
|
if( sendpacket[2] == 0x02 &&
|
|
sendpacket[34] == 0x00)
|
|
{
|
|
//It's a timer request packet
|
|
printk(KERN_INFO "%s: Received IPXWAN Timer Request packet\n",devname);
|
|
|
|
//Go through the routing options and answer no to every
|
|
//option except Unnumbered RIP/SAP
|
|
for(i = 41; sendpacket[i] == 0x00; i += 5)
|
|
{
|
|
//0x02 is the option for Unnumbered RIP/SAP
|
|
if( sendpacket[i + 4] != 0x02)
|
|
{
|
|
sendpacket[i + 1] = 0;
|
|
}
|
|
}
|
|
|
|
//Skip over the extended Node ID option
|
|
if( sendpacket[i] == 0x04 )
|
|
{
|
|
i += 8;
|
|
}
|
|
|
|
//We also want to turn off all header compression opt.
|
|
for(; sendpacket[i] == 0x80 ;)
|
|
{
|
|
sendpacket[i + 1] = 0;
|
|
i += (sendpacket[i + 2] << 8) + (sendpacket[i + 3]) + 4;
|
|
}
|
|
|
|
//Set the packet type to timer response
|
|
sendpacket[34] = 0x01;
|
|
|
|
printk(KERN_INFO "%s: Sending IPXWAN Timer Response\n",devname);
|
|
}
|
|
else if( sendpacket[34] == 0x02 )
|
|
{
|
|
//This is an information request packet
|
|
printk(KERN_INFO "%s: Received IPXWAN Information Request packet\n",devname);
|
|
|
|
//Set the packet type to information response
|
|
sendpacket[34] = 0x03;
|
|
|
|
//Set the router name
|
|
sendpacket[51] = 'P';
|
|
sendpacket[52] = 'T';
|
|
sendpacket[53] = 'P';
|
|
sendpacket[54] = 'I';
|
|
sendpacket[55] = 'P';
|
|
sendpacket[56] = 'E';
|
|
sendpacket[57] = '-';
|
|
sendpacket[58] = CVHexToAscii(network_number >> 28);
|
|
sendpacket[59] = CVHexToAscii((network_number & 0x0F000000)>> 24);
|
|
sendpacket[60] = CVHexToAscii((network_number & 0x00F00000)>> 20);
|
|
sendpacket[61] = CVHexToAscii((network_number & 0x000F0000)>> 16);
|
|
sendpacket[62] = CVHexToAscii((network_number & 0x0000F000)>> 12);
|
|
sendpacket[63] = CVHexToAscii((network_number & 0x00000F00)>> 8);
|
|
sendpacket[64] = CVHexToAscii((network_number & 0x000000F0)>> 4);
|
|
sendpacket[65] = CVHexToAscii(network_number & 0x0000000F);
|
|
for(i = 65; i < 99; i+= 1)
|
|
{
|
|
sendpacket[i] = 0;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: Sending IPXWAN Information Response packet\n",devname);
|
|
}
|
|
else
|
|
{
|
|
printk(KERN_INFO "%s: Unknown IPXWAN packet!\n",devname);
|
|
return 0;
|
|
}
|
|
|
|
//Set the WNodeID to our network address
|
|
sendpacket[35] = (unsigned char)(network_number >> 24);
|
|
sendpacket[36] = (unsigned char)((network_number & 0x00FF0000) >> 16);
|
|
sendpacket[37] = (unsigned char)((network_number & 0x0000FF00) >> 8);
|
|
sendpacket[38] = (unsigned char)(network_number & 0x000000FF);
|
|
|
|
return 1;
|
|
} else {
|
|
//If we get here's its an IPX-data packet, so it'll get passed up the stack.
|
|
|
|
//switch the network numbers
|
|
switch_net_numbers(sendpacket, network_number, 1);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/****** Background Polling Routines ****************************************/
|
|
|
|
/* All polling functions are invoked by the TIMER interrupt in the wpp_isr
|
|
* routine.
|
|
*/
|
|
|
|
/*============================================================================
|
|
* Monitor active link phase.
|
|
*/
|
|
static void process_route (sdla_t *card)
|
|
{
|
|
ppp_flags_t flags;
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return;
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
card->hw_iface.peek(card->hw, card->flags_off, &flags, sizeof(flags));
|
|
if ((card->u.p.ip_mode == WANOPT_PPP_PEER) &&
|
|
(flags.ip_state == 0x09)){
|
|
|
|
/* We get ip_local from the firmware in PEER mode.
|
|
* Therefore, if ip_local is 0, we failed to obtain
|
|
* the remote IP address. */
|
|
if (ppp_priv_area->ip_local == 0)
|
|
return;
|
|
|
|
printk(KERN_INFO "%s: IPCP State Opened.\n", card->devname);
|
|
if (read_info( card )) {
|
|
printk(KERN_INFO
|
|
"%s: An error occurred in IP assignment.\n",
|
|
card->devname);
|
|
} else {
|
|
struct in_device *in_dev = dev->ip_ptr;
|
|
if (in_dev != NULL ) {
|
|
struct in_ifaddr *ifa = in_dev->ifa_list;
|
|
if (ifa){
|
|
printk(KERN_INFO "%s: Assigned Lcl. Addr: %u.%u.%u.%u\n",
|
|
card->devname, NIPQUAD(ifa->ifa_local));
|
|
printk(KERN_INFO "%s: Assigned Rmt. Addr: %u.%u.%u.%u\n",
|
|
card->devname, NIPQUAD(ifa->ifa_address));
|
|
}
|
|
}else{
|
|
printk(KERN_INFO
|
|
"%s: Error: Failed to add a route for PPP interface %s\n",
|
|
card->devname,dev->name);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*============================================================================
|
|
* Monitor physical link disconnected phase.
|
|
* o if interface is up and the hold-down timeout has expired, then retry
|
|
* connection.
|
|
*/
|
|
static int retrigger_comm(sdla_t *card)
|
|
{
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
int err=0;
|
|
|
|
dev= WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return 0;
|
|
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
if ((jiffies - card->state_tick) > HOLD_DOWN_TIME){
|
|
|
|
/*Bug Fix: May 24 2001
|
|
* Only set state if the communicatins are
|
|
* enabled */
|
|
err = ppp_comm_enable(card);
|
|
|
|
switch (err){
|
|
|
|
case 0x00:
|
|
/* Communications are back up, change
|
|
* state to connecting and reinitialize
|
|
* buffers */
|
|
ppp_priv_area->ppp_state = WAN_CONNECTING;
|
|
wanpipe_set_state(card, WAN_CONNECTING);
|
|
init_ppp_tx_rx_buff( card );
|
|
ppp_priv_area->comm_busy_retry=0;
|
|
break;
|
|
|
|
case 0x0A:
|
|
printk(KERN_INFO "%s: Comm enable busy, retrying in %i sec.\n",
|
|
card->devname,HOLD_DOWN_TIME);
|
|
ppp_comm_disable(card);
|
|
card->state_tick=jiffies;
|
|
|
|
/* We are in process of handing up, retry
|
|
* again later by leaving the wanpipe
|
|
* device in DISCONNECTED state */
|
|
|
|
return -EBUSY;
|
|
|
|
/* NB:
|
|
* By setting wanpipe state to connecting, the
|
|
* communicatins will stay in disabled state, and the
|
|
* retries will fail */
|
|
|
|
case 0x01:
|
|
printk(KERN_INFO "%s: ERROR PPP Com-Enable failed: protocol not configured!\n",
|
|
card->devname);
|
|
return -EFAULT;
|
|
|
|
case 0x09:
|
|
printk(KERN_INFO "%s: ERROR PPP Com-Enable failed: already enabled!\n",
|
|
card->devname);
|
|
ppp_priv_area->ppp_state = WAN_CONNECTING;
|
|
wanpipe_set_state(card, WAN_CONNECTING);
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_INFO "%s: ERROR PPP Com-Enable failed: unknown rc=0x%X!\n",
|
|
card->devname,err);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/****** Miscellaneous Functions *********************************************/
|
|
|
|
/*============================================================================
|
|
* Configure S508 adapter.
|
|
*/
|
|
static int config508(netdevice_t *dev, sdla_t *card)
|
|
{
|
|
ppp508_conf_t cfg;
|
|
ppp_private_area_t *ppp_priv_area = dev->priv;
|
|
|
|
/* Prepare PPP configuration structure */
|
|
memset(&cfg, 0, sizeof(ppp508_conf_t));
|
|
|
|
if (card->wandev.clocking)
|
|
cfg.line_speed = card->wandev.bps;
|
|
|
|
if (card->wandev.interface == WANOPT_RS232)
|
|
cfg.conf_flags |= INTERFACE_LEVEL_RS232;
|
|
|
|
|
|
cfg.conf_flags |= DONT_TERMINATE_LNK_MAX_CONFIG; /*send Configure-Request packets forever*/
|
|
cfg.txbuf_percent = PERCENT_TX_BUFF; /* % of Tx bufs */
|
|
cfg.mtu_local = card->wandev.mtu;
|
|
cfg.mtu_remote = card->wandev.mtu; /* Default */
|
|
cfg.restart_tmr = TIME_BETWEEN_CONF_REQ; /* 30 = 3sec */
|
|
cfg.auth_rsrt_tmr = TIME_BETWEEN_PAP_CHAP_REQ; /* 30 = 3sec */
|
|
cfg.auth_wait_tmr = WAIT_PAP_CHAP_WITHOUT_REPLY; /* 300 = 30s */
|
|
cfg.mdm_fail_tmr = WAIT_AFTER_DCD_CTS_LOW; /* 5 = 0.5s */
|
|
cfg.dtr_drop_tmr = TIME_DCD_CTS_LOW_AFTER_LNK_DOWN; /* 10 = 1s */
|
|
cfg.connect_tmout = WAIT_DCD_HIGH_AFTER_ENABLE_COMM; /* 900 = 90s */
|
|
cfg.conf_retry = MAX_CONF_REQ_WITHOUT_REPLY; /* 10 = 1s */
|
|
cfg.term_retry = MAX_TERM_REQ_WITHOUT_REPLY; /* 2 times */
|
|
cfg.fail_retry = NUM_CONF_NAK_WITHOUT_REPLY; /* 5 times */
|
|
cfg.auth_retry = NUM_AUTH_REQ_WITHOUT_REPLY; /* 10 times */
|
|
|
|
|
|
if( !card->u.p.authenticator ) {
|
|
printk(KERN_INFO "%s: Device is not configured as an authenticator\n",
|
|
card->devname);
|
|
cfg.auth_options = NO_AUTHENTICATION;
|
|
}else{
|
|
printk(KERN_INFO "%s: Device is configured as an authenticator\n",
|
|
card->devname);
|
|
cfg.auth_options = INBOUND_AUTH;
|
|
}
|
|
|
|
if( ppp_priv_area->pap == WANOPT_YES){
|
|
cfg.auth_options |=PAP_AUTH;
|
|
printk(KERN_INFO "%s: Pap enabled\n", card->devname);
|
|
}
|
|
if( ppp_priv_area->chap == WANOPT_YES){
|
|
cfg.auth_options |= CHAP_AUTH;
|
|
printk(KERN_INFO "%s: Chap enabled\n", card->devname);
|
|
}
|
|
|
|
|
|
if (ppp_priv_area->enable_IPX == WANOPT_YES){
|
|
printk(KERN_INFO "%s: Enabling IPX Protocol\n",card->devname);
|
|
cfg.ipx_options = ENABLE_IPX | ROUTING_PROT_DEFAULT;
|
|
}else{
|
|
cfg.ipx_options = DISABLE_IPX;
|
|
}
|
|
|
|
switch (card->u.p.ip_mode) {
|
|
|
|
case WANOPT_PPP_STATIC:
|
|
|
|
printk(KERN_INFO "%s: PPP IP Mode: STATIC\n",card->devname);
|
|
cfg.ip_options = L_AND_R_IP_NO_ASSIG |
|
|
ENABLE_IP;
|
|
cfg.ip_local = ppp_priv_area->ip_local;
|
|
cfg.ip_remote = ppp_priv_area->ip_remote;
|
|
break;
|
|
|
|
case WANOPT_PPP_HOST:
|
|
|
|
printk(KERN_INFO "%s: PPP IP Mode: HOST\n",card->devname);
|
|
cfg.ip_options = L_IP_LOCAL_ASSIG |
|
|
R_IP_LOCAL_ASSIG |
|
|
ENABLE_IP;
|
|
|
|
cfg.ip_local = ppp_priv_area->ip_local;
|
|
cfg.ip_remote = ppp_priv_area->ip_remote;
|
|
break;
|
|
|
|
case WANOPT_PPP_PEER:
|
|
|
|
printk(KERN_INFO "%s: PPP IP Mode: PEER\n",card->devname);
|
|
cfg.ip_options = L_IP_REMOTE_ASSIG |
|
|
R_IP_REMOTE_ASSIG |
|
|
ENABLE_IP;
|
|
cfg.ip_local = 0x00;
|
|
cfg.ip_remote = 0x00;
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_INFO "%s: ERROR: Unsuported PPP Mode Selected\n",
|
|
card->devname);
|
|
printk(KERN_INFO "%s: PPP IP Modes: STATIC, PEER or HOST\n",
|
|
card->devname);
|
|
return 1;
|
|
}
|
|
|
|
return ppp_configure(card, &cfg);
|
|
}
|
|
|
|
/*============================================================================
|
|
* Show disconnection cause.
|
|
*/
|
|
static void show_disc_cause(sdla_t *card, unsigned cause)
|
|
{
|
|
if (cause & 0x0802)
|
|
|
|
printk(KERN_INFO "%s: link terminated by peer\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0004)
|
|
|
|
printk(KERN_INFO "%s: link terminated by user\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0008)
|
|
|
|
printk(KERN_INFO "%s: authentication failed\n", card->devname);
|
|
|
|
else if (cause & 0x0010)
|
|
|
|
printk(KERN_INFO
|
|
"%s: authentication protocol negotiation failed\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0020)
|
|
|
|
printk(KERN_INFO
|
|
"%s: peer's request for authentication rejected\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0040)
|
|
|
|
printk(KERN_INFO "%s: MRU option rejected by peer\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0080)
|
|
|
|
printk(KERN_INFO "%s: peer's MRU was too small\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0100)
|
|
|
|
printk(KERN_INFO "%s: failed to negotiate peer's LCP options\n",
|
|
card->devname);
|
|
|
|
else if (cause & 0x0200)
|
|
|
|
printk(KERN_INFO "%s: failed to negotiate peer's IPCP options\n"
|
|
, card->devname);
|
|
|
|
else if (cause & 0x0400)
|
|
|
|
printk(KERN_INFO
|
|
"%s: failed to negotiate peer's IPXCP options\n",
|
|
card->devname);
|
|
}
|
|
|
|
/*=============================================================================
|
|
* Process UDP call of type PTPIPEAB.
|
|
*/
|
|
static void process_udp_mgmt_pkt(sdla_t *card, netdevice_t *dev,
|
|
ppp_private_area_t *ppp_priv_area, int local_dev)
|
|
{
|
|
unsigned char buf2[5];
|
|
unsigned char *buf;
|
|
unsigned int frames, len;
|
|
struct sk_buff *new_skb;
|
|
unsigned short data_length, buffer_length, real_len;
|
|
unsigned long data_ptr;
|
|
int udp_mgmt_req_valid = 1;
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
struct timeval tv;
|
|
int err;
|
|
wan_udp_pkt_t *wan_udp_pkt;
|
|
|
|
memcpy(&buf2, &card->wandev.udp_port, 2 );
|
|
wan_udp_pkt= (wan_udp_pkt_t*)&ppp_priv_area->udp_pkt_data;
|
|
|
|
if (!local_dev){
|
|
|
|
if(ppp_priv_area->udp_pkt_src == UDP_PKT_FRM_NETWORK) {
|
|
|
|
switch(wan_udp_pkt->wan_udp_command) {
|
|
|
|
case PPIPE_GET_IBA_DATA:
|
|
case PPP_READ_CONFIG:
|
|
case PPP_GET_CONNECTION_INFO:
|
|
case PPIPE_ROUTER_UP_TIME:
|
|
case PPP_READ_STATISTICS:
|
|
case PPP_READ_ERROR_STATS:
|
|
case PPP_READ_PACKET_STATS:
|
|
case PPP_READ_LCP_STATS:
|
|
case PPP_READ_IPCP_STATS:
|
|
case PPP_READ_IPXCP_STATS:
|
|
case PPP_READ_PAP_STATS:
|
|
case PPP_READ_CHAP_STATS:
|
|
case PPP_READ_CODE_VERSION:
|
|
case WAN_GET_MEDIA_TYPE:
|
|
case WAN_FE_GET_CFG:
|
|
case WAN_FE_GET_STAT:
|
|
case WAN_GET_PROTOCOL:
|
|
case WAN_GET_PLATFORM:
|
|
udp_mgmt_req_valid = 1;
|
|
break;
|
|
|
|
default:
|
|
udp_mgmt_req_valid = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
wan_udp_pkt->wan_udp_opp_flag = 0x00;
|
|
if(!udp_mgmt_req_valid) {
|
|
/* set length to 0 */
|
|
wan_udp_pkt->wan_udp_data_len = 0x00;
|
|
|
|
/* set return code */
|
|
wan_udp_pkt->wan_udp_return_code = 0xCD;
|
|
++ppp_priv_area->pipe_mgmt_stat.UDP_PIPE_mgmt_direction_err;
|
|
|
|
if (net_ratelimit()){
|
|
printk(KERN_INFO
|
|
"%s: Warning, Illegal UDP command attempted from network: %x\n",
|
|
card->devname,wan_udp_pkt->wan_udp_command);
|
|
}
|
|
} else {
|
|
/* Initialize the trace element */
|
|
trace_element_t trace_element;
|
|
|
|
switch (wan_udp_pkt->wan_udp_command){
|
|
|
|
/* PPIPE_ENABLE_TRACING */
|
|
case PPIPE_ENABLE_TRACING:
|
|
if (!card->TracingEnabled) {
|
|
|
|
/* OPERATE_DATALINE_MONITOR */
|
|
mb->wan_command = PPP_DATALINE_MONITOR;
|
|
mb->wan_data_len = 0x01;
|
|
mb->wan_data[0] = wan_udp_pkt->wan_udp_data[0];
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK) {
|
|
|
|
ppp_error(card, err, mb);
|
|
card->TracingEnabled = 0;
|
|
|
|
/* set the return code */
|
|
|
|
wan_udp_pkt->wan_udp_return_code = mb->wan_return_code;
|
|
wan_udp_pkt->wan_udp_data_len=0;
|
|
break;
|
|
}
|
|
|
|
card->hw_iface.peek(card->hw, 0xC000, &buf2, 2);
|
|
|
|
ppp_priv_area->curr_trace_addr = 0;
|
|
memcpy(&ppp_priv_area->curr_trace_addr, &buf2, 2);
|
|
ppp_priv_area->start_trace_addr =
|
|
ppp_priv_area->curr_trace_addr;
|
|
ppp_priv_area->end_trace_addr =
|
|
ppp_priv_area->start_trace_addr + END_OFFSET;
|
|
|
|
/* MAX_SEND_BUFFER_SIZE - 28 (IP header)
|
|
- 32 (ppipemon CBLOCK) */
|
|
available_buffer_space = MAX_LGTH_UDP_MGNT_PKT -
|
|
sizeof(struct iphdr)-
|
|
sizeof(struct udphdr)-
|
|
sizeof(wan_mgmt_t)-
|
|
sizeof(wan_cmd_t);
|
|
}
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len=0;
|
|
card->TracingEnabled = 1;
|
|
break;
|
|
|
|
/* PPIPE_DISABLE_TRACING */
|
|
case PPIPE_DISABLE_TRACING:
|
|
|
|
if(card->TracingEnabled) {
|
|
|
|
/* OPERATE_DATALINE_MONITOR */
|
|
mb->wan_command = 0x33;
|
|
mb->wan_data_len = 1;
|
|
mb->wan_data[0] = 0x00;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
}
|
|
|
|
/*set return code*/
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len=0;
|
|
card->TracingEnabled = 0;
|
|
break;
|
|
|
|
/* PPIPE_GET_TRACE_INFO */
|
|
case PPIPE_GET_TRACE_INFO:
|
|
|
|
if(!card->TracingEnabled) {
|
|
/* set return code */
|
|
wan_udp_pkt->wan_udp_return_code = 1;
|
|
wan_udp_pkt->wan_udp_data_len=0;
|
|
printk(KERN_INFO "%s: PPP Tracing not enabled!\n",
|
|
card->devname);
|
|
break;
|
|
}
|
|
|
|
buffer_length = 0;
|
|
|
|
/* frames < 62, where 62 is the number of trace
|
|
information elements. There is in total 496
|
|
bytes of space and each trace information
|
|
element is 8 bytes.
|
|
*/
|
|
for ( frames=0; frames<62; frames++) {
|
|
|
|
trace_pkt_t *trace_pkt = (trace_pkt_t *)
|
|
&wan_udp_pkt->wan_udp_data[buffer_length];
|
|
|
|
/* Read the whole trace packet */
|
|
card->hw_iface.peek(card->hw, ppp_priv_area->curr_trace_addr,
|
|
&trace_element, sizeof(trace_element_t));
|
|
|
|
/* no data on board so exit */
|
|
if( trace_element.opp_flag == 0x00 )
|
|
break;
|
|
|
|
data_ptr = trace_element.trace_data_ptr;
|
|
|
|
/* See if there is actual data on the trace buffer */
|
|
if (data_ptr){
|
|
data_length = trace_element.trace_length;
|
|
}else{
|
|
data_length = 0;
|
|
wan_udp_pkt->wan_udp_data[0] |= 0x02;
|
|
}
|
|
|
|
//FIXME: Do we need this check
|
|
if ((available_buffer_space - buffer_length)
|
|
< (sizeof(trace_pkt_t)+1)){
|
|
|
|
/*indicate we have more frames
|
|
* on board and exit
|
|
*/
|
|
wan_udp_pkt->wan_udp_data[0] |= 0x02;
|
|
break;
|
|
}
|
|
|
|
trace_pkt->status = trace_element.trace_type;
|
|
trace_pkt->time_stamp = trace_element.trace_time_stamp;
|
|
trace_pkt->real_length = trace_element.trace_length;
|
|
|
|
real_len = trace_element.trace_length;
|
|
|
|
if(data_ptr == 0){
|
|
trace_pkt->data_avail = 0x00;
|
|
}else{
|
|
/* we can take it next time */
|
|
if ((available_buffer_space - buffer_length)<
|
|
(real_len + sizeof(trace_pkt_t))){
|
|
|
|
wan_udp_pkt->wan_udp_data[0] |= 0x02;
|
|
break;
|
|
}
|
|
trace_pkt->data_avail = 0x01;
|
|
|
|
/* get the data */
|
|
card->hw_iface.peek(card->hw, data_ptr,
|
|
&trace_pkt->data,
|
|
real_len);
|
|
}
|
|
/* zero the opp flag to
|
|
show we got the frame */
|
|
buf2[0] = 0x00;
|
|
card->hw_iface.poke_byte(card->hw, ppp_priv_area->curr_trace_addr, 0x00);
|
|
|
|
/* now move onto the next
|
|
frame */
|
|
ppp_priv_area->curr_trace_addr += sizeof(trace_element_t);
|
|
|
|
/* check if we passed the last address */
|
|
if ( ppp_priv_area->curr_trace_addr >=
|
|
ppp_priv_area->end_trace_addr){
|
|
|
|
ppp_priv_area->curr_trace_addr =
|
|
ppp_priv_area->start_trace_addr;
|
|
}
|
|
|
|
/* update buffer length and make sure its even */
|
|
|
|
if ( trace_pkt->data_avail == 0x01 ) {
|
|
buffer_length += real_len - 1;
|
|
}
|
|
|
|
/* for the header */
|
|
buffer_length += sizeof(trace_pkt_t);
|
|
|
|
if( buffer_length & 0x0001 )
|
|
buffer_length += 1;
|
|
}
|
|
|
|
/* ok now set the total number of frames passed
|
|
in the high 5 bits */
|
|
wan_udp_pkt->wan_udp_data[0] |= (frames << 2);
|
|
|
|
/* set the data length */
|
|
wan_udp_pkt->wan_udp_data_len = buffer_length;
|
|
|
|
/* set return code */
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
break;
|
|
|
|
/* PPIPE_GET_IBA_DATA */
|
|
case PPIPE_GET_IBA_DATA:
|
|
|
|
card->hw_iface.peek(card->hw, 0xF003, &wan_udp_pkt->wan_udp_data,
|
|
0x09);
|
|
|
|
/* set the length of the data */
|
|
wan_udp_pkt->wan_udp_data_len = 0x09;
|
|
|
|
/* set return code */
|
|
wan_udp_pkt->wan_udp_return_code = 0x00;
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
break;
|
|
|
|
/* PPIPE_FT1_READ_STATUS */
|
|
case PPIPE_FT1_READ_STATUS:
|
|
card->hw_iface.peek(card->hw, 0xF020, &wan_udp_pkt->wan_udp_data[0], 2);
|
|
wan_udp_pkt->wan_udp_data_len = 2;
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
break;
|
|
|
|
case PPIPE_FLUSH_DRIVER_STATS:
|
|
init_ppp_priv_struct( ppp_priv_area );
|
|
init_global_statistics( card );
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len=0;
|
|
break;
|
|
|
|
|
|
case PPIPE_ROUTER_UP_TIME:
|
|
|
|
do_gettimeofday( &tv );
|
|
ppp_priv_area->router_up_time = tv.tv_sec -
|
|
ppp_priv_area->router_start_time;
|
|
*(unsigned long *)&wan_udp_pkt->wan_udp_data = ppp_priv_area->router_up_time;
|
|
wan_udp_pkt->wan_udp_data_len=4;
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
break;
|
|
|
|
/* PPIPE_DRIVER_STATISTICS */
|
|
case PPIPE_DRIVER_STAT_IFSEND:
|
|
memcpy(&wan_udp_pkt->wan_udp_data, &ppp_priv_area->if_send_stat,
|
|
sizeof(if_send_stat_t));
|
|
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len = sizeof(if_send_stat_t);
|
|
break;
|
|
|
|
case PPIPE_DRIVER_STAT_INTR:
|
|
memcpy(&wan_udp_pkt->wan_udp_data, &card->statistics,
|
|
sizeof(global_stats_t));
|
|
|
|
memcpy(&wan_udp_pkt->wan_udp_data+sizeof(global_stats_t),
|
|
&ppp_priv_area->rx_intr_stat,
|
|
sizeof(rx_intr_stat_t));
|
|
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len = sizeof(global_stats_t)+
|
|
sizeof(rx_intr_stat_t);
|
|
break;
|
|
|
|
case PPIPE_DRIVER_STAT_GEN:
|
|
memcpy( &wan_udp_pkt->wan_udp_data,
|
|
&ppp_priv_area->pipe_mgmt_stat,
|
|
sizeof(pipe_mgmt_stat_t));
|
|
|
|
memcpy(&wan_udp_pkt->wan_udp_data+sizeof(pipe_mgmt_stat_t),
|
|
&card->statistics, sizeof(global_stats_t));
|
|
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len = sizeof(global_stats_t)+
|
|
sizeof(rx_intr_stat_t);
|
|
break;
|
|
|
|
|
|
/* FT1 MONITOR STATUS */
|
|
case FT1_MONITOR_STATUS_CTRL:
|
|
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
|
|
/* Enable FT1 MONITOR STATUS */
|
|
if( wan_udp_pkt->wan_udp_data[0] == 1) {
|
|
|
|
if(card->rCount++ != 0 ) {
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len=1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Disable FT1 MONITOR STATUS */
|
|
if( wan_udp_pkt->wan_udp_data[0] == 0) {
|
|
|
|
if(--card->rCount != 0) {
|
|
wan_udp_pkt->wan_udp_return_code = 0;
|
|
wan_udp_pkt->wan_udp_data_len=1;
|
|
break;
|
|
}
|
|
}
|
|
goto udp_dflt_cmd;
|
|
|
|
case WAN_GET_MEDIA_TYPE:
|
|
case WAN_FE_GET_STAT:
|
|
case WAN_FE_SET_LB_MODE:
|
|
case WAN_FE_FLUSH_PMON:
|
|
case WAN_FE_GET_CFG:
|
|
|
|
if (IS_TE1_CARD(card)){
|
|
card->wandev.fe_iface.process_udp(
|
|
&card->fe,
|
|
&wan_udp_pkt->wan_udp_cmd,
|
|
&wan_udp_pkt->wan_udp_data[0]);
|
|
}else if (IS_56K_CARD(card)){
|
|
card->wandev.fe_iface.process_udp(
|
|
&card->fe,
|
|
&wan_udp_pkt->wan_udp_cmd,
|
|
&wan_udp_pkt->wan_udp_data[0]);
|
|
}else{
|
|
if (wan_udp_pkt->wan_udp_command == WAN_GET_MEDIA_TYPE){
|
|
wan_udp_pkt->wan_udp_data_len = sizeof(unsigned char);
|
|
wan_udp_pkt->wan_udp_return_code = CMD_OK;
|
|
}else{
|
|
wan_udp_pkt->wan_udp_return_code = WAN_UDP_INVALID_CMD;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WAN_GET_PROTOCOL:
|
|
wan_udp_pkt->wan_udp_data[0] = card->wandev.config_id;
|
|
wan_udp_pkt->wan_udp_return_code = CMD_OK;
|
|
wan_udp_pkt->wan_udp_data_len = 1;
|
|
break;
|
|
|
|
case WAN_GET_PLATFORM:
|
|
wan_udp_pkt->wan_udp_data[0] = WAN_LINUX_PLATFORM;
|
|
wan_udp_pkt->wan_udp_return_code = CMD_OK;
|
|
wan_udp_pkt->wan_udp_data_len = 1;
|
|
break;
|
|
|
|
default:
|
|
udp_dflt_cmd:
|
|
/* it's a board command */
|
|
mb->wan_command = wan_udp_pkt->wan_udp_command;
|
|
mb->wan_data_len = wan_udp_pkt->wan_udp_data_len;
|
|
|
|
if(mb->wan_data_len) {
|
|
memcpy(&mb->wan_data,(unsigned char *)wan_udp_pkt->wan_udp_data,
|
|
mb->wan_data_len);
|
|
}
|
|
|
|
/* run the command on the board */
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if (err != CMD_OK) {
|
|
|
|
wan_udp_pkt->wan_udp_return_code = mb->wan_return_code;
|
|
ppp_error(card, err, mb);
|
|
++ppp_priv_area->pipe_mgmt_stat.
|
|
UDP_PIPE_mgmt_adptr_cmnd_timeout;
|
|
break;
|
|
}
|
|
|
|
++ppp_priv_area->pipe_mgmt_stat.UDP_PIPE_mgmt_adptr_cmnd_OK;
|
|
|
|
/* copy the result back to our buffer */
|
|
memcpy(&wan_udp_pkt->wan_udp_hdr.wan_cmd, mb, sizeof(wan_cmd_t));
|
|
|
|
if(mb->wan_data_len) {
|
|
memcpy(&wan_udp_pkt->wan_udp_data,&mb->wan_data,mb->wan_data_len);
|
|
}
|
|
|
|
wan_udp_pkt->wan_udp_data_len = mb->wan_data_len;
|
|
|
|
} /* end of switch */
|
|
} /* end of else */
|
|
|
|
/* Fill UDP TTL */
|
|
wan_udp_pkt->wan_ip_ttl = card->wandev.ttl;
|
|
|
|
if (local_dev){
|
|
wan_udp_pkt->wan_udp_request_reply = UDPMGMT_REPLY;
|
|
return;
|
|
}
|
|
|
|
len = reply_udp(ppp_priv_area->udp_pkt_data, wan_udp_pkt->wan_udp_data_len);
|
|
|
|
if (ppp_priv_area->udp_pkt_src == UDP_PKT_FRM_NETWORK) {
|
|
|
|
/* Make sure we are not already sending */
|
|
if (!test_bit(SEND_CRIT,&card->wandev.critical)){
|
|
++ppp_priv_area->pipe_mgmt_stat.UDP_PIPE_mgmt_passed_to_adptr;
|
|
ppp_send(card,ppp_priv_area->udp_pkt_data,len,ppp_priv_area->protocol);
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Pass it up the stack
|
|
Allocate socket buffer */
|
|
if ((new_skb = dev_alloc_skb(len)) != NULL) {
|
|
|
|
/* copy data into new_skb */
|
|
|
|
buf = skb_put(new_skb, len);
|
|
memcpy(buf,ppp_priv_area->udp_pkt_data, len);
|
|
|
|
++ppp_priv_area->pipe_mgmt_stat.UDP_PIPE_mgmt_passed_to_stack;
|
|
|
|
/* Decapsulate packet and pass it up the protocol
|
|
stack */
|
|
new_skb->protocol = ppp_priv_area->protocol;
|
|
new_skb->dev = dev;
|
|
wan_skb_reset_mac_header(new_skb);
|
|
|
|
netif_rx(new_skb);
|
|
|
|
} else {
|
|
|
|
++ppp_priv_area->pipe_mgmt_stat.UDP_PIPE_mgmt_no_socket;
|
|
printk(KERN_INFO "no socket buffers available!\n");
|
|
}
|
|
}
|
|
|
|
atomic_set(&ppp_priv_area->udp_pkt_len,0);
|
|
return;
|
|
}
|
|
|
|
/*=============================================================================
|
|
* Initial the ppp_private_area structure.
|
|
*/
|
|
static void init_ppp_priv_struct( ppp_private_area_t *ppp_priv_area )
|
|
{
|
|
|
|
memset(&ppp_priv_area->if_send_stat, 0, sizeof(if_send_stat_t));
|
|
memset(&ppp_priv_area->rx_intr_stat, 0, sizeof(rx_intr_stat_t));
|
|
memset(&ppp_priv_area->pipe_mgmt_stat, 0, sizeof(pipe_mgmt_stat_t));
|
|
}
|
|
|
|
/*============================================================================
|
|
* Initialize Global Statistics
|
|
*/
|
|
static void init_global_statistics( sdla_t *card )
|
|
{
|
|
memset(&card->statistics, 0, sizeof(global_stats_t));
|
|
}
|
|
|
|
/*============================================================================
|
|
* Initialize Receive and Transmit Buffers.
|
|
*/
|
|
static void init_ppp_tx_rx_buff( sdla_t *card )
|
|
{
|
|
ppp508_buf_info_t info;
|
|
unsigned long info_off;
|
|
|
|
/* Alex Apr 8 2004 Sangoma ISA card */
|
|
info_off = PPP514_BUF_OFFS;
|
|
card->hw_iface.peek(card->hw, info_off, &info, sizeof(info));
|
|
|
|
card->u.p.txbuf_base_off = info.txb_ptr;
|
|
|
|
card->u.p.txbuf_last_off =
|
|
card->u.p.txbuf_base_off +
|
|
(info.txb_num - 1) * sizeof(ppp_buf_ctl_t);
|
|
card->u.p.rxbuf_base_off = info.rxb_ptr;
|
|
card->u.p.rxbuf_last_off =
|
|
card->u.p.rxbuf_base_off +
|
|
(info.rxb_num - 1) * sizeof(ppp_buf_ctl_t);
|
|
|
|
card->u.p.txbuf_next_off = info.txb_nxt;
|
|
card->u.p.rxbuf_next_off = info.rxb1_ptr;
|
|
|
|
card->u.p.rx_base_off = info.rxb_base;
|
|
card->u.p.rx_top_off = info.rxb_end;
|
|
|
|
card->u.p.txbuf_off = card->u.p.txbuf_base_off;
|
|
card->rxmb_off = card->u.p.rxbuf_base_off;
|
|
|
|
}
|
|
/*=============================================================================
|
|
* Read Connection Information (ie for Remote IP address assginment).
|
|
* Called when ppp interface connected.
|
|
*/
|
|
static int read_info( sdla_t *card )
|
|
{
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
int err;
|
|
struct ifreq if_info;
|
|
struct sockaddr_in *if_data1, *if_data2;
|
|
mm_segment_t fs;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return 0;
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
|
|
/* Set Local and remote addresses */
|
|
memset(&if_info, 0, sizeof(if_info));
|
|
strcpy(if_info.ifr_name, dev->name);
|
|
|
|
|
|
fs = get_fs();
|
|
set_fs(get_ds()); /* get user space block */
|
|
|
|
/* Change the local and remote ip address of the interface.
|
|
* This will also add in the destination route.
|
|
*/
|
|
if_data1 = (struct sockaddr_in *)&if_info.ifr_addr;
|
|
if_data1->sin_addr.s_addr = ppp_priv_area->ip_local;
|
|
if_data1->sin_family = AF_INET;
|
|
err = wp_devinet_ioctl( SIOCSIFADDR, &if_info );
|
|
if_data2 = (struct sockaddr_in *)&if_info.ifr_dstaddr;
|
|
if_data2->sin_addr.s_addr = ppp_priv_area->ip_remote;
|
|
if_data2->sin_family = AF_INET;
|
|
err = wp_devinet_ioctl( SIOCSIFDSTADDR, &if_info );
|
|
|
|
set_fs(fs); /* restore old block */
|
|
|
|
if (err) {
|
|
printk (KERN_INFO "%s: Adding of route failed: %i\n",
|
|
card->devname,err);
|
|
printk (KERN_INFO "%s: Local : %u.%u.%u.%u\n",
|
|
card->devname,NIPQUAD(ppp_priv_area->ip_local));
|
|
printk (KERN_INFO "%s: Remote: %u.%u.%u.%u\n",
|
|
card->devname,NIPQUAD(ppp_priv_area->ip_remote));
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/*=============================================================================
|
|
* Remove Dynamic Route.
|
|
* Called when ppp interface disconnected.
|
|
*/
|
|
|
|
static void remove_route( sdla_t *card )
|
|
{
|
|
netdevice_t *dev;
|
|
long ip_addr;
|
|
int err;
|
|
mm_segment_t fs;
|
|
struct ifreq if_info;
|
|
struct sockaddr_in *if_data1;
|
|
struct in_device *in_dev;
|
|
struct in_ifaddr *ifa;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev)
|
|
return;
|
|
in_dev = dev->ip_ptr;
|
|
if (!in_dev)
|
|
return;
|
|
|
|
if (!(ifa = in_dev->ifa_list))
|
|
return;
|
|
|
|
ip_addr = ifa->ifa_local;
|
|
|
|
/* Set Local and remote addresses */
|
|
memset(&if_info, 0, sizeof(if_info));
|
|
strcpy(if_info.ifr_name, dev->name);
|
|
|
|
fs = get_fs();
|
|
set_fs(get_ds()); /* get user space block */
|
|
|
|
|
|
/* Change the local ip address of the interface to 0.
|
|
* This will also delete the destination route.
|
|
*/
|
|
if_data1 = (struct sockaddr_in *)&if_info.ifr_addr;
|
|
if_data1->sin_addr.s_addr = 0;
|
|
if_data1->sin_family = AF_INET;
|
|
err = wp_devinet_ioctl( SIOCSIFADDR, &if_info );
|
|
|
|
set_fs(fs); /* restore old block */
|
|
|
|
|
|
if (err) {
|
|
printk (KERN_INFO "%s: Deleting dynamic route failed %d!\n",
|
|
card->devname, err);
|
|
return;
|
|
}else{
|
|
printk (KERN_INFO "%s: PPP Deleting dynamic route %u.%u.%u.%u successfuly\n",
|
|
card->devname, NIPQUAD(ip_addr));
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*=============================================================================
|
|
* Perform the Interrupt Test by running the READ_CODE_VERSION command MAX_INTR
|
|
* _TEST_COUNTER times.
|
|
*/
|
|
static int intr_test( sdla_t *card )
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
int err,i;
|
|
|
|
err = ppp_set_intr_mode( card, 0x08 );
|
|
|
|
if (err == CMD_OK) {
|
|
|
|
for (i = 0; i < MAX_INTR_TEST_COUNTER; i ++) {
|
|
/* Run command READ_CODE_VERSION */
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_data_len = 0;
|
|
mb->wan_command = PPP_READ_CODE_VERSION;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != CMD_OK)
|
|
ppp_error(card, err, mb);
|
|
}
|
|
}
|
|
else return err;
|
|
|
|
err = ppp_set_intr_mode( card, 0 );
|
|
if (err != CMD_OK)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*==============================================================================
|
|
* Determine what type of UDP call it is. DRVSTATS or PTPIPEAB ?
|
|
*/
|
|
|
|
static int udp_pkt_type(struct sk_buff *skb, sdla_t* card)
|
|
{
|
|
wan_udp_pkt_t *wan_udp_pkt = (wan_udp_pkt_t *)skb->data;
|
|
|
|
if (skb->len < sizeof(wan_udp_pkt_t)){
|
|
return UDP_INVALID_TYPE;
|
|
}
|
|
|
|
#ifdef _WAN_UDP_DEBUG
|
|
printk(KERN_INFO "SIG %s = %s\n\
|
|
UPP %x = %x\n\
|
|
PRT %x = %x\n\
|
|
REQ %i = %i\n\
|
|
36 th = %x 37th = %x\n",
|
|
wan_udp_pkt->wan_udp_signature,
|
|
UDPMGMT_SIGNATURE,
|
|
wan_udp_pkt->wan_udp_dport,
|
|
ntohs(card->wandev.udp_port),
|
|
wan_udp_pkt->wan_ip_p,
|
|
UDPMGMT_UDP_PROTOCOL,
|
|
wan_udp_pkt->wan_udp_request_reply,
|
|
UDPMGMT_REQUEST,
|
|
skb->data[36], skb->data[37]);
|
|
#endif
|
|
|
|
if ((wan_udp_pkt->wan_udp_dport == ntohs(card->wandev.udp_port)) &&
|
|
(wan_udp_pkt->wan_ip_p == UDPMGMT_UDP_PROTOCOL) &&
|
|
(wan_udp_pkt->wan_udp_request_reply == UDPMGMT_REQUEST)) {
|
|
|
|
if (!strncmp(wan_udp_pkt->wan_udp_signature,UDPMGMT_SIGNATURE,8)){
|
|
return UDP_PTPIPE_TYPE;
|
|
}
|
|
if (!strncmp(wan_udp_pkt->wan_udp_signature,GLOBAL_UDP_SIGNATURE,8)){
|
|
return UDP_PTPIPE_TYPE;
|
|
}
|
|
|
|
if (!strncmp(wan_udp_pkt->wan_udp_signature,UDPDRV_SIGNATURE,8)){
|
|
return UDP_DRVSTATS_TYPE;
|
|
}
|
|
|
|
}
|
|
|
|
return UDP_INVALID_TYPE;
|
|
}
|
|
|
|
/*============================================================================
|
|
* Check to see if the packet to be transmitted contains a broadcast or
|
|
* multicast source IP address.
|
|
*/
|
|
|
|
static int chk_bcast_mcast_addr(sdla_t *card, netdevice_t* dev,
|
|
struct sk_buff *skb)
|
|
{
|
|
u32 src_ip_addr;
|
|
u32 broadcast_ip_addr = 0;
|
|
struct in_device *in_dev;
|
|
/* read the IP source address from the outgoing packet */
|
|
src_ip_addr = *(u32 *)(skb->data + 12);
|
|
|
|
/* read the IP broadcast address for the device */
|
|
in_dev = dev->ip_ptr;
|
|
if(in_dev != NULL) {
|
|
struct in_ifaddr *ifa= in_dev->ifa_list;
|
|
if(ifa != NULL)
|
|
broadcast_ip_addr = ifa->ifa_broadcast;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* check if the IP Source Address is a Broadcast address */
|
|
if((dev->flags & IFF_BROADCAST) && (src_ip_addr == broadcast_ip_addr)) {
|
|
printk(KERN_INFO "%s: Broadcast Source Address silently discarded\n",
|
|
card->devname);
|
|
return 1;
|
|
}
|
|
|
|
/* check if the IP Source Address is a Multicast address */
|
|
if((ntohl(src_ip_addr) >= 0xE0000001) &&
|
|
(ntohl(src_ip_addr) <= 0xFFFFFFFE)) {
|
|
printk(KERN_INFO "%s: Multicast Source Address silently discarded\n",
|
|
card->devname);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void s508_lock (sdla_t *card, unsigned long *smp_flags)
|
|
{
|
|
spin_lock_irqsave(&card->wandev.lock, *smp_flags);
|
|
}
|
|
|
|
void s508_unlock (sdla_t *card, unsigned long *smp_flags)
|
|
{
|
|
spin_unlock_irqrestore(&card->wandev.lock, *smp_flags);
|
|
}
|
|
|
|
static int read_connection_info (sdla_t *card)
|
|
{
|
|
wan_mbox_t *mb = &card->wan_mbox;
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
ppp508_connect_info_t *ppp508_connect_info;
|
|
int err;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return 0;
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
memset(&mb->wan_cmd, 0, sizeof(ppp_cmd_t));
|
|
mb->wan_data_len = 0;
|
|
mb->wan_command = PPP_GET_CONNECTION_INFO;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
if (err != CMD_OK) {
|
|
ppp_error(card, err, mb);
|
|
ppp_priv_area->ip_remote = 0;
|
|
ppp_priv_area->ip_local = 0;
|
|
}
|
|
else {
|
|
ppp508_connect_info = (ppp508_connect_info_t *)mb->wan_data;
|
|
ppp_priv_area->ip_remote = ppp508_connect_info->ip_remote;
|
|
ppp_priv_area->ip_local = ppp508_connect_info->ip_local;
|
|
|
|
NEX_PRINTK(KERN_INFO "READ CONNECTION GOT IP ADDRESS %x, %x\n",
|
|
ppp_priv_area->ip_remote,
|
|
ppp_priv_area->ip_local);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/*===============================================================================
|
|
* config_ppp
|
|
*
|
|
* Configure the ppp protocol and enable communications.
|
|
*
|
|
* The if_open function binds this function to the poll routine.
|
|
* Therefore, this function will run every time the ppp interface
|
|
* is brought up.
|
|
*
|
|
* If the communications are not enabled, proceed to configure
|
|
* the card and enable communications.
|
|
*
|
|
* If the communications are enabled, it means that the interface
|
|
* was shutdown by ether the user or driver. In this case, we
|
|
* have to check that the IP addresses have not changed. If
|
|
* the IP addresses changed, we have to reconfigure the firmware
|
|
* and update the changed IP addresses. Otherwise, just exit.
|
|
*/
|
|
static int config_ppp (sdla_t *card)
|
|
{
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return 0;
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
if (card->u.p.comm_enabled){
|
|
|
|
if (ppp_priv_area->ip_local_tmp != ppp_priv_area->ip_local ||
|
|
ppp_priv_area->ip_remote_tmp != ppp_priv_area->ip_remote){
|
|
|
|
/* The IP addersses have changed, we must
|
|
* stop the communications and reconfigure
|
|
* the card. Reason: the firmware must know
|
|
* the local and remote IP addresses. */
|
|
disable_comm(card);
|
|
ppp_priv_area->ppp_state = WAN_DISCONNECTED;
|
|
wanpipe_set_state(card, WAN_DISCONNECTED);
|
|
printk(KERN_INFO
|
|
"%s: IP addresses changed!\n",
|
|
card->devname);
|
|
printk(KERN_INFO "%s: Restarting communications ...\n",
|
|
card->devname);
|
|
}else{
|
|
/* IP addresses are the same and the link is up,
|
|
* we dont have to do anything here. Therefore, exit */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
card->hw_iface.poke_byte(card->hw, card->intr_type_off, 0x00);
|
|
card->hw_iface.poke_byte(card->hw, card->intr_perm_off, 0x00);
|
|
|
|
|
|
if (IS_TE1_CARD(card)) {
|
|
int err = -EINVAL;
|
|
printk(KERN_INFO "%s: Configuring onboard %s CSU/DSU\n",
|
|
card->devname,
|
|
(IS_T1_CARD(card))?"T1":"E1");
|
|
if (card->wandev.fe_iface.config){
|
|
err = card->wandev.fe_iface.config(&card->fe);
|
|
}
|
|
if (err){
|
|
printk(KERN_INFO "%s: Failed %s configuratoin!\n",
|
|
card->devname,
|
|
(IS_T1_CARD(card))?"T1":"E1");
|
|
return 0;
|
|
}
|
|
|
|
}else if (IS_56K_CARD(card)) {
|
|
int err = -EINVAL;
|
|
printk(KERN_INFO "%s: Configuring 56K onboard CSU/DSU\n",
|
|
card->devname);
|
|
|
|
if (card->wandev.fe_iface.config){
|
|
err = card->wandev.fe_iface.config(&card->fe);
|
|
}
|
|
if (err){
|
|
printk (KERN_INFO "%s: Failed 56K configuration!\n",
|
|
card->devname);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
/* Record the new IP addreses */
|
|
ppp_priv_area->ip_local = ppp_priv_area->ip_local_tmp;
|
|
ppp_priv_area->ip_remote = ppp_priv_area->ip_remote_tmp;
|
|
|
|
if (config508(dev, card)){
|
|
printk(KERN_INFO "%s: Failed to configure PPP device\n",
|
|
card->devname);
|
|
return 0;
|
|
}
|
|
|
|
if (ppp_set_intr_mode(card, PPP_INTR_RXRDY|
|
|
PPP_INTR_TXRDY|
|
|
PPP_INTR_MODEM|
|
|
PPP_INTR_DISC |
|
|
PPP_INTR_OPEN |
|
|
PPP_INTR_DROP_DTR |
|
|
PPP_INTR_TIMER)) {
|
|
|
|
printk(KERN_INFO "%s: Failed to configure board interrupts !\n",
|
|
card->devname);
|
|
return 0;
|
|
}
|
|
|
|
/* Turn off the transmit and timer interrupt */
|
|
card->hw_iface.clear_bit(card->hw, card->intr_perm_off, (PPP_INTR_RXRDY|
|
|
PPP_INTR_TXRDY|
|
|
PPP_INTR_MODEM|
|
|
PPP_INTR_DISC |
|
|
PPP_INTR_OPEN |
|
|
PPP_INTR_DROP_DTR |
|
|
PPP_INTR_TIMER));
|
|
|
|
/* If you are not the authenticator and any one of the protocol is
|
|
* enabled then we call the set_out_bound_authentication.
|
|
*/
|
|
if ( !card->u.p.authenticator && (ppp_priv_area->pap || ppp_priv_area->chap)) {
|
|
if ( ppp_set_outbnd_auth(card, ppp_priv_area) ){
|
|
printk(KERN_INFO "%s: Outbound authentication failed !\n",
|
|
card->devname);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* If you are the authenticator and any one of the protocol is enabled
|
|
* then we call the set_in_bound_authentication.
|
|
*/
|
|
if (card->u.p.authenticator && (ppp_priv_area->pap || ppp_priv_area->chap)){
|
|
if (ppp_set_inbnd_auth(card, ppp_priv_area)){
|
|
printk(KERN_INFO "%s: Inbound authentication failed !\n",
|
|
card->devname);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
/* Turn on all masked interrupts except for
|
|
* tx and timer interrupts */
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off,
|
|
(PPP_INTR_RXRDY| PPP_INTR_MODEM|
|
|
PPP_INTR_DISC | PPP_INTR_OPEN | PPP_INTR_DROP_DTR));
|
|
|
|
/* If we fail to enable communications here it's OK,
|
|
* since the DTR timer will cause a disconnected, which
|
|
* will retrigger communication in timer_intr() */
|
|
if (ppp_comm_enable(card) == CMD_OK) {
|
|
ppp_priv_area->ppp_state = WAN_CONNECTING;
|
|
wanpipe_set_state(card, WAN_CONNECTING);
|
|
init_ppp_tx_rx_buff(card);
|
|
}
|
|
|
|
/* Manually poll the 56K CSU/DSU to get the status */
|
|
if (IS_56K_CARD(card)) {
|
|
/* 56K Update CSU/DSU alarms */
|
|
card->wandev.fe_iface.read_alarm(&card->fe, 1);
|
|
}
|
|
|
|
/* Run WANPIPE debugging */
|
|
WAN_DEBUG_START(card);
|
|
return 0;
|
|
}
|
|
|
|
/*============================================================
|
|
* ppp_poll
|
|
*
|
|
* Rationale:
|
|
* We cannot manipulate the routing tables, or
|
|
* ip addresses withing the interrupt. Therefore
|
|
* we must perform such actons outside an interrupt
|
|
* at a later time.
|
|
*
|
|
* Description:
|
|
* PPP polling routine, responsible for
|
|
* shutting down interfaces upon disconnect
|
|
* and adding/removing routes.
|
|
*
|
|
* Usage:
|
|
* This function is executed for each ppp
|
|
* interface through a tq_schedule bottom half.
|
|
*
|
|
* trigger_ppp_poll() function is used to kick
|
|
* the ppp_poll routine.
|
|
*/
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
|
|
static void ppp_poll (void *dev_ptr)
|
|
#else
|
|
static void ppp_poll (struct work_struct *work)
|
|
#endif
|
|
{
|
|
sdla_t *card;
|
|
u8 check_gateway=0;
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area = container_of(work, ppp_private_area_t, poll_task);
|
|
dev=ppp_priv_area->common.dev;
|
|
if (!dev) {
|
|
return;
|
|
}
|
|
#else
|
|
netdevice_t *dev=dev_ptr;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
if (!dev || (ppp_priv_area = dev->priv) == NULL)
|
|
return;
|
|
#endif
|
|
|
|
card = ppp_priv_area->card;
|
|
|
|
/* Shutdown is in progress, stop what you are
|
|
* doing and get out */
|
|
if (test_bit(PERI_CRIT,&card->wandev.critical)){
|
|
clear_bit(POLL_CRIT,&card->wandev.critical);
|
|
return;
|
|
}
|
|
|
|
/* if_open() function has triggered the polling routine
|
|
* to determine the configured IP addresses. Once the
|
|
* addresses are found, trigger the chdlc configuration */
|
|
if (test_bit(0,&ppp_priv_area->config_ppp)){
|
|
|
|
ppp_priv_area->ip_local_tmp = get_ip_address(dev,WAN_LOCAL_IP);
|
|
ppp_priv_area->ip_remote_tmp = get_ip_address(dev,WAN_POINTOPOINT_IP);
|
|
|
|
if (ppp_priv_area->ip_local_tmp == ppp_priv_area->ip_remote_tmp &&
|
|
card->u.p.ip_mode == WANOPT_PPP_HOST){
|
|
|
|
if (++ppp_priv_area->ip_error > MAX_IP_ERRORS){
|
|
printk(KERN_INFO "\n");
|
|
printk(KERN_INFO "%s: --- WARNING ---\n",
|
|
card->devname);
|
|
printk(KERN_INFO "%s: The local IP address is the same as the\n",
|
|
card->devname);
|
|
printk(KERN_INFO "%s: Point-to-Point IP address.\n",
|
|
card->devname);
|
|
printk(KERN_INFO "%s: --- WARNING ---\n\n",
|
|
card->devname);
|
|
}else{
|
|
clear_bit(POLL_CRIT,&card->wandev.critical);
|
|
ppp_priv_area->poll_delay_timer.expires = jiffies+HZ;
|
|
add_timer(&ppp_priv_area->poll_delay_timer);
|
|
return;
|
|
}
|
|
}
|
|
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_CONFIG;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
ppp_priv_area->ip_error=0;
|
|
|
|
clear_bit(0,&ppp_priv_area->config_ppp);
|
|
clear_bit(POLL_CRIT,&card->wandev.critical);
|
|
return;
|
|
}
|
|
|
|
/* Dynamic interface implementation, as well as dynamic
|
|
* routing. */
|
|
|
|
switch (card->wandev.state) {
|
|
|
|
case WAN_DISCONNECTED:
|
|
|
|
/* If the dynamic interface configuration is on, and interface
|
|
* is up, then bring down the netowrk interface */
|
|
|
|
if (test_bit(DYN_OPT_ON,&ppp_priv_area->interface_down) &&
|
|
!test_bit(DEV_DOWN,&ppp_priv_area->interface_down) &&
|
|
dev->flags & IFF_UP){
|
|
|
|
printk(KERN_INFO "%s: Interface %s down.\n",
|
|
card->devname, dev->name);
|
|
change_dev_flags(dev, (dev->flags&~IFF_UP));
|
|
set_bit(DEV_DOWN,&ppp_priv_area->interface_down);
|
|
}else{
|
|
/* We need to check if the local IP address is
|
|
* zero. If it is, we shouldn't try to remove it.
|
|
* For some reason the kernel crashes badly if
|
|
* we try to remove the route twice */
|
|
|
|
if (dev->flags & IFF_UP &&
|
|
get_ip_address(dev,WAN_LOCAL_IP) &&
|
|
card->u.p.ip_mode == WANOPT_PPP_PEER){
|
|
|
|
remove_route(card);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WAN_CONNECTED:
|
|
|
|
/* In SMP machine this code can execute before the interface
|
|
* comes up. In this case, we must make sure that we do not
|
|
* try to bring up the interface before dev_open() is finished */
|
|
|
|
/* DEV_DOWN will be set only when we bring down the interface
|
|
* for the very first time. This way we know that it was us
|
|
* that brought the interface down */
|
|
|
|
if (test_bit(DYN_OPT_ON,&ppp_priv_area->interface_down) &&
|
|
test_bit(DEV_DOWN, &ppp_priv_area->interface_down) &&
|
|
!(dev->flags & IFF_UP)){
|
|
|
|
printk(KERN_INFO "%s: Interface %s up.\n",
|
|
card->devname,dev->name);
|
|
|
|
change_dev_flags(dev,(dev->flags|IFF_UP));
|
|
clear_bit(DEV_DOWN,&ppp_priv_area->interface_down);
|
|
check_gateway=1;
|
|
}
|
|
|
|
if ((card->u.p.ip_mode == WANOPT_PPP_PEER) &&
|
|
test_bit(1,&Read_connection_info)) {
|
|
|
|
process_route(card);
|
|
clear_bit(1,&Read_connection_info);
|
|
check_gateway=1;
|
|
}
|
|
|
|
if (ppp_priv_area->gateway && check_gateway)
|
|
add_gateway(card,dev);
|
|
|
|
break;
|
|
}
|
|
clear_bit(POLL_CRIT,&card->wandev.critical);
|
|
return;
|
|
}
|
|
|
|
/*============================================================
|
|
* trigger_ppp_poll
|
|
*
|
|
* Description:
|
|
* Add a ppp_poll() task into a tq_scheduler bh handler
|
|
* for a specific interface. This will kick
|
|
* the ppp_poll() routine at a later time.
|
|
*
|
|
* Usage:
|
|
* Interrupts use this to defer a taks to
|
|
* a polling routine.
|
|
*
|
|
*/
|
|
|
|
static void trigger_ppp_poll (netdevice_t *dev)
|
|
{
|
|
ppp_private_area_t *ppp_priv_area;
|
|
|
|
if ((ppp_priv_area=dev->priv) != NULL){
|
|
|
|
sdla_t *card = ppp_priv_area->card;
|
|
|
|
if (test_bit(PERI_CRIT,&card->wandev.critical)){
|
|
return;
|
|
}
|
|
|
|
if (test_and_set_bit(POLL_CRIT,&card->wandev.critical)){
|
|
return;
|
|
}
|
|
|
|
WAN_TASKQ_SCHEDULE((&ppp_priv_area->poll_task));
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void ppp_poll_delay (unsigned long dev_ptr)
|
|
{
|
|
netdevice_t *dev = (netdevice_t *)dev_ptr;
|
|
trigger_ppp_poll(dev);
|
|
}
|
|
|
|
/*============================================================
|
|
* detect_and_fix_tx_bug
|
|
*
|
|
* Description:
|
|
* On connect, if the board tx buffer ptr is not the same
|
|
* as the driver tx buffer ptr, we found a firmware bug.
|
|
* Report the bug to the above layer. To fix the
|
|
* error restart communications again.
|
|
*
|
|
* Usage:
|
|
*
|
|
*/
|
|
|
|
static int detect_and_fix_tx_bug (sdla_t *card)
|
|
{
|
|
if ((card->u.p.txbuf_base_off & 0xFFF) != (card->u.p.txbuf_next_off & 0xFFF)){
|
|
NEX_PRINTK(KERN_INFO "Major Error, Fix the bug\n");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int set_adapter_config (sdla_t* card)
|
|
{
|
|
wan_mbox_t * mb = &card->wan_mbox;
|
|
ADAPTER_CONFIGURATION_STRUCT* cfg = (ADAPTER_CONFIGURATION_STRUCT*)mb->wan_data;
|
|
int err;
|
|
|
|
card->hw_iface.getcfg(card->hw, SDLA_ADAPTERTYPE, &cfg->adapter_type);
|
|
cfg->adapter_config = 0x00;
|
|
cfg->operating_frequency = 00;
|
|
mb->wan_data_len = sizeof(ADAPTER_CONFIGURATION_STRUCT);
|
|
mb->wan_command = SET_ADAPTER_CONFIGURATION;
|
|
err = card->hw_iface.cmd(card->hw, card->mbox_off, mb);
|
|
|
|
if(err != 0) {
|
|
ppp_error(card,err,mb);
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
|
|
/*
|
|
* ******************************************************************
|
|
* Proc FS function
|
|
*/
|
|
#define PROC_CFG_FRM "%-15s| %-12s|\n"
|
|
#define PROC_STAT_FRM "%-15s| %-12s| %-14s|\n"
|
|
static char ppp_config_hdr[] =
|
|
"Interface name | Device name |\n";
|
|
static char ppp_status_hdr[] =
|
|
"Interface name | Device name | Status |\n";
|
|
|
|
static int ppp_get_config_info(void* priv, struct seq_file* m, int* stop_cnt)
|
|
{
|
|
ppp_private_area_t* ppp_priv_area = priv;
|
|
sdla_t* card = NULL;
|
|
|
|
if (ppp_priv_area == NULL)
|
|
return m->count;
|
|
card = ppp_priv_area->card;
|
|
|
|
if ((m->from == 0 && m->count == 0) || (m->from && m->from == *stop_cnt)){
|
|
PROC_ADD_LINE(m,
|
|
"%s", ppp_config_hdr);
|
|
}
|
|
|
|
PROC_ADD_LINE(m,
|
|
PROC_CFG_FRM, ppp_priv_area->if_name, card->devname);
|
|
return m->count;
|
|
}
|
|
|
|
static int ppp_get_status_info(void* priv, struct seq_file* m, int* stop_cnt)
|
|
{
|
|
ppp_private_area_t* ppp_priv_area = priv;
|
|
sdla_t* card = NULL;
|
|
|
|
if (ppp_priv_area == NULL)
|
|
return m->count;
|
|
card = ppp_priv_area->card;
|
|
|
|
if ((m->from == 0 && m->count == 0) || (m->from && m->from == *stop_cnt)){
|
|
PROC_ADD_LINE(m,
|
|
"%s", ppp_status_hdr);
|
|
}
|
|
|
|
PROC_ADD_LINE(m,
|
|
PROC_STAT_FRM, ppp_priv_area->if_name, card->devname, STATE_DECODE(card->wandev.state));
|
|
return m->count;
|
|
}
|
|
|
|
|
|
#define PROC_DEV_PPP_S_FRM "%-20s| %-14s|\n"
|
|
#define PROC_DEV_PPP_D_FRM "%-20s| %-14d|\n"
|
|
#define PROC_DEV_SEPARATE "=====================================\n"
|
|
|
|
static int ppp_set_dev_config(struct file *file,
|
|
const char *buffer,
|
|
unsigned long count,
|
|
void *data)
|
|
{
|
|
int cnt = 0;
|
|
wan_device_t* wandev = (void*)data;
|
|
sdla_t* card = NULL;
|
|
|
|
if (wandev == NULL)
|
|
return cnt;
|
|
|
|
card = (sdla_t*)wandev->private;
|
|
|
|
printk(KERN_INFO "%s: New device config (%s)\n",
|
|
wandev->name, buffer);
|
|
/* Parse string */
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
******************************************************************************
|
|
* ppp_snmp_data()
|
|
*
|
|
* Description: Save snmp request and parameters in private structure, enable
|
|
* TIMER interrupt, put current process in sleep.
|
|
* Arguments:
|
|
* Returns:
|
|
******************************************************************************
|
|
*/
|
|
#define PPPLINKSTATUSPHYSICALINDEX 3
|
|
#define PPPLINKSTATUSBADADDRESSES 4
|
|
#define PPPLINKSTATUSBADCONTROLS 5
|
|
#define PPPLINKSTATUSPACKETTOOLONGS 6
|
|
#define PPPLINKSTATUSBADFCSS 7
|
|
#define PPPLINKSTATUSLOCALMRU 8
|
|
#define PPPLINKSTATUSREMOTEMRU 9
|
|
#define PPPLINKSTATUSLOCALTOPEERACCMAP 10
|
|
#define PPPLINKSTATUSPEERTOLOCALACCMAP 11
|
|
#define PPPLINKSTATUSLOCALTOREMOTEPROTOCOLCOMPRESSION 12
|
|
#define PPPLINKSTATUSREMOTETOLOCALPROTOCOLCOMPRESSION 13
|
|
#define PPPLINKSTATUSLOCALTOREMOTEACCOMPRESSION 14
|
|
#define PPPLINKSTATUSREMOTETOLOCALACCOMPRESSION 15
|
|
#define PPPLINKSTATUSTRANSMITFCSSIZE 16
|
|
#define PPPLINKSTATUSRECEIVEFCSSIZE 17
|
|
#define PPPLINKCONFIGINITIALMRU 20
|
|
#define PPPLINKCONFIGRECEIVEACCMAP 21
|
|
#define PPPLINKCONFIGTRANSMITACCMAP 22
|
|
#define PPPLINKCONFIGMAGICNUMBER 23
|
|
#define PPPLINKCONFIGFCSSIZE 24
|
|
#define PPPLQRQUALITY 27
|
|
#define PPPLQRINGOODOCTETS 28
|
|
#define PPPLQRLOCALPERIOD 29
|
|
#define PPPLQRREMOTEPERIOD 30
|
|
#define PPPLQROUTLQRS 31
|
|
#define PPPLQRINLQRS 32
|
|
#define PPPLQRCONFIGPERIOD 35
|
|
#define PPPLQRCONFIGSTATUS 36
|
|
#define PPPLQREXTNSLASTRECEIVEDLQRPACKET 39
|
|
#define PPPSECURITYCONFIGLINK 42
|
|
#define PPPSECURITYCONFIGPREFERENCE 43
|
|
#define PPPSECURITYCONFIGPROTOCOL 44
|
|
#define PPPSECURITYCONFIGSTATUS 45
|
|
#define PPPSECURITYSECRETSLINK 48
|
|
#define PPPSECURITYSECRETSIDINDEX 49
|
|
#define PPPSECURITYSECRETSDIRECTION 50
|
|
#define PPPSECURITYSECRETSPROTOCOL 51
|
|
#define PPPSECURITYSECRETSIDENTITY 52
|
|
#define PPPSECURITYSECRETSSECRET 53
|
|
#define PPPSECURITYSECRETSSTATUS 54
|
|
#define PPPIPOPERSTATUS 57
|
|
#define PPPIPLOCALTOREMOTECOMPRESSIONPROTOCOL 58
|
|
#define PPPIPREMOTETOLOCALCOMPRESSIONPROTOCOL 59
|
|
#define PPPIPREMOTEMAXSLOTID 60
|
|
#define PPPIPLOCALMAXSLOTID 61
|
|
#define PPPIPCONFIGADMINSTATUS 64
|
|
#define PPPIPCONFIGCOMPRESSION 65
|
|
#define PPPBRIDGEOPERSTATUS 68
|
|
#define PPPBRIDGELOCALTOREMOTETINYGRAMCOMPRESSION 69
|
|
#define PPPBRIDGEREMOTETOLOCALTINYGRAMCOMPRESSION 70
|
|
#define PPPBRIDGELOCALTOREMOTELANID 71
|
|
#define PPPBRIDGEREMOTETOLOCALLANID 72
|
|
#define PPPBRIDGECONFIGADMINSTATUS 75
|
|
#define PPPBRIDGECONFIGTINYGRAM 76
|
|
#define PPPBRIDGECONFIGRINGID 77
|
|
#define PPPBRIDGECONFIGLINEID 78
|
|
#define PPPBRIDGECONFIGLANID 79
|
|
#define PPPBRIDGEMEDIAMACTYPE 82
|
|
#define PPPBRIDGEMEDIALOCALSTATUS 83
|
|
#define PPPBRIDGEMEDIAREMOTESTATUS 84
|
|
#define PPPBRIDGEMEDIACONFIGMACTYPE 87
|
|
|
|
//static int ppp_snmp_data(netdevice_t *dev, struct ifreq* ifr)
|
|
static int ppp_snmp_data(sdla_t* card, netdevice_t *dev, void* data)
|
|
{
|
|
ppp_private_area_t* ppp_priv_area = NULL;
|
|
wanpipe_snmp_t* snmp;
|
|
|
|
if (dev == NULL || dev->priv == NULL)
|
|
return -EFAULT;
|
|
ppp_priv_area = (ppp_private_area_t*)dev->priv;
|
|
if (card->wandev.update) {
|
|
int rslt = 0;
|
|
rslt = card->wandev.update(&card->wandev);
|
|
if(rslt) {
|
|
return (rslt) ? (-EBUSY) : (-EINVAL);
|
|
}
|
|
}
|
|
snmp = (wanpipe_snmp_t*)data;
|
|
|
|
switch(snmp->snmp_magic){
|
|
/* PPP Link Group */
|
|
case PPPLINKSTATUSPHYSICALINDEX:
|
|
case PPPLINKSTATUSBADADDRESSES:
|
|
case PPPLINKSTATUSBADCONTROLS:
|
|
return -EINVAL;
|
|
|
|
case PPPLINKSTATUSPACKETTOOLONGS:
|
|
snmp->snmp_val = card->wandev.stats.rx_length_errors;
|
|
break;
|
|
|
|
case PPPLINKSTATUSBADFCSS:
|
|
case PPPLINKSTATUSLOCALMRU:
|
|
case PPPLINKSTATUSREMOTEMRU:
|
|
case PPPLINKSTATUSLOCALTOPEERACCMAP:
|
|
case PPPLINKSTATUSPEERTOLOCALACCMAP:
|
|
case PPPLINKSTATUSLOCALTOREMOTEPROTOCOLCOMPRESSION:
|
|
case PPPLINKSTATUSREMOTETOLOCALPROTOCOLCOMPRESSION:
|
|
case PPPLINKSTATUSLOCALTOREMOTEACCOMPRESSION:
|
|
case PPPLINKSTATUSREMOTETOLOCALACCOMPRESSION:
|
|
case PPPLINKSTATUSTRANSMITFCSSIZE:
|
|
case PPPLINKSTATUSRECEIVEFCSSIZE:
|
|
case PPPLINKCONFIGINITIALMRU:
|
|
case PPPLINKCONFIGRECEIVEACCMAP:
|
|
case PPPLINKCONFIGTRANSMITACCMAP:
|
|
case PPPLINKCONFIGMAGICNUMBER:
|
|
case PPPLINKCONFIGFCSSIZE:
|
|
case PPPLQRQUALITY:
|
|
case PPPLQRINGOODOCTETS:
|
|
case PPPLQRLOCALPERIOD:
|
|
case PPPLQRREMOTEPERIOD:
|
|
case PPPLQROUTLQRS:
|
|
case PPPLQRINLQRS:
|
|
case PPPLQRCONFIGPERIOD:
|
|
case PPPLQRCONFIGSTATUS:
|
|
case PPPLQREXTNSLASTRECEIVEDLQRPACKET:
|
|
case PPPSECURITYCONFIGLINK:
|
|
case PPPSECURITYCONFIGPREFERENCE:
|
|
case PPPSECURITYCONFIGPROTOCOL:
|
|
case PPPSECURITYCONFIGSTATUS:
|
|
case PPPSECURITYSECRETSLINK:
|
|
case PPPSECURITYSECRETSIDINDEX:
|
|
case PPPSECURITYSECRETSDIRECTION:
|
|
case PPPSECURITYSECRETSPROTOCOL:
|
|
case PPPSECURITYSECRETSIDENTITY:
|
|
case PPPSECURITYSECRETSSECRET:
|
|
case PPPSECURITYSECRETSSTATUS:
|
|
case PPPIPOPERSTATUS:
|
|
case PPPIPLOCALTOREMOTECOMPRESSIONPROTOCOL:
|
|
case PPPIPREMOTETOLOCALCOMPRESSIONPROTOCOL:
|
|
case PPPIPREMOTEMAXSLOTID:
|
|
case PPPIPLOCALMAXSLOTID:
|
|
case PPPIPCONFIGADMINSTATUS:
|
|
case PPPIPCONFIGCOMPRESSION:
|
|
case PPPBRIDGEOPERSTATUS:
|
|
case PPPBRIDGELOCALTOREMOTETINYGRAMCOMPRESSION:
|
|
case PPPBRIDGEREMOTETOLOCALTINYGRAMCOMPRESSION:
|
|
case PPPBRIDGELOCALTOREMOTELANID:
|
|
case PPPBRIDGEREMOTETOLOCALLANID:
|
|
case PPPBRIDGECONFIGADMINSTATUS:
|
|
case PPPBRIDGECONFIGTINYGRAM:
|
|
case PPPBRIDGECONFIGRINGID:
|
|
case PPPBRIDGECONFIGLINEID:
|
|
case PPPBRIDGECONFIGLANID:
|
|
case PPPBRIDGEMEDIAMACTYPE:
|
|
case PPPBRIDGEMEDIALOCALSTATUS:
|
|
case PPPBRIDGEMEDIAREMOTESTATUS:
|
|
case PPPBRIDGEMEDIACONFIGMACTYPE:
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#define PROC_IF_FR_S_FRM "%-30s\t%-14s\n"
|
|
#define PROC_IF_FR_D_FRM "%-30s\t%-14d\n"
|
|
#define PROC_IF_FR_L_FRM "%-30s\t%-14ld\n"
|
|
#define PROC_IF_SEPARATE "====================================================\n"
|
|
|
|
static int ppp_set_if_info(struct file *file,
|
|
const char *buffer,
|
|
unsigned long count,
|
|
void *data)
|
|
{
|
|
netdevice_t* dev = (void*)data;
|
|
ppp_private_area_t* ppp_priv_area = NULL;
|
|
|
|
if (dev == NULL || dev->priv == NULL)
|
|
return count;
|
|
ppp_priv_area = (ppp_private_area_t*)dev->priv;
|
|
|
|
printk(KERN_INFO "%s: New interface config (%s)\n",
|
|
ppp_priv_area->if_name, buffer);
|
|
/* Parse string */
|
|
|
|
return count;
|
|
}
|
|
|
|
static void ppp_handle_front_end_state(void* card_id)
|
|
{
|
|
sdla_t *card = (sdla_t*)card_id;
|
|
netdevice_t *dev;
|
|
ppp_private_area_t *ppp_priv_area;
|
|
|
|
dev = WAN_DEVLE2DEV(WAN_LIST_FIRST(&card->wandev.dev_head));
|
|
if (!dev || !wan_netif_priv(dev))
|
|
return;
|
|
ppp_priv_area = wan_netif_priv(dev);
|
|
|
|
if (card->wandev.ignore_front_end_status == WANOPT_YES){
|
|
return;
|
|
}
|
|
|
|
if (ppp_priv_area->ppp_state != WAN_CONNECTED){
|
|
return;
|
|
}
|
|
|
|
if (card->fe.fe_status == FE_CONNECTED){
|
|
|
|
if (ppp_priv_area->ppp_state == WAN_CONNECTED &&
|
|
card->wandev.state != WAN_CONNECTED){
|
|
|
|
wanpipe_set_state(card, WAN_CONNECTED);
|
|
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_PPP_EVENT;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
trigger_ppp_poll(dev);
|
|
}
|
|
}else{
|
|
wanpipe_set_state(card, WAN_DISCONNECTED);
|
|
|
|
ppp_priv_area->timer_int_enabled |= TMR_INT_ENABLED_PPP_EVENT;
|
|
card->hw_iface.set_bit(card->hw, card->intr_perm_off, PPP_INTR_TIMER);
|
|
if (card->u.p.ip_mode == WANOPT_PPP_PEER) {
|
|
set_bit(0,&Read_connection_info);
|
|
}
|
|
trigger_ppp_poll(dev);
|
|
|
|
/* Start debugging */
|
|
WAN_DEBUG_START(card);
|
|
}
|
|
}
|
|
|
|
/*
|
|
****************************************************************************
|
|
**
|
|
**
|
|
**
|
|
*/
|
|
static int ppp_debugging(sdla_t* card)
|
|
{
|
|
ppp_pkt_stats_t* pkt_stat = NULL;
|
|
ppp_lcp_stats_t* lcp_stat = NULL;
|
|
wan_mbox_t* mb = &card->wan_mbox;
|
|
unsigned long smp_flags;
|
|
static unsigned long last_rx_lcp = 0, last_rx_conf_nak = 0;
|
|
unsigned long rx_lcp = 0, rx_conf_nak = 0;
|
|
int err = 0;
|
|
|
|
wan_spin_lock_irq(&card->wandev.lock,&smp_flags);
|
|
if (!(err = ppp_get_pkt_stats(card))){
|
|
pkt_stat = (ppp_pkt_stats_t*)mb->wan_data;
|
|
rx_lcp = pkt_stat->rx_lcp;
|
|
}
|
|
wan_spin_unlock_irq(&card->wandev.lock,&smp_flags);
|
|
if (err)
|
|
return 0;
|
|
wan_spin_lock_irq(&card->wandev.lock,&smp_flags);
|
|
if (!(err = ppp_get_lcp_stats(card))){
|
|
lcp_stat = (ppp_lcp_stats_t*)mb->wan_data;
|
|
rx_conf_nak = lcp_stat->rx_conf_nak;
|
|
}
|
|
wan_spin_unlock_irq(&card->wandev.lock,&smp_flags);
|
|
if (err)
|
|
return 0;
|
|
if (card->wan_debugging_state == WAN_DEBUGGING_CONT){
|
|
last_rx_lcp = rx_lcp;
|
|
last_rx_conf_nak= rx_conf_nak;
|
|
card->wan_debugging_state = WAN_DEBUGGING_PROTOCOL;
|
|
return 15;
|
|
}
|
|
|
|
if (rx_lcp != last_rx_lcp){
|
|
if (rx_conf_nak != last_rx_conf_nak){
|
|
if (card->wan_debug_last_msg != WAN_DEBUG_PPP_LCP_MSG){
|
|
DEBUG_EVENT("%s: PPP NAKs received!\n",
|
|
card->devname);
|
|
DEBUG_EVENT("%s: Check remote router IP configuration!\n",
|
|
card->devname);
|
|
DEBUG_EVENT("%s: If you cannot resolve this, call you dealer.\n",
|
|
card->devname);
|
|
}
|
|
card->wan_debug_last_msg = WAN_DEBUG_PPP_LCP_MSG;
|
|
}else{
|
|
if (card->wan_debug_last_msg != WAN_DEBUG_PPP_NAK_MSG){
|
|
DEBUG_EVENT("%s: PPP negotiation problem!\n",
|
|
card->devname);
|
|
DEBUG_EVENT("%s: Check remote router or ISP.\n",
|
|
card->devname);
|
|
}
|
|
card->wan_debug_last_msg = WAN_DEBUG_PPP_NAK_MSG;
|
|
}
|
|
}else{
|
|
if (card->wan_debug_last_msg != WAN_DEBUG_PPP_NEG_MSG){
|
|
DEBUG_EVENT("%s: No replies to LCP!\n",
|
|
card->devname);
|
|
DEBUG_EVENT("%s: Check configuration of remote router.\n",
|
|
card->devname);
|
|
}
|
|
card->wan_debug_last_msg = WAN_DEBUG_PPP_NEG_MSG;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static unsigned long ppp_crc_frames(sdla_t* card)
|
|
{
|
|
wan_mbox_t* mb = &card->wan_mbox;
|
|
unsigned long smp_flags;
|
|
unsigned long rx_bad_crc = 0;
|
|
|
|
wan_spin_lock_irq(&card->wandev.lock,&smp_flags);
|
|
if (!ppp_get_err_stats(card)){
|
|
ppp_err_stats_t* stats = (ppp_err_stats_t*)mb->wan_data;
|
|
rx_bad_crc = stats->rx_bad_crc;
|
|
}
|
|
wan_spin_unlock_irq(&card->wandev.lock,&smp_flags);
|
|
return rx_bad_crc;
|
|
}
|
|
|
|
static unsigned long ppp_abort_frames(sdla_t * card)
|
|
{
|
|
wan_mbox_t* mb = &card->wan_mbox;
|
|
unsigned long smp_flags;
|
|
unsigned long rx_abort = 0;
|
|
|
|
wan_spin_lock_irq(&card->wandev.lock,&smp_flags);
|
|
if (!ppp_get_err_stats(card)){
|
|
ppp_err_stats_t* stats = (ppp_err_stats_t*)mb->wan_data;
|
|
rx_abort = stats->rx_abort;
|
|
}
|
|
wan_spin_unlock_irq(&card->wandev.lock,&smp_flags);
|
|
return rx_abort;
|
|
}
|
|
|
|
static unsigned long ppp_tx_underun_frames(sdla_t* card)
|
|
{
|
|
wan_mbox_t* mb = &card->wan_mbox;
|
|
unsigned long smp_flags;
|
|
unsigned long tx_underrun = 0;
|
|
|
|
wan_spin_lock_irq(&card->wandev.lock,&smp_flags);
|
|
if (!ppp_get_err_stats(card)){
|
|
ppp_err_stats_t* stats = (ppp_err_stats_t*)mb->wan_data;
|
|
tx_underrun = stats->tx_missed_intr;
|
|
}
|
|
wan_spin_unlock_irq(&card->wandev.lock,&smp_flags);
|
|
return tx_underrun;
|
|
}
|
|
|
|
/****** End *****************************************************************/
|