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-rw-r--r--mdk-stage1/ppp/solaris/Makedefs16
-rw-r--r--mdk-stage1/ppp/solaris/Makedefs.sol259
-rw-r--r--mdk-stage1/ppp/solaris/Makefile.sol266
-rw-r--r--mdk-stage1/ppp/solaris/Makefile.sol2-6485
-rw-r--r--mdk-stage1/ppp/solaris/Makefile.top50
-rw-r--r--mdk-stage1/ppp/solaris/ppp.c2486
-rw-r--r--mdk-stage1/ppp/solaris/ppp.conf1
-rw-r--r--mdk-stage1/ppp/solaris/ppp_ahdlc.c878
-rw-r--r--mdk-stage1/ppp/solaris/ppp_ahdlc_mod.c49
-rw-r--r--mdk-stage1/ppp/solaris/ppp_comp.c1126
-rw-r--r--mdk-stage1/ppp/solaris/ppp_comp_mod.c81
-rw-r--r--mdk-stage1/ppp/solaris/ppp_mod.c174
-rw-r--r--mdk-stage1/ppp/solaris/ppp_mod.h190
13 files changed, 5261 insertions, 0 deletions
diff --git a/mdk-stage1/ppp/solaris/Makedefs b/mdk-stage1/ppp/solaris/Makedefs
new file mode 100644
index 000000000..81db8ab2e
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/Makedefs
@@ -0,0 +1,16 @@
+#
+# defines common to several Makefiles
+#
+
+INSTALL= /usr/sbin/install
+
+BINDIR = /usr/local/bin
+MANDIR = /usr/local/man
+ETCDIR = /etc/ppp
+
+COPTS = -O -Xa
+
+# For compiling with gcc, comment out the COPTS definition above and
+# uncomment the next 2 definitions.
+#CC = gcc
+#COPTS = -O2
diff --git a/mdk-stage1/ppp/solaris/Makedefs.sol2 b/mdk-stage1/ppp/solaris/Makedefs.sol2
new file mode 100644
index 000000000..1282c6e74
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/Makedefs.sol2
@@ -0,0 +1,59 @@
+#
+# Generic make definitions for Solaris 2
+#
+# $Id$
+#
+
+include ../solaris/Makedefs
+
+CPPFLAGS = -D_KERNEL -DSVR4 -DSOL2 -DPRIOQ -DDEBUG -I../include
+CFLAGS = $(CPPFLAGS) $(COPTS)
+
+# lint-specific variables
+LINT = lint
+LINT_OPT_32 =
+LINT_OPT_64 = -Xarch=v9 -errchk=longptr64
+
+LINT_32 =
+LINT_32 += -erroff=E_BAD_PTR_CAST_ALIGN
+LINT_32 += -erroff=E_SUPPRESSION_DIRECTIVE_UNUSED
+LINT_32 += -erroff=E_SUSPICIOUS_COMPARISON
+LINT_32 += -erroff=E_CAST_UINT_TO_SIGNED_INT
+LINT_32 += -erroff=E_PASS_UINT_TO_SIGNED_INT
+LINT_32 += -erroff=E_INVALID_ANNOTATION_NAME
+LINT_32 += -erroff=E_FUNC_ARG_UNUSED
+# This might be needed, but zlib.c and vjcompress.c will squawk
+# when not ignored
+LINT_32 += -erroff=E_CASE_FALLTHRU
+LINT_32 += -erroff=E_RET_INT_IMPLICITLY
+LINT_32 += -erroff=E_FUNC_NO_RET_VAL
+# Some STREAMS macros will be noisy too when this isn't ignored
+LINT_32 += -erroff=E_CONSTANT_CONDITION
+LINT_32 += -erroff=E_CONST_EXPR
+
+# Extra noise suppressant for 64-bit
+EXTRA_OFF =
+EXTRA_OFF += -erroff=E_CAST_INT_TO_SMALL_INT
+EXTRA_OFF += -erroff=E_CAST_INT_CONST_TO_SMALL_INT
+EXTRA_OFF += -erroff=E_CAST_TO_PTR_FROM_INT
+EXTRA_OFF += -erroff=E_ASSIGN_INT_TO_SMALL_INT
+EXTRA_OFF += -erroff=E_ASSIGN_INT_FROM_BIG_CONST
+EXTRA_OFF += -erroff=E_CONST_PROMOTED_UNSIGNED_LL
+EXTRA_OFF += -erroff=E_CONST_PROMOTED_LONG_LONG
+EXTRA_OFF += -erroff=E_CONST_TRUNCATED_BY_ASSIGN
+EXTRA_OFF += -erroff=E_PASS_INT_FROM_BIG_CONST
+EXTRA_OFF += -erroff=E_COMP_INT_WITH_LARGE_INT
+EXTRA_OFF += -erroff=E_ASSIGN_UINT_TO_SIGNED_INT
+EXTRA_OFF += -erroff=E_ASSIGN_NARROW_CONV
+EXTRA_OFF += -erroff=E_PASS_INT_TO_SMALL_INT
+EXTRA_OFF += -erroff=E_PTR_CONV_LOSES_BITS
+
+LINT_64 = $(LINT_32)
+LINT_64 += $(EXTRA_OFF)
+
+LINTFLAGS64 = -Xa -nsxmuF -errtags=yes $(LINT_OPT_64) $(LINT_64)
+LINT64 = $(LINT) -c $(LINTFLAGS64) $(CPPFLAGS)
+
+LINTFLAGS32 = -Xa -nsxmuF -errtags=yes $(LINT_OPT_32) $(LINT_32)
+LINT32 = $(LINT) -c $(LINTFLAGS32) $(CPPFLAGS)
+
diff --git a/mdk-stage1/ppp/solaris/Makefile.sol2 b/mdk-stage1/ppp/solaris/Makefile.sol2
new file mode 100644
index 000000000..78628847b
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/Makefile.sol2
@@ -0,0 +1,66 @@
+#
+# Makefile for STREAMS modules for Solaris 2.
+#
+# $Id$
+#
+
+include Makedefs.sol2
+
+COPTS += -xO2 -xspace -W0,-Lt
+
+COMP_OBJS = ppp_comp.o bsd-comp.o deflate.o zlib.o vjcompress.o \
+ ppp_comp_mod.o
+
+all: ppp ppp_ahdl ppp_comp
+
+ppp: ppp.o ppp_mod.o
+ ld -r -o $@ ppp.o ppp_mod.o
+ chmod +x $@
+
+ppp_ahdl: ppp_ahdlc.o ppp_ahdlc_mod.o
+ ld -r -o $@ ppp_ahdlc.o ppp_ahdlc_mod.o
+ chmod +x $@
+
+ppp_comp: $(COMP_OBJS)
+ ld -r -o $@ $(COMP_OBJS)
+ chmod +x $@
+
+bsd-comp.o: ../modules/bsd-comp.c
+ $(CC) $(CFLAGS) -c $?
+deflate.o: ../modules/deflate.c
+ $(CC) $(CFLAGS) -c $?
+ppp.o: ppp.c
+ $(CC) $(CFLAGS) -c $?
+ppp_mod.o: ppp_mod.c
+ $(CC) $(CFLAGS) -c $?
+ppp_ahdlc_mod.o: ppp_ahdlc_mod.c
+ $(CC) $(CFLAGS) -c $?
+ppp_ahdlc.o: ppp_ahdlc.c
+ $(CC) $(CFLAGS) -c $?
+ppp_comp.o: ppp_comp.c
+ $(CC) $(CFLAGS) -c $?
+ppp_comp_mod.o: ppp_comp_mod.c
+ $(CC) $(CFLAGS) -c $?
+vjcompress.o: ../modules/vjcompress.c
+ $(CC) $(CFLAGS) -c $?
+zlib.o: ../common/zlib.c
+ $(CC) $(CFLAGS) -c $?
+
+install:
+ cp ppp ppp.conf /kernel/drv
+ cp ppp_comp ppp_ahdl /kernel/strmod
+ if grep clone:ppp /etc/minor_perm; then :; else \
+ echo clone:ppp 0644 root sys >>/etc/minor_perm; fi
+ /usr/sbin/rem_drv ppp 2>/dev/null || true
+ /usr/sbin/add_drv ppp
+
+SRCS = ppp.c ppp_mod.c ppp_ahdlc.c ppp_ahdlc_mod.c \
+ ppp_comp.c ../modules/bsd-comp.c ../modules/deflate.c \
+ ../common/zlib.c ../modules/vjcompress.c ppp_comp_mod.c
+
+lint:
+ $(LINT32) $(SRCS)
+
+clean:
+ rm -f ppp ppp_comp ppp_ahdl *.o *~ core
+ rm -f *.ln
diff --git a/mdk-stage1/ppp/solaris/Makefile.sol2-64 b/mdk-stage1/ppp/solaris/Makefile.sol2-64
new file mode 100644
index 000000000..63e75fc54
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/Makefile.sol2-64
@@ -0,0 +1,85 @@
+#
+# Makefile for 64-bit STREAMS modules for Solaris 2.
+#
+# $Id$
+#
+
+include Makedefs.sol2
+
+# Sun's cc flag for LP64 compilation / linkage
+COPTS += -xchip=ultra -xarch=v9 -Wc,-xcode=abs32 -Wc,-Qiselect-regsym=0 -xO3 -xspace -W0,-Lt
+
+# subdirectory where 64-bit objects / binaries will be placed
+LP64DIR = sparcv9
+
+# Name of legacy Makefile (for 32-bit binaries)
+STD_MAKE = Makefile.sol2
+
+COMP_OBJS = $(LP64DIR)/ppp_comp.o $(LP64DIR)/bsd-comp.o \
+ $(LP64DIR)/deflate.o $(LP64DIR)/zlib.o $(LP64DIR)/vjcompress.o \
+ $(LP64DIR)/ppp_comp_mod.o
+
+all: std_objs $(LP64DIR) ppp ppp_ahdl ppp_comp
+
+std_objs:
+ $(MAKE) -f $(STD_MAKE) all
+
+ppp: $(LP64DIR)/ppp.o $(LP64DIR)/ppp_mod.o
+ ld -r -o $(LP64DIR)/$@ $(LP64DIR)/ppp.o $(LP64DIR)/ppp_mod.o
+ chmod +x $(LP64DIR)/$@
+
+ppp_ahdl: $(LP64DIR)/ppp_ahdlc.o $(LP64DIR)/ppp_ahdlc_mod.o
+ ld -r -o $(LP64DIR)/$@ $(LP64DIR)/ppp_ahdlc.o $(LP64DIR)/ppp_ahdlc_mod.o
+ chmod +x $(LP64DIR)/$@
+
+ppp_comp: $(COMP_OBJS)
+ ld -r -o $(LP64DIR)/$@ $(COMP_OBJS)
+ chmod +x $(LP64DIR)/$@
+
+$(LP64DIR)/bsd-comp.o: ../modules/bsd-comp.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/deflate.o: ../modules/deflate.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/ppp.o: ppp.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/ppp_mod.o: ppp_mod.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/ppp_ahdlc_mod.o: ppp_ahdlc_mod.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/ppp_ahdlc.o: ppp_ahdlc.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/ppp_comp.o: ppp_comp.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/ppp_comp_mod.o: ppp_comp_mod.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/vjcompress.o: ../modules/vjcompress.c
+ $(CC) $(CFLAGS) -c $? -o $@
+$(LP64DIR)/zlib.o: ../common/zlib.c
+ $(CC) $(CFLAGS) -c $? -o $@
+
+$(LP64DIR):
+ mkdir -m 755 -p $@
+
+install:
+ cp ppp ppp.conf /kernel/drv
+ cp ppp_comp ppp_ahdl /kernel/strmod
+ cp $(LP64DIR)/ppp /kernel/drv/$(LP64DIR)
+ cp $(LP64DIR)/ppp_comp $(LP64DIR)/ppp_ahdl /kernel/strmod/$(LP64DIR)
+ if grep clone:ppp /etc/minor_perm; then :; else \
+ echo clone:ppp 0644 root sys >>/etc/minor_perm; fi
+ /usr/sbin/rem_drv ppp 2>/dev/null || true
+ /usr/sbin/add_drv ppp
+
+SRCS = ppp.c ppp_mod.c ppp_ahdlc.c ppp_ahdlc_mod.c \
+ ppp_comp.c ../modules/bsd-comp.c ../modules/deflate.c \
+ ../common/zlib.c ../modules/vjcompress.c ppp_comp_mod.c
+
+lint:
+ $(LINT64) $(SRCS)
+
+lint-32:
+ $(LINT32) $(SRCS)
+
+clean:
+ $(MAKE) -f $(STD_MAKE) clean
+ rm -f $(LP64DIR)/ppp $(LP64DIR)/ppp_comp $(LP64DIR)/ppp_ahdl $(LP64DIR)/*.o $(LP64DIR)/*~ $(LP64DIR)/core
diff --git a/mdk-stage1/ppp/solaris/Makefile.top b/mdk-stage1/ppp/solaris/Makefile.top
new file mode 100644
index 000000000..f1200b852
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/Makefile.top
@@ -0,0 +1,50 @@
+#
+# ppp top level makefile for SVR4 and Solaris 2
+#
+# $Id$
+#
+
+include solaris/Makedefs
+
+all:
+ cd chat; $(MAKE) all
+ cd pppd; $(MAKE) all
+ cd pppstats; $(MAKE) all
+ cd pppdump; $(MAKE) all
+ cd solaris; $(MAKE) all
+
+install: $(BINDIR) $(MANDIR)/man8 install-progs install-etcppp
+
+install-progs:
+ cd chat; $(MAKE) install
+ cd pppd; $(MAKE) install
+ cd pppstats; $(MAKE) install
+ cd pppdump; $(MAKE) install
+ cd solaris; $(MAKE) install
+
+install-etcppp: $(ETCDIR) $(ETCDIR)/options $(ETCDIR)/pap-secrets \
+ $(ETCDIR)/chap-secrets
+
+$(ETCDIR)/options:
+ cp etc.ppp/options $@
+ chmod go-w $@
+$(ETCDIR)/pap-secrets:
+ $(INSTALL) -f $(ETCDIR) -m 600 etc.ppp/pap-secrets
+$(ETCDIR)/chap-secrets:
+ $(INSTALL) -f $(ETCDIR) -m 600 etc.ppp/chap-secrets
+
+$(BINDIR):
+ mkdir -m 755 -p $@
+$(MANDIR)/man8:
+ mkdir -m 755 -p $@
+$(ETCDIR):
+ mkdir -m 755 -p $@
+
+clean:
+ rm -f *~
+ cd chat; $(MAKE) clean
+ cd pppd; $(MAKE) clean
+ cd pppstats; $(MAKE) clean
+ cd pppdump; $(MAKE) clean
+ cd solaris; $(MAKE) clean
+
diff --git a/mdk-stage1/ppp/solaris/ppp.c b/mdk-stage1/ppp/solaris/ppp.c
new file mode 100644
index 000000000..44bf08dff
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp.c
@@ -0,0 +1,2486 @@
+/*
+ * ppp.c - STREAMS multiplexing pseudo-device driver for PPP.
+ *
+ * Copyright (c) 1994 The Australian National University.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, provided that the above copyright
+ * notice appears in all copies. This software is provided without any
+ * warranty, express or implied. The Australian National University
+ * makes no representations about the suitability of this software for
+ * any purpose.
+ *
+ * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
+ * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * THE AUSTRALIAN NATIONAL UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
+ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
+ * OR MODIFICATIONS.
+ *
+ * $Id$
+ */
+
+/*
+ * This file is used under Solaris 2, SVR4, SunOS 4, and Digital UNIX.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/stream.h>
+#include <sys/stropts.h>
+#include <sys/errno.h>
+#ifdef __osf__
+#include <sys/ioctl.h>
+#include <sys/cmn_err.h>
+#define queclass(mp) ((mp)->b_band & QPCTL)
+#else
+#include <sys/ioccom.h>
+#endif
+#include <sys/time.h>
+#ifdef SVR4
+#include <sys/cmn_err.h>
+#include <sys/conf.h>
+#include <sys/dlpi.h>
+#include <sys/ddi.h>
+#ifdef SOL2
+#include <sys/ksynch.h>
+#include <sys/kstat.h>
+#include <sys/sunddi.h>
+#include <sys/ethernet.h>
+#else
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#endif /* SOL2 */
+#else /* not SVR4 */
+#include <sys/user.h>
+#endif /* SVR4 */
+#include <net/ppp_defs.h>
+#include <net/pppio.h>
+#include "ppp_mod.h"
+
+/*
+ * Modifications marked with #ifdef PRIOQ are for priority queueing of
+ * interactive traffic, and are due to Marko Zec <zec@japa.tel.fer.hr>.
+ */
+#ifdef PRIOQ
+#endif /* PRIOQ */
+
+#include <netinet/in.h> /* leave this outside of PRIOQ for htons */
+
+#ifdef __STDC__
+#define __P(x) x
+#else
+#define __P(x) ()
+#endif
+
+/*
+ * The IP module may use this SAP value for IP packets.
+ */
+#ifndef ETHERTYPE_IP
+#define ETHERTYPE_IP 0x800
+#endif
+
+#if !defined(ETHERTYPE_IPV6)
+#define ETHERTYPE_IPV6 0x86dd
+#endif /* !defined(ETHERTYPE_IPV6) */
+
+#if !defined(ETHERTYPE_ALLSAP) && defined(SOL2)
+#define ETHERTYPE_ALLSAP 0
+#endif /* !defined(ETHERTYPE_ALLSAP) && defined(SOL2) */
+
+#if !defined(PPP_ALLSAP) && defined(SOL2)
+#define PPP_ALLSAP PPP_ALLSTATIONS
+#endif /* !defined(PPP_ALLSAP) && defined(SOL2) */
+
+extern time_t time;
+
+#ifdef SOL2
+/*
+ * We use this reader-writer lock to ensure that the lower streams
+ * stay connected to the upper streams while the lower-side put and
+ * service procedures are running. Essentially it is an existence
+ * lock for the upper stream associated with each lower stream.
+ */
+krwlock_t ppp_lower_lock;
+#define LOCK_LOWER_W rw_enter(&ppp_lower_lock, RW_WRITER)
+#define LOCK_LOWER_R rw_enter(&ppp_lower_lock, RW_READER)
+#define TRYLOCK_LOWER_R rw_tryenter(&ppp_lower_lock, RW_READER)
+#define UNLOCK_LOWER rw_exit(&ppp_lower_lock)
+
+#define MT_ENTER(x) mutex_enter(x)
+#define MT_EXIT(x) mutex_exit(x)
+
+/*
+ * Notes on multithreaded implementation for Solaris 2:
+ *
+ * We use an inner perimeter around each queue pair and an outer
+ * perimeter around the whole driver. The inner perimeter is
+ * entered exclusively for all entry points (open, close, put,
+ * service). The outer perimeter is entered exclusively for open
+ * and close and shared for put and service. This is all done for
+ * us by the streams framework.
+ *
+ * I used to think that the perimeters were entered for the lower
+ * streams' put and service routines as well as for the upper streams'.
+ * Because of problems experienced by people, and after reading the
+ * documentation more closely, I now don't think that is true. So we
+ * now use ppp_lower_lock to give us an existence guarantee on the
+ * upper stream controlling each lower stream.
+ *
+ * Shared entry to the outer perimeter protects the existence of all
+ * the upper streams and their upperstr_t structures, and guarantees
+ * that the following fields of any upperstr_t won't change:
+ * nextmn, next, nextppa. It guarantees that the lowerq field of an
+ * upperstr_t won't go from non-zero to zero, that the global `ppas'
+ * won't change and that the no lower stream will get unlinked.
+ *
+ * Shared (reader) access to ppa_lower_lock guarantees that no lower
+ * stream will be unlinked and that the lowerq field of all upperstr_t
+ * structures won't change.
+ */
+
+#else /* SOL2 */
+#define LOCK_LOWER_W 0
+#define LOCK_LOWER_R 0
+#define TRYLOCK_LOWER_R 1
+#define UNLOCK_LOWER 0
+#define MT_ENTER(x) 0
+#define MT_EXIT(x) 0
+
+#endif /* SOL2 */
+
+/*
+ * Private information; one per upper stream.
+ */
+typedef struct upperstr {
+ minor_t mn; /* minor device number */
+ struct upperstr *nextmn; /* next minor device */
+ queue_t *q; /* read q associated with this upper stream */
+ int flags; /* flag bits, see below */
+ int state; /* current DLPI state */
+ int sap; /* service access point */
+ int req_sap; /* which SAP the DLPI client requested */
+ struct upperstr *ppa; /* control stream for our ppa */
+ struct upperstr *next; /* next stream for this ppa */
+ uint ioc_id; /* last ioctl ID for this stream */
+ enum NPmode npmode; /* what to do with packets on this SAP */
+ unsigned char rblocked; /* flow control has blocked upper read strm */
+ /* N.B. rblocked is only changed by control stream's put/srv procs */
+ /*
+ * There is exactly one control stream for each PPA.
+ * The following fields are only used for control streams.
+ */
+ int ppa_id;
+ queue_t *lowerq; /* write queue attached below this PPA */
+ struct upperstr *nextppa; /* next control stream */
+ int mru;
+ int mtu;
+ struct pppstat stats; /* statistics */
+ time_t last_sent; /* time last NP packet sent */
+ time_t last_recv; /* time last NP packet rcvd */
+#ifdef SOL2
+ kmutex_t stats_lock; /* lock for stats updates */
+ kstat_t *kstats; /* stats for netstat */
+#endif /* SOL2 */
+#ifdef LACHTCP
+ int ifflags;
+ char ifname[IFNAMSIZ];
+ struct ifstats ifstats;
+#endif /* LACHTCP */
+} upperstr_t;
+
+/* Values for flags */
+#define US_PRIV 1 /* stream was opened by superuser */
+#define US_CONTROL 2 /* stream is a control stream */
+#define US_BLOCKED 4 /* flow ctrl has blocked lower write stream */
+#define US_LASTMOD 8 /* no PPP modules below us */
+#define US_DBGLOG 0x10 /* log various occurrences */
+#define US_RBLOCKED 0x20 /* flow ctrl has blocked upper read stream */
+
+#if defined(SOL2)
+#if DL_CURRENT_VERSION >= 2
+#define US_PROMISC 0x40 /* stream is promiscuous */
+#endif /* DL_CURRENT_VERSION >= 2 */
+#define US_RAWDATA 0x80 /* raw M_DATA, no DLPI header */
+#endif /* defined(SOL2) */
+
+#ifdef PRIOQ
+static u_char max_band=0;
+static u_char def_band=0;
+
+#define IPPORT_DEFAULT 65535
+
+/*
+ * Port priority table
+ * Highest priority ports are listed first, lowest are listed last.
+ * ICMP & packets using unlisted ports will be treated as "default".
+ * If IPPORT_DEFAULT is not listed here, "default" packets will be
+ * assigned lowest priority.
+ * Each line should be terminated with "0".
+ * Line containing only "0" marks the end of the list.
+ */
+
+static u_short prioq_table[]= {
+ 113, 53, 0,
+ 22, 23, 513, 517, 518, 0,
+ 514, 21, 79, 111, 0,
+ 25, 109, 110, 0,
+ IPPORT_DEFAULT, 0,
+ 20, 70, 80, 8001, 8008, 8080, 0, /* 8001,8008,8080 - common proxy ports */
+0 };
+
+#endif /* PRIOQ */
+
+
+static upperstr_t *minor_devs = NULL;
+static upperstr_t *ppas = NULL;
+
+#ifdef SVR4
+static int pppopen __P((queue_t *, dev_t *, int, int, cred_t *));
+static int pppclose __P((queue_t *, int, cred_t *));
+#else
+static int pppopen __P((queue_t *, int, int, int));
+static int pppclose __P((queue_t *, int));
+#endif /* SVR4 */
+static int pppurput __P((queue_t *, mblk_t *));
+static int pppuwput __P((queue_t *, mblk_t *));
+static int pppursrv __P((queue_t *));
+static int pppuwsrv __P((queue_t *));
+static int ppplrput __P((queue_t *, mblk_t *));
+static int ppplwput __P((queue_t *, mblk_t *));
+static int ppplrsrv __P((queue_t *));
+static int ppplwsrv __P((queue_t *));
+#ifndef NO_DLPI
+static void dlpi_request __P((queue_t *, mblk_t *, upperstr_t *));
+static void dlpi_error __P((queue_t *, upperstr_t *, int, int, int));
+static void dlpi_ok __P((queue_t *, int));
+#endif
+static int send_data __P((mblk_t *, upperstr_t *));
+static void new_ppa __P((queue_t *, mblk_t *));
+static void attach_ppa __P((queue_t *, mblk_t *));
+static void detach_ppa __P((queue_t *, mblk_t *));
+static void detach_lower __P((queue_t *, mblk_t *));
+static void debug_dump __P((queue_t *, mblk_t *));
+static upperstr_t *find_dest __P((upperstr_t *, int));
+#if defined(SOL2)
+static upperstr_t *find_promisc __P((upperstr_t *, int));
+static mblk_t *prepend_ether __P((upperstr_t *, mblk_t *, int));
+static mblk_t *prepend_udind __P((upperstr_t *, mblk_t *, int));
+static void promisc_sendup __P((upperstr_t *, mblk_t *, int, int));
+#endif /* defined(SOL2) */
+static int putctl2 __P((queue_t *, int, int, int));
+static int putctl4 __P((queue_t *, int, int, int));
+static int pass_packet __P((upperstr_t *ppa, mblk_t *mp, int outbound));
+#ifdef FILTER_PACKETS
+static int ip_hard_filter __P((upperstr_t *ppa, mblk_t *mp, int outbound));
+#endif /* FILTER_PACKETS */
+
+#define PPP_ID 0xb1a6
+static struct module_info ppp_info = {
+#ifdef PRIOQ
+ PPP_ID, "ppp", 0, 512, 512, 384
+#else
+ PPP_ID, "ppp", 0, 512, 512, 128
+#endif /* PRIOQ */
+};
+
+static struct qinit pppurint = {
+ pppurput, pppursrv, pppopen, pppclose, NULL, &ppp_info, NULL
+};
+
+static struct qinit pppuwint = {
+ pppuwput, pppuwsrv, NULL, NULL, NULL, &ppp_info, NULL
+};
+
+static struct qinit ppplrint = {
+ ppplrput, ppplrsrv, NULL, NULL, NULL, &ppp_info, NULL
+};
+
+static struct qinit ppplwint = {
+ ppplwput, ppplwsrv, NULL, NULL, NULL, &ppp_info, NULL
+};
+
+#ifdef LACHTCP
+extern struct ifstats *ifstats;
+int pppdevflag = 0;
+#endif
+
+struct streamtab pppinfo = {
+ &pppurint, &pppuwint,
+ &ppplrint, &ppplwint
+};
+
+int ppp_count;
+
+/*
+ * How we maintain statistics.
+ */
+#ifdef SOL2
+#define INCR_IPACKETS(ppa) \
+ if (ppa->kstats != 0) { \
+ KSTAT_NAMED_PTR(ppa->kstats)[0].value.ul++; \
+ }
+#define INCR_IERRORS(ppa) \
+ if (ppa->kstats != 0) { \
+ KSTAT_NAMED_PTR(ppa->kstats)[1].value.ul++; \
+ }
+#define INCR_OPACKETS(ppa) \
+ if (ppa->kstats != 0) { \
+ KSTAT_NAMED_PTR(ppa->kstats)[2].value.ul++; \
+ }
+#define INCR_OERRORS(ppa) \
+ if (ppa->kstats != 0) { \
+ KSTAT_NAMED_PTR(ppa->kstats)[3].value.ul++; \
+ }
+#endif
+
+#ifdef LACHTCP
+#define INCR_IPACKETS(ppa) ppa->ifstats.ifs_ipackets++;
+#define INCR_IERRORS(ppa) ppa->ifstats.ifs_ierrors++;
+#define INCR_OPACKETS(ppa) ppa->ifstats.ifs_opackets++;
+#define INCR_OERRORS(ppa) ppa->ifstats.ifs_oerrors++;
+#endif
+
+/*
+ * STREAMS driver entry points.
+ */
+static int
+#ifdef SVR4
+pppopen(q, devp, oflag, sflag, credp)
+ queue_t *q;
+ dev_t *devp;
+ int oflag, sflag;
+ cred_t *credp;
+#else
+pppopen(q, dev, oflag, sflag)
+ queue_t *q;
+ int dev; /* really dev_t */
+ int oflag, sflag;
+#endif
+{
+ upperstr_t *up;
+ upperstr_t **prevp;
+ minor_t mn;
+#ifdef PRIOQ
+ u_short *ptr;
+ u_char new_band;
+#endif /* PRIOQ */
+
+ if (q->q_ptr)
+ DRV_OPEN_OK(dev); /* device is already open */
+
+#ifdef PRIOQ
+ /* Calculate max_bband & def_band from definitions in prioq.h
+ This colud be done at some more approtiate time (less often)
+ but this way it works well so I'll just leave it here */
+
+ max_band = 1;
+ def_band = 0;
+ ptr = prioq_table;
+ while (*ptr) {
+ new_band = 1;
+ while (*ptr)
+ if (*ptr++ == IPPORT_DEFAULT) {
+ new_band = 0;
+ def_band = max_band;
+ }
+ max_band += new_band;
+ ptr++;
+ }
+ if (def_band)
+ def_band = max_band - def_band;
+ --max_band;
+#endif /* PRIOQ */
+
+ if (sflag == CLONEOPEN) {
+ mn = 0;
+ for (prevp = &minor_devs; (up = *prevp) != 0; prevp = &up->nextmn) {
+ if (up->mn != mn)
+ break;
+ ++mn;
+ }
+ } else {
+#ifdef SVR4
+ mn = getminor(*devp);
+#else
+ mn = minor(dev);
+#endif
+ for (prevp = &minor_devs; (up = *prevp) != 0; prevp = &up->nextmn) {
+ if (up->mn >= mn)
+ break;
+ }
+ if (up->mn == mn) {
+ /* this can't happen */
+ q->q_ptr = WR(q)->q_ptr = (caddr_t) up;
+ DRV_OPEN_OK(dev);
+ }
+ }
+
+ /*
+ * Construct a new minor node.
+ */
+ up = (upperstr_t *) ALLOC_SLEEP(sizeof(upperstr_t));
+ bzero((caddr_t) up, sizeof(upperstr_t));
+ if (up == 0) {
+ DPRINT("pppopen: out of kernel memory\n");
+ OPEN_ERROR(ENXIO);
+ }
+ up->nextmn = *prevp;
+ *prevp = up;
+ up->mn = mn;
+#ifdef SVR4
+ *devp = makedevice(getmajor(*devp), mn);
+#endif
+ up->q = q;
+ if (NOTSUSER() == 0)
+ up->flags |= US_PRIV;
+#ifndef NO_DLPI
+ up->state = DL_UNATTACHED;
+#endif
+#ifdef LACHTCP
+ up->ifflags = IFF_UP | IFF_POINTOPOINT;
+#endif
+ up->sap = -1;
+ up->last_sent = up->last_recv = time;
+ up->npmode = NPMODE_DROP;
+ q->q_ptr = (caddr_t) up;
+ WR(q)->q_ptr = (caddr_t) up;
+ noenable(WR(q));
+#ifdef SOL2
+ mutex_init(&up->stats_lock, NULL, MUTEX_DRIVER, NULL);
+#endif
+ ++ppp_count;
+
+ qprocson(q);
+ DRV_OPEN_OK(makedev(major(dev), mn));
+}
+
+static int
+#ifdef SVR4
+pppclose(q, flag, credp)
+ queue_t *q;
+ int flag;
+ cred_t *credp;
+#else
+pppclose(q, flag)
+ queue_t *q;
+ int flag;
+#endif
+{
+ upperstr_t *up, **upp;
+ upperstr_t *as, *asnext;
+ upperstr_t **prevp;
+
+ qprocsoff(q);
+
+ up = (upperstr_t *) q->q_ptr;
+ if (up == 0) {
+ DPRINT("pppclose: q_ptr = 0\n");
+ return 0;
+ }
+ if (up->flags & US_DBGLOG)
+ DPRINT2("ppp/%d: close, flags=%x\n", up->mn, up->flags);
+ if (up->flags & US_CONTROL) {
+#ifdef LACHTCP
+ struct ifstats *ifp, *pifp;
+#endif
+ if (up->lowerq != 0) {
+ /* Gack! the lower stream should have be unlinked earlier! */
+ DPRINT1("ppp%d: lower stream still connected on close?\n",
+ up->mn);
+ LOCK_LOWER_W;
+ up->lowerq->q_ptr = 0;
+ RD(up->lowerq)->q_ptr = 0;
+ up->lowerq = 0;
+ UNLOCK_LOWER;
+ }
+
+ /*
+ * This stream represents a PPA:
+ * For all streams attached to the PPA, clear their
+ * references to this PPA.
+ * Then remove this PPA from the list of PPAs.
+ */
+ for (as = up->next; as != 0; as = asnext) {
+ asnext = as->next;
+ as->next = 0;
+ as->ppa = 0;
+ if (as->flags & US_BLOCKED) {
+ as->flags &= ~US_BLOCKED;
+ flushq(WR(as->q), FLUSHDATA);
+ }
+ }
+ for (upp = &ppas; *upp != 0; upp = &(*upp)->nextppa)
+ if (*upp == up) {
+ *upp = up->nextppa;
+ break;
+ }
+#ifdef LACHTCP
+ /* Remove the statistics from the active list. */
+ for (ifp = ifstats, pifp = 0; ifp; ifp = ifp->ifs_next) {
+ if (ifp == &up->ifstats) {
+ if (pifp)
+ pifp->ifs_next = ifp->ifs_next;
+ else
+ ifstats = ifp->ifs_next;
+ break;
+ }
+ pifp = ifp;
+ }
+#endif
+ } else {
+ /*
+ * If this stream is attached to a PPA,
+ * remove it from the PPA's list.
+ */
+ if ((as = up->ppa) != 0) {
+ for (; as->next != 0; as = as->next)
+ if (as->next == up) {
+ as->next = up->next;
+ break;
+ }
+ }
+ }
+
+#ifdef SOL2
+ if (up->kstats)
+ kstat_delete(up->kstats);
+ mutex_destroy(&up->stats_lock);
+#endif
+
+ q->q_ptr = NULL;
+ WR(q)->q_ptr = NULL;
+
+ for (prevp = &minor_devs; *prevp != 0; prevp = &(*prevp)->nextmn) {
+ if (*prevp == up) {
+ *prevp = up->nextmn;
+ break;
+ }
+ }
+ FREE(up, sizeof(upperstr_t));
+ --ppp_count;
+
+ return 0;
+}
+
+/*
+ * A message from on high. We do one of three things:
+ * - qreply()
+ * - put the message on the lower write stream
+ * - queue it for our service routine
+ */
+static int
+pppuwput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *us, *ppa, *nps;
+ struct iocblk *iop;
+ struct linkblk *lb;
+#ifdef LACHTCP
+ struct ifreq *ifr;
+ int i;
+#endif
+ queue_t *lq;
+ int error, n, sap;
+ mblk_t *mq;
+ struct ppp_idle *pip;
+#ifdef PRIOQ
+ queue_t *tlq;
+#endif /* PRIOQ */
+#ifdef NO_DLPI
+ upperstr_t *os;
+#endif
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("pppuwput: q_ptr = 0!\n");
+ return 0;
+ }
+ if (mp == 0) {
+ DPRINT1("pppuwput/%d: mp = 0!\n", us->mn);
+ return 0;
+ }
+ if (mp->b_datap == 0) {
+ DPRINT1("pppuwput/%d: mp->b_datap = 0!\n", us->mn);
+ return 0;
+ }
+ switch (mp->b_datap->db_type) {
+#ifndef NO_DLPI
+ case M_PCPROTO:
+ case M_PROTO:
+ dlpi_request(q, mp, us);
+ break;
+#endif /* NO_DLPI */
+
+ case M_DATA:
+ if (us->flags & US_DBGLOG)
+ DPRINT3("ppp/%d: uwput M_DATA len=%d flags=%x\n",
+ us->mn, msgdsize(mp), us->flags);
+ if (us->ppa == 0 || msgdsize(mp) > us->ppa->mtu + PPP_HDRLEN
+#ifndef NO_DLPI
+ || (us->flags & US_CONTROL) == 0
+#endif /* NO_DLPI */
+ ) {
+ DPRINT1("pppuwput: junk data len=%d\n", msgdsize(mp));
+ freemsg(mp);
+ break;
+ }
+#ifdef NO_DLPI
+ if ((us->flags & US_CONTROL) == 0 && !pass_packet(us, mp, 1))
+ break;
+#endif
+ if (!send_data(mp, us))
+ putq(q, mp);
+ break;
+
+ case M_IOCTL:
+ iop = (struct iocblk *) mp->b_rptr;
+ error = EINVAL;
+ if (us->flags & US_DBGLOG)
+ DPRINT3("ppp/%d: ioctl %x count=%d\n",
+ us->mn, iop->ioc_cmd, iop->ioc_count);
+ switch (iop->ioc_cmd) {
+#if defined(SOL2)
+ case DLIOCRAW: /* raw M_DATA mode */
+ us->flags |= US_RAWDATA;
+ error = 0;
+ break;
+#endif /* defined(SOL2) */
+ case I_LINK:
+ if ((us->flags & US_CONTROL) == 0 || us->lowerq != 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl I_LINK b_cont = 0!\n", us->mn);
+ break;
+ }
+ lb = (struct linkblk *) mp->b_cont->b_rptr;
+ lq = lb->l_qbot;
+ if (lq == 0) {
+ DPRINT1("pppuwput/%d: ioctl I_LINK l_qbot = 0!\n", us->mn);
+ break;
+ }
+ LOCK_LOWER_W;
+ us->lowerq = lq;
+ lq->q_ptr = (caddr_t) q;
+ RD(lq)->q_ptr = (caddr_t) us->q;
+ UNLOCK_LOWER;
+ iop->ioc_count = 0;
+ error = 0;
+ us->flags &= ~US_LASTMOD;
+ /* Unblock upper streams which now feed this lower stream. */
+ qenable(q);
+ /* Send useful information down to the modules which
+ are now linked below us. */
+ putctl2(lq, M_CTL, PPPCTL_UNIT, us->ppa_id);
+ putctl4(lq, M_CTL, PPPCTL_MRU, us->mru);
+ putctl4(lq, M_CTL, PPPCTL_MTU, us->mtu);
+#ifdef PRIOQ
+ /* Lower tty driver's queue hiwat/lowat from default 4096/128
+ to 256/128 since we don't want queueing of data on
+ output to physical device */
+
+ freezestr(lq);
+ for (tlq = lq; tlq->q_next != NULL; tlq = tlq->q_next)
+ ;
+ strqset(tlq, QHIWAT, 0, 256);
+ strqset(tlq, QLOWAT, 0, 128);
+ unfreezestr(lq);
+#endif /* PRIOQ */
+ break;
+
+ case I_UNLINK:
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl I_UNLINK b_cont = 0!\n", us->mn);
+ break;
+ }
+ lb = (struct linkblk *) mp->b_cont->b_rptr;
+#if DEBUG
+ if (us->lowerq != lb->l_qbot) {
+ DPRINT2("ppp unlink: lowerq=%x qbot=%x\n",
+ us->lowerq, lb->l_qbot);
+ break;
+ }
+#endif
+ iop->ioc_count = 0;
+ qwriter(q, mp, detach_lower, PERIM_OUTER);
+ error = -1;
+ break;
+
+ case PPPIO_NEWPPA:
+ if (us->flags & US_CONTROL)
+ break;
+ if ((us->flags & US_PRIV) == 0) {
+ error = EPERM;
+ break;
+ }
+ /* Arrange to return an int */
+ if ((mq = mp->b_cont) == 0
+ || mq->b_datap->db_lim - mq->b_rptr < sizeof(int)) {
+ mq = allocb(sizeof(int), BPRI_HI);
+ if (mq == 0) {
+ error = ENOSR;
+ break;
+ }
+ if (mp->b_cont != 0)
+ freemsg(mp->b_cont);
+ mp->b_cont = mq;
+ mq->b_cont = 0;
+ }
+ iop->ioc_count = sizeof(int);
+ mq->b_wptr = mq->b_rptr + sizeof(int);
+ qwriter(q, mp, new_ppa, PERIM_OUTER);
+ error = -1;
+ break;
+
+ case PPPIO_ATTACH:
+ /* like dlpi_attach, for programs which can't write to
+ the stream (like pppstats) */
+ if (iop->ioc_count != sizeof(int) || us->ppa != 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl PPPIO_ATTACH b_cont = 0!\n", us->mn);
+ break;
+ }
+ n = *(int *)mp->b_cont->b_rptr;
+ for (ppa = ppas; ppa != 0; ppa = ppa->nextppa)
+ if (ppa->ppa_id == n)
+ break;
+ if (ppa == 0)
+ break;
+ us->ppa = ppa;
+ iop->ioc_count = 0;
+ qwriter(q, mp, attach_ppa, PERIM_OUTER);
+ error = -1;
+ break;
+
+#ifdef NO_DLPI
+ case PPPIO_BIND:
+ /* Attach to a given SAP. */
+ if (iop->ioc_count != sizeof(int) || us->ppa == 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl PPPIO_BIND b_cont = 0!\n", us->mn);
+ break;
+ }
+ n = *(int *)mp->b_cont->b_rptr;
+ /* n must be a valid PPP network protocol number. */
+ if (n < 0x21 || n > 0x3fff || (n & 0x101) != 1)
+ break;
+ /* check that no other stream is bound to this sap already. */
+ for (os = us->ppa; os != 0; os = os->next)
+ if (os->sap == n)
+ break;
+ if (os != 0)
+ break;
+ us->sap = n;
+ iop->ioc_count = 0;
+ error = 0;
+ break;
+#endif /* NO_DLPI */
+
+ case PPPIO_MRU:
+ if (iop->ioc_count != sizeof(int) || (us->flags & US_CONTROL) == 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl PPPIO_MRU b_cont = 0!\n", us->mn);
+ break;
+ }
+ n = *(int *)mp->b_cont->b_rptr;
+ if (n <= 0 || n > PPP_MAXMRU)
+ break;
+ if (n < PPP_MRU)
+ n = PPP_MRU;
+ us->mru = n;
+ if (us->lowerq)
+ putctl4(us->lowerq, M_CTL, PPPCTL_MRU, n);
+ error = 0;
+ iop->ioc_count = 0;
+ break;
+
+ case PPPIO_MTU:
+ if (iop->ioc_count != sizeof(int) || (us->flags & US_CONTROL) == 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl PPPIO_MTU b_cont = 0!\n", us->mn);
+ break;
+ }
+ n = *(int *)mp->b_cont->b_rptr;
+ if (n <= 0 || n > PPP_MAXMTU)
+ break;
+ us->mtu = n;
+#ifdef LACHTCP
+ /* The MTU reported in netstat, not used as IP max packet size! */
+ us->ifstats.ifs_mtu = n;
+#endif
+ if (us->lowerq)
+ putctl4(us->lowerq, M_CTL, PPPCTL_MTU, n);
+ error = 0;
+ iop->ioc_count = 0;
+ break;
+
+ case PPPIO_LASTMOD:
+ us->flags |= US_LASTMOD;
+ error = 0;
+ break;
+
+ case PPPIO_DEBUG:
+ if (iop->ioc_count != sizeof(int))
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl PPPIO_DEBUG b_cont = 0!\n", us->mn);
+ break;
+ }
+ n = *(int *)mp->b_cont->b_rptr;
+ if (n == PPPDBG_DUMP + PPPDBG_DRIVER) {
+ qwriter(q, NULL, debug_dump, PERIM_OUTER);
+ iop->ioc_count = 0;
+ error = -1;
+ } else if (n == PPPDBG_LOG + PPPDBG_DRIVER) {
+ DPRINT1("ppp/%d: debug log enabled\n", us->mn);
+ us->flags |= US_DBGLOG;
+ iop->ioc_count = 0;
+ error = 0;
+ } else {
+ if (us->ppa == 0 || us->ppa->lowerq == 0)
+ break;
+ putnext(us->ppa->lowerq, mp);
+ error = -1;
+ }
+ break;
+
+ case PPPIO_NPMODE:
+ if (iop->ioc_count != 2 * sizeof(int))
+ break;
+ if ((us->flags & US_CONTROL) == 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("pppuwput/%d: ioctl PPPIO_NPMODE b_cont = 0!\n", us->mn);
+ break;
+ }
+ sap = ((int *)mp->b_cont->b_rptr)[0];
+ for (nps = us->next; nps != 0; nps = nps->next) {
+ if (us->flags & US_DBGLOG)
+ DPRINT2("us = 0x%x, us->next->sap = 0x%x\n", nps, nps->sap);
+ if (nps->sap == sap)
+ break;
+ }
+ if (nps == 0) {
+ if (us->flags & US_DBGLOG)
+ DPRINT2("ppp/%d: no stream for sap %x\n", us->mn, sap);
+ break;
+ }
+ /* XXX possibly should use qwriter here */
+ nps->npmode = (enum NPmode) ((int *)mp->b_cont->b_rptr)[1];
+ if (nps->npmode != NPMODE_QUEUE && (nps->flags & US_BLOCKED) != 0)
+ qenable(WR(nps->q));
+ iop->ioc_count = 0;
+ error = 0;
+ break;
+
+ case PPPIO_GIDLE:
+ if ((ppa = us->ppa) == 0)
+ break;
+ mq = allocb(sizeof(struct ppp_idle), BPRI_HI);
+ if (mq == 0) {
+ error = ENOSR;
+ break;
+ }
+ if (mp->b_cont != 0)
+ freemsg(mp->b_cont);
+ mp->b_cont = mq;
+ mq->b_cont = 0;
+ pip = (struct ppp_idle *) mq->b_wptr;
+ pip->xmit_idle = time - ppa->last_sent;
+ pip->recv_idle = time - ppa->last_recv;
+ mq->b_wptr += sizeof(struct ppp_idle);
+ iop->ioc_count = sizeof(struct ppp_idle);
+ error = 0;
+ break;
+
+#ifdef LACHTCP
+ case SIOCSIFNAME:
+ /* Sent from IP down to us. Attach the ifstats structure. */
+ if (iop->ioc_count != sizeof(struct ifreq) || us->ppa == 0)
+ break;
+ ifr = (struct ifreq *)mp->b_cont->b_rptr;
+ /* Find the unit number in the interface name. */
+ for (i = 0; i < IFNAMSIZ; i++) {
+ if (ifr->ifr_name[i] == 0 ||
+ (ifr->ifr_name[i] >= '0' &&
+ ifr->ifr_name[i] <= '9'))
+ break;
+ else
+ us->ifname[i] = ifr->ifr_name[i];
+ }
+ us->ifname[i] = 0;
+
+ /* Convert the unit number to binary. */
+ for (n = 0; i < IFNAMSIZ; i++) {
+ if (ifr->ifr_name[i] == 0) {
+ break;
+ }
+ else {
+ n = n * 10 + ifr->ifr_name[i] - '0';
+ }
+ }
+
+ /* Verify the ppa. */
+ if (us->ppa->ppa_id != n)
+ break;
+ ppa = us->ppa;
+
+ /* Set up the netstat block. */
+ strncpy (ppa->ifname, us->ifname, IFNAMSIZ);
+
+ ppa->ifstats.ifs_name = ppa->ifname;
+ ppa->ifstats.ifs_unit = n;
+ ppa->ifstats.ifs_active = us->state != DL_UNBOUND;
+ ppa->ifstats.ifs_mtu = ppa->mtu;
+
+ /* Link in statistics used by netstat. */
+ ppa->ifstats.ifs_next = ifstats;
+ ifstats = &ppa->ifstats;
+
+ iop->ioc_count = 0;
+ error = 0;
+ break;
+
+ case SIOCGIFFLAGS:
+ if (!(us->flags & US_CONTROL)) {
+ if (us->ppa)
+ us = us->ppa;
+ else
+ break;
+ }
+ ((struct iocblk_in *)iop)->ioc_ifflags = us->ifflags;
+ error = 0;
+ break;
+
+ case SIOCSIFFLAGS:
+ if (!(us->flags & US_CONTROL)) {
+ if (us->ppa)
+ us = us->ppa;
+ else
+ break;
+ }
+ us->ifflags = ((struct iocblk_in *)iop)->ioc_ifflags;
+ error = 0;
+ break;
+
+ case SIOCSIFADDR:
+ if (!(us->flags & US_CONTROL)) {
+ if (us->ppa)
+ us = us->ppa;
+ else
+ break;
+ }
+ us->ifflags |= IFF_RUNNING;
+ ((struct iocblk_in *)iop)->ioc_ifflags |= IFF_RUNNING;
+ error = 0;
+ break;
+
+ case SIOCSIFMTU:
+ /*
+ * Vanilla SVR4 systems don't handle SIOCSIFMTU, rather
+ * they take the MTU from the DL_INFO_ACK we sent in response
+ * to their DL_INFO_REQ. Fortunately, they will update the
+ * MTU if we send an unsolicited DL_INFO_ACK up.
+ */
+ if ((mq = allocb(sizeof(dl_info_req_t), BPRI_HI)) == 0)
+ break; /* should do bufcall */
+ ((union DL_primitives *)mq->b_rptr)->dl_primitive = DL_INFO_REQ;
+ mq->b_wptr = mq->b_rptr + sizeof(dl_info_req_t);
+ dlpi_request(q, mq, us);
+ error = 0;
+ break;
+
+ case SIOCGIFNETMASK:
+ case SIOCSIFNETMASK:
+ case SIOCGIFADDR:
+ case SIOCGIFDSTADDR:
+ case SIOCSIFDSTADDR:
+ case SIOCGIFMETRIC:
+ error = 0;
+ break;
+#endif /* LACHTCP */
+
+ default:
+ if (us->ppa == 0 || us->ppa->lowerq == 0)
+ break;
+ us->ioc_id = iop->ioc_id;
+ error = -1;
+ switch (iop->ioc_cmd) {
+ case PPPIO_GETSTAT:
+ case PPPIO_GETCSTAT:
+ if (us->flags & US_LASTMOD) {
+ error = EINVAL;
+ break;
+ }
+ putnext(us->ppa->lowerq, mp);
+ break;
+ default:
+ if (us->flags & US_PRIV)
+ putnext(us->ppa->lowerq, mp);
+ else {
+ DPRINT1("ppp ioctl %x rejected\n", iop->ioc_cmd);
+ error = EPERM;
+ }
+ break;
+ }
+ break;
+ }
+
+ if (error > 0) {
+ iop->ioc_error = error;
+ mp->b_datap->db_type = M_IOCNAK;
+ qreply(q, mp);
+ } else if (error == 0) {
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+ }
+ break;
+
+ case M_FLUSH:
+ if (us->flags & US_DBGLOG)
+ DPRINT2("ppp/%d: flush %x\n", us->mn, *mp->b_rptr);
+ if (*mp->b_rptr & FLUSHW)
+ flushq(q, FLUSHDATA);
+ if (*mp->b_rptr & FLUSHR) {
+ *mp->b_rptr &= ~FLUSHW;
+ qreply(q, mp);
+ } else
+ freemsg(mp);
+ break;
+
+ default:
+ freemsg(mp);
+ break;
+ }
+ return 0;
+}
+
+#ifndef NO_DLPI
+static void
+dlpi_request(q, mp, us)
+ queue_t *q;
+ mblk_t *mp;
+ upperstr_t *us;
+{
+ union DL_primitives *d = (union DL_primitives *) mp->b_rptr;
+ int size = mp->b_wptr - mp->b_rptr;
+ mblk_t *reply, *np;
+ upperstr_t *ppa, *os;
+ int sap, len;
+ dl_info_ack_t *info;
+ dl_bind_ack_t *ackp;
+#if DL_CURRENT_VERSION >= 2
+ dl_phys_addr_ack_t *paddrack;
+ static struct ether_addr eaddr = {0};
+#endif
+
+ if (us->flags & US_DBGLOG)
+ DPRINT3("ppp/%d: dlpi prim %x len=%d\n", us->mn,
+ d->dl_primitive, size);
+ switch (d->dl_primitive) {
+ case DL_INFO_REQ:
+ if (size < sizeof(dl_info_req_t))
+ goto badprim;
+ if ((reply = allocb(sizeof(dl_info_ack_t), BPRI_HI)) == 0)
+ break; /* should do bufcall */
+ reply->b_datap->db_type = M_PCPROTO;
+ info = (dl_info_ack_t *) reply->b_wptr;
+ reply->b_wptr += sizeof(dl_info_ack_t);
+ bzero((caddr_t) info, sizeof(dl_info_ack_t));
+ info->dl_primitive = DL_INFO_ACK;
+ info->dl_max_sdu = us->ppa? us->ppa->mtu: PPP_MAXMTU;
+ info->dl_min_sdu = 1;
+ info->dl_addr_length = sizeof(uint);
+ info->dl_mac_type = DL_ETHER; /* a bigger lie */
+ info->dl_current_state = us->state;
+ info->dl_service_mode = DL_CLDLS;
+ info->dl_provider_style = DL_STYLE2;
+#if DL_CURRENT_VERSION >= 2
+ info->dl_sap_length = sizeof(uint);
+ info->dl_version = DL_CURRENT_VERSION;
+#endif
+ qreply(q, reply);
+ break;
+
+ case DL_ATTACH_REQ:
+ if (size < sizeof(dl_attach_req_t))
+ goto badprim;
+ if (us->state != DL_UNATTACHED || us->ppa != 0) {
+ dlpi_error(q, us, DL_ATTACH_REQ, DL_OUTSTATE, 0);
+ break;
+ }
+ for (ppa = ppas; ppa != 0; ppa = ppa->nextppa)
+ if (ppa->ppa_id == d->attach_req.dl_ppa)
+ break;
+ if (ppa == 0) {
+ dlpi_error(q, us, DL_ATTACH_REQ, DL_BADPPA, 0);
+ break;
+ }
+ us->ppa = ppa;
+ qwriter(q, mp, attach_ppa, PERIM_OUTER);
+ return;
+
+ case DL_DETACH_REQ:
+ if (size < sizeof(dl_detach_req_t))
+ goto badprim;
+ if (us->state != DL_UNBOUND || us->ppa == 0) {
+ dlpi_error(q, us, DL_DETACH_REQ, DL_OUTSTATE, 0);
+ break;
+ }
+ qwriter(q, mp, detach_ppa, PERIM_OUTER);
+ return;
+
+ case DL_BIND_REQ:
+ if (size < sizeof(dl_bind_req_t))
+ goto badprim;
+ if (us->state != DL_UNBOUND || us->ppa == 0) {
+ dlpi_error(q, us, DL_BIND_REQ, DL_OUTSTATE, 0);
+ break;
+ }
+#if 0
+ /* apparently this test fails (unnecessarily?) on some systems */
+ if (d->bind_req.dl_service_mode != DL_CLDLS) {
+ dlpi_error(q, us, DL_BIND_REQ, DL_UNSUPPORTED, 0);
+ break;
+ }
+#endif
+
+ /* saps must be valid PPP network protocol numbers,
+ except that we accept ETHERTYPE_IP in place of PPP_IP. */
+ sap = d->bind_req.dl_sap;
+ us->req_sap = sap;
+
+#if defined(SOL2)
+ if (us->flags & US_DBGLOG)
+ DPRINT2("DL_BIND_REQ: ip gives sap = 0x%x, us = 0x%x", sap, us);
+
+ if (sap == ETHERTYPE_IP) /* normal IFF_IPV4 */
+ sap = PPP_IP;
+ else if (sap == ETHERTYPE_IPV6) /* when IFF_IPV6 is set */
+ sap = PPP_IPV6;
+ else if (sap == ETHERTYPE_ALLSAP) /* snoop gives sap of 0 */
+ sap = PPP_ALLSAP;
+ else {
+ DPRINT2("DL_BIND_REQ: unrecognized sap = 0x%x, us = 0x%x", sap, us);
+ dlpi_error(q, us, DL_BIND_REQ, DL_BADADDR, 0);
+ break;
+ }
+#else
+ if (sap == ETHERTYPE_IP)
+ sap = PPP_IP;
+ if (sap < 0x21 || sap > 0x3fff || (sap & 0x101) != 1) {
+ dlpi_error(q, us, DL_BIND_REQ, DL_BADADDR, 0);
+ break;
+ }
+#endif /* defined(SOL2) */
+
+ /* check that no other stream is bound to this sap already. */
+ for (os = us->ppa; os != 0; os = os->next)
+ if (os->sap == sap)
+ break;
+ if (os != 0) {
+ dlpi_error(q, us, DL_BIND_REQ, DL_NOADDR, 0);
+ break;
+ }
+
+ us->sap = sap;
+ us->state = DL_IDLE;
+
+ if ((reply = allocb(sizeof(dl_bind_ack_t) + sizeof(uint),
+ BPRI_HI)) == 0)
+ break; /* should do bufcall */
+ ackp = (dl_bind_ack_t *) reply->b_wptr;
+ reply->b_wptr += sizeof(dl_bind_ack_t) + sizeof(uint);
+ reply->b_datap->db_type = M_PCPROTO;
+ bzero((caddr_t) ackp, sizeof(dl_bind_ack_t));
+ ackp->dl_primitive = DL_BIND_ACK;
+ ackp->dl_sap = sap;
+ ackp->dl_addr_length = sizeof(uint);
+ ackp->dl_addr_offset = sizeof(dl_bind_ack_t);
+ *(uint *)(ackp+1) = sap;
+ qreply(q, reply);
+ break;
+
+ case DL_UNBIND_REQ:
+ if (size < sizeof(dl_unbind_req_t))
+ goto badprim;
+ if (us->state != DL_IDLE) {
+ dlpi_error(q, us, DL_UNBIND_REQ, DL_OUTSTATE, 0);
+ break;
+ }
+ us->sap = -1;
+ us->state = DL_UNBOUND;
+#ifdef LACHTCP
+ us->ppa->ifstats.ifs_active = 0;
+#endif
+ dlpi_ok(q, DL_UNBIND_REQ);
+ break;
+
+ case DL_UNITDATA_REQ:
+ if (size < sizeof(dl_unitdata_req_t))
+ goto badprim;
+ if (us->state != DL_IDLE) {
+ dlpi_error(q, us, DL_UNITDATA_REQ, DL_OUTSTATE, 0);
+ break;
+ }
+ if ((ppa = us->ppa) == 0) {
+ cmn_err(CE_CONT, "ppp: in state dl_idle but ppa == 0?\n");
+ break;
+ }
+ len = mp->b_cont == 0? 0: msgdsize(mp->b_cont);
+ if (len > ppa->mtu) {
+ DPRINT2("dlpi data too large (%d > %d)\n", len, ppa->mtu);
+ break;
+ }
+
+#if defined(SOL2)
+ /*
+ * Should there be any promiscuous stream(s), send the data
+ * up for each promiscuous stream that we recognize.
+ */
+ if (mp->b_cont)
+ promisc_sendup(ppa, mp->b_cont, us->sap, 0);
+#endif /* defined(SOL2) */
+
+ mp->b_band = 0;
+#ifdef PRIOQ
+ /* Extract s_port & d_port from IP-packet, the code is a bit
+ dirty here, but so am I, too... */
+ if (mp->b_datap->db_type == M_PROTO && us->sap == PPP_IP
+ && mp->b_cont != 0) {
+ u_char *bb, *tlh;
+ int iphlen, len;
+ u_short *ptr;
+ u_char band_unset, cur_band, syn;
+ u_short s_port, d_port;
+
+ bb = mp->b_cont->b_rptr; /* bb points to IP-header*/
+ len = mp->b_cont->b_wptr - mp->b_cont->b_rptr;
+ syn = 0;
+ s_port = IPPORT_DEFAULT;
+ d_port = IPPORT_DEFAULT;
+ if (len >= 20) { /* 20 = minimum length of IP header */
+ iphlen = (bb[0] & 0x0f) * 4;
+ tlh = bb + iphlen;
+ len -= iphlen;
+ switch (bb[9]) {
+ case IPPROTO_TCP:
+ if (len >= 20) { /* min length of TCP header */
+ s_port = (tlh[0] << 8) + tlh[1];
+ d_port = (tlh[2] << 8) + tlh[3];
+ syn = tlh[13] & 0x02;
+ }
+ break;
+ case IPPROTO_UDP:
+ if (len >= 8) { /* min length of UDP header */
+ s_port = (tlh[0] << 8) + tlh[1];
+ d_port = (tlh[2] << 8) + tlh[3];
+ }
+ break;
+ }
+ }
+
+ /*
+ * Now calculate b_band for this packet from the
+ * port-priority table.
+ */
+ ptr = prioq_table;
+ cur_band = max_band;
+ band_unset = 1;
+ while (*ptr) {
+ while (*ptr && band_unset)
+ if (s_port == *ptr || d_port == *ptr++) {
+ mp->b_band = cur_band;
+ band_unset = 0;
+ break;
+ }
+ ptr++;
+ cur_band--;
+ }
+ if (band_unset)
+ mp->b_band = def_band;
+ /* It may be usable to urge SYN packets a bit */
+ if (syn)
+ mp->b_band++;
+ }
+#endif /* PRIOQ */
+ /* this assumes PPP_HDRLEN <= sizeof(dl_unitdata_req_t) */
+ if (mp->b_datap->db_ref > 1) {
+ np = allocb(PPP_HDRLEN, BPRI_HI);
+ if (np == 0)
+ break; /* gak! */
+ np->b_cont = mp->b_cont;
+ mp->b_cont = 0;
+ freeb(mp);
+ mp = np;
+ } else
+ mp->b_datap->db_type = M_DATA;
+ /* XXX should use dl_dest_addr_offset/length here,
+ but we would have to translate ETHERTYPE_IP -> PPP_IP */
+ mp->b_wptr = mp->b_rptr + PPP_HDRLEN;
+ mp->b_rptr[0] = PPP_ALLSTATIONS;
+ mp->b_rptr[1] = PPP_UI;
+ mp->b_rptr[2] = us->sap >> 8;
+ mp->b_rptr[3] = us->sap;
+ if (pass_packet(us, mp, 1)) {
+ if (!send_data(mp, us))
+ putq(q, mp);
+ }
+ return;
+
+#if DL_CURRENT_VERSION >= 2
+ case DL_PHYS_ADDR_REQ:
+ if (size < sizeof(dl_phys_addr_req_t))
+ goto badprim;
+
+ /*
+ * Don't check state because ifconfig sends this one down too
+ */
+
+ if ((reply = allocb(sizeof(dl_phys_addr_ack_t)+ETHERADDRL,
+ BPRI_HI)) == 0)
+ break; /* should do bufcall */
+ reply->b_datap->db_type = M_PCPROTO;
+ paddrack = (dl_phys_addr_ack_t *) reply->b_wptr;
+ reply->b_wptr += sizeof(dl_phys_addr_ack_t);
+ bzero((caddr_t) paddrack, sizeof(dl_phys_addr_ack_t)+ETHERADDRL);
+ paddrack->dl_primitive = DL_PHYS_ADDR_ACK;
+ paddrack->dl_addr_length = ETHERADDRL;
+ paddrack->dl_addr_offset = sizeof(dl_phys_addr_ack_t);
+ bcopy(&eaddr, reply->b_wptr, ETHERADDRL);
+ reply->b_wptr += ETHERADDRL;
+ qreply(q, reply);
+ break;
+
+#if defined(SOL2)
+ case DL_PROMISCON_REQ:
+ if (size < sizeof(dl_promiscon_req_t))
+ goto badprim;
+ us->flags |= US_PROMISC;
+ dlpi_ok(q, DL_PROMISCON_REQ);
+ break;
+
+ case DL_PROMISCOFF_REQ:
+ if (size < sizeof(dl_promiscoff_req_t))
+ goto badprim;
+ us->flags &= ~US_PROMISC;
+ dlpi_ok(q, DL_PROMISCOFF_REQ);
+ break;
+#else
+ case DL_PROMISCON_REQ: /* fall thru */
+ case DL_PROMISCOFF_REQ: /* fall thru */
+#endif /* defined(SOL2) */
+#endif /* DL_CURRENT_VERSION >= 2 */
+
+#if DL_CURRENT_VERSION >= 2
+ case DL_SET_PHYS_ADDR_REQ:
+ case DL_SUBS_BIND_REQ:
+ case DL_SUBS_UNBIND_REQ:
+ case DL_ENABMULTI_REQ:
+ case DL_DISABMULTI_REQ:
+ case DL_XID_REQ:
+ case DL_TEST_REQ:
+ case DL_REPLY_UPDATE_REQ:
+ case DL_REPLY_REQ:
+ case DL_DATA_ACK_REQ:
+#endif
+ case DL_CONNECT_REQ:
+ case DL_TOKEN_REQ:
+ dlpi_error(q, us, d->dl_primitive, DL_NOTSUPPORTED, 0);
+ break;
+
+ case DL_CONNECT_RES:
+ case DL_DISCONNECT_REQ:
+ case DL_RESET_REQ:
+ case DL_RESET_RES:
+ dlpi_error(q, us, d->dl_primitive, DL_OUTSTATE, 0);
+ break;
+
+ case DL_UDQOS_REQ:
+ dlpi_error(q, us, d->dl_primitive, DL_BADQOSTYPE, 0);
+ break;
+
+#if DL_CURRENT_VERSION >= 2
+ case DL_TEST_RES:
+ case DL_XID_RES:
+ break;
+#endif
+
+ default:
+ cmn_err(CE_CONT, "ppp: unknown dlpi prim 0x%x\n", d->dl_primitive);
+ /* fall through */
+ badprim:
+ dlpi_error(q, us, d->dl_primitive, DL_BADPRIM, 0);
+ break;
+ }
+ freemsg(mp);
+}
+
+static void
+dlpi_error(q, us, prim, err, uerr)
+ queue_t *q;
+ upperstr_t *us;
+ int prim, err, uerr;
+{
+ mblk_t *reply;
+ dl_error_ack_t *errp;
+
+ if (us->flags & US_DBGLOG)
+ DPRINT3("ppp/%d: dlpi error, prim=%x, err=%x\n", us->mn, prim, err);
+ reply = allocb(sizeof(dl_error_ack_t), BPRI_HI);
+ if (reply == 0)
+ return; /* XXX should do bufcall */
+ reply->b_datap->db_type = M_PCPROTO;
+ errp = (dl_error_ack_t *) reply->b_wptr;
+ reply->b_wptr += sizeof(dl_error_ack_t);
+ errp->dl_primitive = DL_ERROR_ACK;
+ errp->dl_error_primitive = prim;
+ errp->dl_errno = err;
+ errp->dl_unix_errno = uerr;
+ qreply(q, reply);
+}
+
+static void
+dlpi_ok(q, prim)
+ queue_t *q;
+ int prim;
+{
+ mblk_t *reply;
+ dl_ok_ack_t *okp;
+
+ reply = allocb(sizeof(dl_ok_ack_t), BPRI_HI);
+ if (reply == 0)
+ return; /* XXX should do bufcall */
+ reply->b_datap->db_type = M_PCPROTO;
+ okp = (dl_ok_ack_t *) reply->b_wptr;
+ reply->b_wptr += sizeof(dl_ok_ack_t);
+ okp->dl_primitive = DL_OK_ACK;
+ okp->dl_correct_primitive = prim;
+ qreply(q, reply);
+}
+#endif /* NO_DLPI */
+
+static int
+pass_packet(us, mp, outbound)
+ upperstr_t *us;
+ mblk_t *mp;
+ int outbound;
+{
+ int pass;
+ upperstr_t *ppa;
+
+ if ((ppa = us->ppa) == 0) {
+ freemsg(mp);
+ return 0;
+ }
+
+#ifdef FILTER_PACKETS
+ pass = ip_hard_filter(us, mp, outbound);
+#else
+ /*
+ * Here is where we might, in future, decide whether to pass
+ * or drop the packet, and whether it counts as link activity.
+ */
+ pass = 1;
+#endif /* FILTER_PACKETS */
+
+ if (pass < 0) {
+ /* pass only if link already up, and don't update time */
+ if (ppa->lowerq == 0) {
+ freemsg(mp);
+ return 0;
+ }
+ pass = 1;
+ } else if (pass) {
+ if (outbound)
+ ppa->last_sent = time;
+ else
+ ppa->last_recv = time;
+ }
+
+ return pass;
+}
+
+/*
+ * We have some data to send down to the lower stream (or up the
+ * control stream, if we don't have a lower stream attached).
+ * Returns 1 if the message was dealt with, 0 if it wasn't able
+ * to be sent on and should therefore be queued up.
+ */
+static int
+send_data(mp, us)
+ mblk_t *mp;
+ upperstr_t *us;
+{
+ upperstr_t *ppa;
+
+ if ((us->flags & US_BLOCKED) || us->npmode == NPMODE_QUEUE)
+ return 0;
+ ppa = us->ppa;
+ if (ppa == 0 || us->npmode == NPMODE_DROP || us->npmode == NPMODE_ERROR) {
+ if (us->flags & US_DBGLOG)
+ DPRINT2("ppp/%d: dropping pkt (npmode=%d)\n", us->mn, us->npmode);
+ freemsg(mp);
+ return 1;
+ }
+ if (ppa->lowerq == 0) {
+ /* try to send it up the control stream */
+ if (bcanputnext(ppa->q, mp->b_band)) {
+ /*
+ * The message seems to get corrupted for some reason if
+ * we just send the message up as it is, so we send a copy.
+ */
+ mblk_t *np = copymsg(mp);
+ freemsg(mp);
+ if (np != 0)
+ putnext(ppa->q, np);
+ return 1;
+ }
+ } else {
+ if (bcanputnext(ppa->lowerq, mp->b_band)) {
+ MT_ENTER(&ppa->stats_lock);
+ ppa->stats.ppp_opackets++;
+ ppa->stats.ppp_obytes += msgdsize(mp);
+#ifdef INCR_OPACKETS
+ INCR_OPACKETS(ppa);
+#endif
+ MT_EXIT(&ppa->stats_lock);
+ /*
+ * The lower queue is only ever detached while holding an
+ * exclusive lock on the whole driver. So we can be confident
+ * that the lower queue is still there.
+ */
+ putnext(ppa->lowerq, mp);
+ return 1;
+ }
+ }
+ us->flags |= US_BLOCKED;
+ return 0;
+}
+
+/*
+ * Allocate a new PPA id and link this stream into the list of PPAs.
+ * This procedure is called with an exclusive lock on all queues in
+ * this driver.
+ */
+static void
+new_ppa(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *us, *up, **usp;
+ int ppa_id;
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("new_ppa: q_ptr = 0!\n");
+ return;
+ }
+
+ usp = &ppas;
+ ppa_id = 0;
+ while ((up = *usp) != 0 && ppa_id == up->ppa_id) {
+ ++ppa_id;
+ usp = &up->nextppa;
+ }
+ us->ppa_id = ppa_id;
+ us->ppa = us;
+ us->next = 0;
+ us->nextppa = *usp;
+ *usp = us;
+ us->flags |= US_CONTROL;
+ us->npmode = NPMODE_PASS;
+
+ us->mtu = PPP_MTU;
+ us->mru = PPP_MRU;
+
+#ifdef SOL2
+ /*
+ * Create a kstats record for our statistics, so netstat -i works.
+ */
+ if (us->kstats == 0) {
+ char unit[32];
+
+ sprintf(unit, "ppp%d", us->ppa->ppa_id);
+ us->kstats = kstat_create("ppp", us->ppa->ppa_id, unit,
+ "net", KSTAT_TYPE_NAMED, 4, 0);
+ if (us->kstats != 0) {
+ kstat_named_t *kn = KSTAT_NAMED_PTR(us->kstats);
+
+ strcpy(kn[0].name, "ipackets");
+ kn[0].data_type = KSTAT_DATA_ULONG;
+ strcpy(kn[1].name, "ierrors");
+ kn[1].data_type = KSTAT_DATA_ULONG;
+ strcpy(kn[2].name, "opackets");
+ kn[2].data_type = KSTAT_DATA_ULONG;
+ strcpy(kn[3].name, "oerrors");
+ kn[3].data_type = KSTAT_DATA_ULONG;
+ kstat_install(us->kstats);
+ }
+ }
+#endif /* SOL2 */
+
+ *(int *)mp->b_cont->b_rptr = ppa_id;
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+}
+
+static void
+attach_ppa(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *us, *t;
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("attach_ppa: q_ptr = 0!\n");
+ return;
+ }
+
+#ifndef NO_DLPI
+ us->state = DL_UNBOUND;
+#endif
+ for (t = us->ppa; t->next != 0; t = t->next)
+ ;
+ t->next = us;
+ us->next = 0;
+ if (mp->b_datap->db_type == M_IOCTL) {
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+ } else {
+#ifndef NO_DLPI
+ dlpi_ok(q, DL_ATTACH_REQ);
+#endif
+ }
+}
+
+static void
+detach_ppa(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *us, *t;
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("detach_ppa: q_ptr = 0!\n");
+ return;
+ }
+
+ for (t = us->ppa; t->next != 0; t = t->next)
+ if (t->next == us) {
+ t->next = us->next;
+ break;
+ }
+ us->next = 0;
+ us->ppa = 0;
+#ifndef NO_DLPI
+ us->state = DL_UNATTACHED;
+ dlpi_ok(q, DL_DETACH_REQ);
+#endif
+}
+
+/*
+ * We call this with qwriter in order to give the upper queue procedures
+ * the guarantee that the lower queue is not going to go away while
+ * they are executing.
+ */
+static void
+detach_lower(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *us;
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("detach_lower: q_ptr = 0!\n");
+ return;
+ }
+
+ LOCK_LOWER_W;
+ us->lowerq->q_ptr = 0;
+ RD(us->lowerq)->q_ptr = 0;
+ us->lowerq = 0;
+ UNLOCK_LOWER;
+
+ /* Unblock streams which now feed back up the control stream. */
+ qenable(us->q);
+
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+}
+
+static int
+pppuwsrv(q)
+ queue_t *q;
+{
+ upperstr_t *us, *as;
+ mblk_t *mp;
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("pppuwsrv: q_ptr = 0!\n");
+ return 0;
+ }
+
+ /*
+ * If this is a control stream, then this service procedure
+ * probably got enabled because of flow control in the lower
+ * stream being enabled (or because of the lower stream going
+ * away). Therefore we enable the service procedure of all
+ * attached upper streams.
+ */
+ if (us->flags & US_CONTROL) {
+ for (as = us->next; as != 0; as = as->next)
+ qenable(WR(as->q));
+ }
+
+ /* Try to send on any data queued here. */
+ us->flags &= ~US_BLOCKED;
+ while ((mp = getq(q)) != 0) {
+ if (!send_data(mp, us)) {
+ putbq(q, mp);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/* should never get called... */
+static int
+ppplwput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ putnext(q, mp);
+ return 0;
+}
+
+static int
+ppplwsrv(q)
+ queue_t *q;
+{
+ queue_t *uq;
+
+ /*
+ * Flow control has back-enabled this stream:
+ * enable the upper write service procedure for
+ * the upper control stream for this lower stream.
+ */
+ LOCK_LOWER_R;
+ uq = (queue_t *) q->q_ptr;
+ if (uq != 0)
+ qenable(uq);
+ UNLOCK_LOWER;
+ return 0;
+}
+
+/*
+ * This should only get called for control streams.
+ */
+static int
+pppurput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *ppa, *us;
+ int proto, len;
+ struct iocblk *iop;
+
+ ppa = (upperstr_t *) q->q_ptr;
+ if (ppa == 0) {
+ DPRINT("pppurput: q_ptr = 0!\n");
+ return 0;
+ }
+
+ switch (mp->b_datap->db_type) {
+ case M_CTL:
+ MT_ENTER(&ppa->stats_lock);
+ switch (*mp->b_rptr) {
+ case PPPCTL_IERROR:
+#ifdef INCR_IERRORS
+ INCR_IERRORS(ppa);
+#endif
+ ppa->stats.ppp_ierrors++;
+ break;
+ case PPPCTL_OERROR:
+#ifdef INCR_OERRORS
+ INCR_OERRORS(ppa);
+#endif
+ ppa->stats.ppp_oerrors++;
+ break;
+ }
+ MT_EXIT(&ppa->stats_lock);
+ freemsg(mp);
+ break;
+
+ case M_IOCACK:
+ case M_IOCNAK:
+ /*
+ * Attempt to match up the response with the stream
+ * that the request came from.
+ */
+ iop = (struct iocblk *) mp->b_rptr;
+ for (us = ppa; us != 0; us = us->next)
+ if (us->ioc_id == iop->ioc_id)
+ break;
+ if (us == 0)
+ freemsg(mp);
+ else
+ putnext(us->q, mp);
+ break;
+
+ case M_HANGUP:
+ /*
+ * The serial device has hung up. We don't want to send
+ * the M_HANGUP message up to pppd because that will stop
+ * us from using the control stream any more. Instead we
+ * send a zero-length message as an end-of-file indication.
+ */
+ freemsg(mp);
+ mp = allocb(1, BPRI_HI);
+ if (mp == 0) {
+ DPRINT1("ppp/%d: couldn't allocate eof message!\n", ppa->mn);
+ break;
+ }
+ putnext(ppa->q, mp);
+ break;
+
+ default:
+ if (mp->b_datap->db_type == M_DATA) {
+ len = msgdsize(mp);
+ if (mp->b_wptr - mp->b_rptr < PPP_HDRLEN) {
+ PULLUP(mp, PPP_HDRLEN);
+ if (mp == 0) {
+ DPRINT1("ppp_urput: msgpullup failed (len=%d)\n", len);
+ break;
+ }
+ }
+ MT_ENTER(&ppa->stats_lock);
+ ppa->stats.ppp_ipackets++;
+ ppa->stats.ppp_ibytes += len;
+#ifdef INCR_IPACKETS
+ INCR_IPACKETS(ppa);
+#endif
+ MT_EXIT(&ppa->stats_lock);
+
+ proto = PPP_PROTOCOL(mp->b_rptr);
+
+#if defined(SOL2)
+ /*
+ * Should there be any promiscuous stream(s), send the data
+ * up for each promiscuous stream that we recognize.
+ */
+ promisc_sendup(ppa, mp, proto, 1);
+#endif /* defined(SOL2) */
+
+ if (proto < 0x8000 && (us = find_dest(ppa, proto)) != 0) {
+ /*
+ * A data packet for some network protocol.
+ * Queue it on the upper stream for that protocol.
+ * XXX could we just putnext it? (would require thought)
+ * The rblocked flag is there to ensure that we keep
+ * messages in order for each network protocol.
+ */
+ if (!pass_packet(us, mp, 0))
+ break;
+ if (!us->rblocked && !canput(us->q))
+ us->rblocked = 1;
+ if (!us->rblocked)
+ putq(us->q, mp);
+ else
+ putq(q, mp);
+ break;
+ }
+ }
+ /*
+ * A control frame, a frame for an unknown protocol,
+ * or some other message type.
+ * Send it up to pppd via the control stream.
+ */
+ if (queclass(mp) == QPCTL || canputnext(ppa->q))
+ putnext(ppa->q, mp);
+ else
+ putq(q, mp);
+ break;
+ }
+
+ return 0;
+}
+
+static int
+pppursrv(q)
+ queue_t *q;
+{
+ upperstr_t *us, *as;
+ mblk_t *mp, *hdr;
+#ifndef NO_DLPI
+ dl_unitdata_ind_t *ud;
+#endif
+ int proto;
+
+ us = (upperstr_t *) q->q_ptr;
+ if (us == 0) {
+ DPRINT("pppursrv: q_ptr = 0!\n");
+ return 0;
+ }
+
+ if (us->flags & US_CONTROL) {
+ /*
+ * A control stream.
+ * If there is no lower queue attached, run the write service
+ * routines of other upper streams attached to this PPA.
+ */
+ if (us->lowerq == 0) {
+ as = us;
+ do {
+ if (as->flags & US_BLOCKED)
+ qenable(WR(as->q));
+ as = as->next;
+ } while (as != 0);
+ }
+
+ /*
+ * Messages get queued on this stream's read queue if they
+ * can't be queued on the read queue of the attached stream
+ * that they are destined for. This is for flow control -
+ * when this queue fills up, the lower read put procedure will
+ * queue messages there and the flow control will propagate
+ * down from there.
+ */
+ while ((mp = getq(q)) != 0) {
+ proto = PPP_PROTOCOL(mp->b_rptr);
+ if (proto < 0x8000 && (as = find_dest(us, proto)) != 0) {
+ if (!canput(as->q))
+ break;
+ putq(as->q, mp);
+ } else {
+ if (!canputnext(q))
+ break;
+ putnext(q, mp);
+ }
+ }
+ if (mp) {
+ putbq(q, mp);
+ } else {
+ /* can now put stuff directly on network protocol streams again */
+ for (as = us->next; as != 0; as = as->next)
+ as->rblocked = 0;
+ }
+
+ /*
+ * If this stream has a lower stream attached,
+ * enable the read queue's service routine.
+ * XXX we should really only do this if the queue length
+ * has dropped below the low-water mark.
+ */
+ if (us->lowerq != 0)
+ qenable(RD(us->lowerq));
+
+ } else {
+ /*
+ * A network protocol stream. Put a DLPI header on each
+ * packet and send it on.
+ * (Actually, it seems that the IP module will happily
+ * accept M_DATA messages without the DL_UNITDATA_IND header.)
+ */
+ while ((mp = getq(q)) != 0) {
+ if (!canputnext(q)) {
+ putbq(q, mp);
+ break;
+ }
+#ifndef NO_DLPI
+ proto = PPP_PROTOCOL(mp->b_rptr);
+ mp->b_rptr += PPP_HDRLEN;
+ hdr = allocb(sizeof(dl_unitdata_ind_t) + 2 * sizeof(uint),
+ BPRI_MED);
+ if (hdr == 0) {
+ /* XXX should put it back and use bufcall */
+ freemsg(mp);
+ continue;
+ }
+ hdr->b_datap->db_type = M_PROTO;
+ ud = (dl_unitdata_ind_t *) hdr->b_wptr;
+ hdr->b_wptr += sizeof(dl_unitdata_ind_t) + 2 * sizeof(uint);
+ hdr->b_cont = mp;
+ ud->dl_primitive = DL_UNITDATA_IND;
+ ud->dl_dest_addr_length = sizeof(uint);
+ ud->dl_dest_addr_offset = sizeof(dl_unitdata_ind_t);
+ ud->dl_src_addr_length = sizeof(uint);
+ ud->dl_src_addr_offset = ud->dl_dest_addr_offset + sizeof(uint);
+#if DL_CURRENT_VERSION >= 2
+ ud->dl_group_address = 0;
+#endif
+ /* Send the DLPI client the data with the SAP they requested,
+ (e.g. ETHERTYPE_IP) rather than the PPP protocol number
+ (e.g. PPP_IP) */
+ ((uint *)(ud + 1))[0] = us->req_sap; /* dest SAP */
+ ((uint *)(ud + 1))[1] = us->req_sap; /* src SAP */
+ putnext(q, hdr);
+#else /* NO_DLPI */
+ putnext(q, mp);
+#endif /* NO_DLPI */
+ }
+ /*
+ * Now that we have consumed some packets from this queue,
+ * enable the control stream's read service routine so that we
+ * can process any packets for us that might have got queued
+ * there for flow control reasons.
+ */
+ if (us->ppa)
+ qenable(us->ppa->q);
+ }
+
+ return 0;
+}
+
+static upperstr_t *
+find_dest(ppa, proto)
+ upperstr_t *ppa;
+ int proto;
+{
+ upperstr_t *us;
+
+ for (us = ppa->next; us != 0; us = us->next)
+ if (proto == us->sap)
+ break;
+ return us;
+}
+
+#if defined (SOL2)
+/*
+ * Test upstream promiscuous conditions. As of now, only pass IPv4 and
+ * Ipv6 packets upstream (let PPP packets be decoded elsewhere).
+ */
+static upperstr_t *
+find_promisc(us, proto)
+ upperstr_t *us;
+ int proto;
+{
+
+ if ((proto != PPP_IP) && (proto != PPP_IPV6))
+ return (upperstr_t *)0;
+
+ for ( ; us; us = us->next) {
+ if ((us->flags & US_PROMISC) && (us->state == DL_IDLE))
+ return us;
+ }
+
+ return (upperstr_t *)0;
+}
+
+/*
+ * Prepend an empty Ethernet header to msg for snoop, et al.
+ */
+static mblk_t *
+prepend_ether(us, mp, proto)
+ upperstr_t *us;
+ mblk_t *mp;
+ int proto;
+{
+ mblk_t *eh;
+ int type;
+
+ if ((eh = allocb(sizeof(struct ether_header), BPRI_HI)) == 0) {
+ freemsg(mp);
+ return (mblk_t *)0;
+ }
+
+ if (proto == PPP_IP)
+ type = ETHERTYPE_IP;
+ else if (proto == PPP_IPV6)
+ type = ETHERTYPE_IPV6;
+ else
+ type = proto; /* What else? Let decoder decide */
+
+ eh->b_wptr += sizeof(struct ether_header);
+ bzero((caddr_t)eh->b_rptr, sizeof(struct ether_header));
+ ((struct ether_header *)eh->b_rptr)->ether_type = htons((short)type);
+ eh->b_cont = mp;
+ return (eh);
+}
+
+/*
+ * Prepend DL_UNITDATA_IND mblk to msg
+ */
+static mblk_t *
+prepend_udind(us, mp, proto)
+ upperstr_t *us;
+ mblk_t *mp;
+ int proto;
+{
+ dl_unitdata_ind_t *dlu;
+ mblk_t *dh;
+ size_t size;
+
+ size = sizeof(dl_unitdata_ind_t);
+ if ((dh = allocb(size, BPRI_MED)) == 0) {
+ freemsg(mp);
+ return (mblk_t *)0;
+ }
+
+ dh->b_datap->db_type = M_PROTO;
+ dh->b_wptr = dh->b_datap->db_lim;
+ dh->b_rptr = dh->b_wptr - size;
+
+ dlu = (dl_unitdata_ind_t *)dh->b_rptr;
+ dlu->dl_primitive = DL_UNITDATA_IND;
+ dlu->dl_dest_addr_length = 0;
+ dlu->dl_dest_addr_offset = sizeof(dl_unitdata_ind_t);
+ dlu->dl_src_addr_length = 0;
+ dlu->dl_src_addr_offset = sizeof(dl_unitdata_ind_t);
+ dlu->dl_group_address = 0;
+
+ dh->b_cont = mp;
+ return (dh);
+}
+
+/*
+ * For any recognized promiscuous streams, send data upstream
+ */
+static void
+promisc_sendup(ppa, mp, proto, skip)
+ upperstr_t *ppa;
+ mblk_t *mp;
+ int proto, skip;
+{
+ mblk_t *dup_mp, *dup_dup_mp;
+ upperstr_t *prus, *nprus;
+
+ if ((prus = find_promisc(ppa, proto)) != 0) {
+ if (dup_mp = dupmsg(mp)) {
+
+ if (skip)
+ dup_mp->b_rptr += PPP_HDRLEN;
+
+ for ( ; nprus = find_promisc(prus->next, proto);
+ prus = nprus) {
+
+ if (dup_dup_mp = dupmsg(dup_mp)) {
+ if (canputnext(prus->q)) {
+ if (prus->flags & US_RAWDATA) {
+ dup_dup_mp = prepend_ether(prus, dup_dup_mp, proto);
+ putnext(prus->q, dup_dup_mp);
+ } else {
+ dup_dup_mp = prepend_udind(prus, dup_dup_mp, proto);
+ putnext(prus->q, dup_dup_mp);
+ }
+ } else {
+ DPRINT("ppp_urput: data to promisc q dropped\n");
+ freemsg(dup_dup_mp);
+ }
+ }
+ }
+
+ if (canputnext(prus->q)) {
+ if (prus->flags & US_RAWDATA) {
+ dup_mp = prepend_ether(prus, dup_mp, proto);
+ putnext(prus->q, dup_mp);
+ } else {
+ dup_mp = prepend_udind(prus, dup_mp, proto);
+ putnext(prus->q, dup_mp);
+ }
+ } else {
+ DPRINT("ppp_urput: data to promisc q dropped\n");
+ freemsg(dup_mp);
+ }
+ }
+ }
+}
+#endif /* defined(SOL2) */
+
+/*
+ * We simply put the message on to the associated upper control stream
+ * (either here or in ppplrsrv). That way we enter the perimeters
+ * before looking through the list of attached streams to decide which
+ * stream it should go up.
+ */
+static int
+ppplrput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ queue_t *uq;
+ struct iocblk *iop;
+
+ switch (mp->b_datap->db_type) {
+ case M_IOCTL:
+ iop = (struct iocblk *) mp->b_rptr;
+ iop->ioc_error = EINVAL;
+ mp->b_datap->db_type = M_IOCNAK;
+ qreply(q, mp);
+ return 0;
+ case M_FLUSH:
+ if (*mp->b_rptr & FLUSHR)
+ flushq(q, FLUSHDATA);
+ if (*mp->b_rptr & FLUSHW) {
+ *mp->b_rptr &= ~FLUSHR;
+ qreply(q, mp);
+ } else
+ freemsg(mp);
+ return 0;
+ }
+
+ /*
+ * If we can't get the lower lock straight away, queue this one
+ * rather than blocking, to avoid the possibility of deadlock.
+ */
+ if (!TRYLOCK_LOWER_R) {
+ putq(q, mp);
+ return 0;
+ }
+
+ /*
+ * Check that we're still connected to the driver.
+ */
+ uq = (queue_t *) q->q_ptr;
+ if (uq == 0) {
+ UNLOCK_LOWER;
+ DPRINT1("ppplrput: q = %x, uq = 0??\n", q);
+ freemsg(mp);
+ return 0;
+ }
+
+ /*
+ * Try to forward the message to the put routine for the upper
+ * control stream for this lower stream.
+ * If there are already messages queued here, queue this one so
+ * they don't get out of order.
+ */
+ if (queclass(mp) == QPCTL || (qsize(q) == 0 && canput(uq)))
+ put(uq, mp);
+ else
+ putq(q, mp);
+
+ UNLOCK_LOWER;
+ return 0;
+}
+
+static int
+ppplrsrv(q)
+ queue_t *q;
+{
+ mblk_t *mp;
+ queue_t *uq;
+
+ /*
+ * Packets get queued here for flow control reasons
+ * or if the lrput routine couldn't get the lower lock
+ * without blocking.
+ */
+ LOCK_LOWER_R;
+ uq = (queue_t *) q->q_ptr;
+ if (uq == 0) {
+ UNLOCK_LOWER;
+ flushq(q, FLUSHALL);
+ DPRINT1("ppplrsrv: q = %x, uq = 0??\n", q);
+ return 0;
+ }
+ while ((mp = getq(q)) != 0) {
+ if (queclass(mp) == QPCTL || canput(uq))
+ put(uq, mp);
+ else {
+ putbq(q, mp);
+ break;
+ }
+ }
+ UNLOCK_LOWER;
+ return 0;
+}
+
+static int
+putctl2(q, type, code, val)
+ queue_t *q;
+ int type, code, val;
+{
+ mblk_t *mp;
+
+ mp = allocb(2, BPRI_HI);
+ if (mp == 0)
+ return 0;
+ mp->b_datap->db_type = type;
+ mp->b_wptr[0] = code;
+ mp->b_wptr[1] = val;
+ mp->b_wptr += 2;
+ putnext(q, mp);
+ return 1;
+}
+
+static int
+putctl4(q, type, code, val)
+ queue_t *q;
+ int type, code, val;
+{
+ mblk_t *mp;
+
+ mp = allocb(4, BPRI_HI);
+ if (mp == 0)
+ return 0;
+ mp->b_datap->db_type = type;
+ mp->b_wptr[0] = code;
+ ((short *)mp->b_wptr)[1] = val;
+ mp->b_wptr += 4;
+ putnext(q, mp);
+ return 1;
+}
+
+static void
+debug_dump(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ upperstr_t *us;
+ queue_t *uq, *lq;
+
+ DPRINT("ppp upper streams:\n");
+ for (us = minor_devs; us != 0; us = us->nextmn) {
+ uq = us->q;
+ DPRINT3(" %d: q=%x rlev=%d",
+ us->mn, uq, (uq? qsize(uq): 0));
+ DPRINT3(" wlev=%d flags=0x%b", (uq? qsize(WR(uq)): 0),
+ us->flags, "\020\1priv\2control\3blocked\4last");
+ DPRINT3(" state=%x sap=%x req_sap=%x", us->state, us->sap,
+ us->req_sap);
+ if (us->ppa == 0)
+ DPRINT(" ppa=?\n");
+ else
+ DPRINT1(" ppa=%d\n", us->ppa->ppa_id);
+ if (us->flags & US_CONTROL) {
+ lq = us->lowerq;
+ DPRINT3(" control for %d lq=%x rlev=%d",
+ us->ppa_id, lq, (lq? qsize(RD(lq)): 0));
+ DPRINT3(" wlev=%d mru=%d mtu=%d\n",
+ (lq? qsize(lq): 0), us->mru, us->mtu);
+ }
+ }
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+}
+
+#ifdef FILTER_PACKETS
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <netinet/tcp.h>
+
+#define MAX_IPHDR 128 /* max TCP/IP header size */
+
+
+/* The following table contains a hard-coded list of protocol/port pairs.
+ * Any matching packets are either discarded unconditionally, or,
+ * if ok_if_link_up is non-zero when a connection does not currently exist
+ * (i.e., they go through if the connection is present, but never initiate
+ * a dial-out).
+ * This idea came from a post by dm@garage.uun.org (David Mazieres)
+ */
+static struct pktfilt_tab {
+ int proto;
+ u_short port;
+ u_short ok_if_link_up;
+} pktfilt_tab[] = {
+ { IPPROTO_UDP, 520, 1 }, /* RIP, ok to pass if link is up */
+ { IPPROTO_UDP, 123, 1 }, /* NTP, don't keep up the link for it */
+ { -1, 0, 0 } /* terminator entry has port == -1 */
+};
+
+
+static int
+ip_hard_filter(us, mp, outbound)
+ upperstr_t *us;
+ mblk_t *mp;
+ int outbound;
+{
+ struct ip *ip;
+ struct pktfilt_tab *pft;
+ mblk_t *temp_mp;
+ int proto;
+ int len, hlen;
+
+
+ /* Note, the PPP header has already been pulled up in all cases */
+ proto = PPP_PROTOCOL(mp->b_rptr);
+ if (us->flags & US_DBGLOG)
+ DPRINT3("ppp/%d: filter, proto=0x%x, out=%d\n", us->mn, proto, outbound);
+
+ switch (proto)
+ {
+ case PPP_IP:
+ if ((mp->b_wptr - mp->b_rptr) == PPP_HDRLEN && mp->b_cont != 0) {
+ temp_mp = mp->b_cont;
+ len = msgdsize(temp_mp);
+ hlen = (len < MAX_IPHDR) ? len : MAX_IPHDR;
+ PULLUP(temp_mp, hlen);
+ if (temp_mp == 0) {
+ DPRINT2("ppp/%d: filter, pullup next failed, len=%d\n",
+ us->mn, hlen);
+ mp->b_cont = 0; /* PULLUP() freed the rest */
+ freemsg(mp);
+ return 0;
+ }
+ ip = (struct ip *)mp->b_cont->b_rptr;
+ }
+ else {
+ len = msgdsize(mp);
+ hlen = (len < (PPP_HDRLEN+MAX_IPHDR)) ? len : (PPP_HDRLEN+MAX_IPHDR);
+ PULLUP(mp, hlen);
+ if (mp == 0) {
+ DPRINT2("ppp/%d: filter, pullup failed, len=%d\n",
+ us->mn, hlen);
+ return 0;
+ }
+ ip = (struct ip *)(mp->b_rptr + PPP_HDRLEN);
+ }
+
+ /* For IP traffic, certain packets (e.g., RIP) may be either
+ * 1. ignored - dropped completely
+ * 2. will not initiate a connection, but
+ * will be passed if a connection is currently up.
+ */
+ for (pft=pktfilt_tab; pft->proto != -1; pft++) {
+ if (ip->ip_p == pft->proto) {
+ switch(pft->proto) {
+ case IPPROTO_UDP:
+ if (((struct udphdr *) &((int *)ip)[ip->ip_hl])->uh_dport
+ == htons(pft->port)) goto endfor;
+ break;
+ case IPPROTO_TCP:
+ if (((struct tcphdr *) &((int *)ip)[ip->ip_hl])->th_dport
+ == htons(pft->port)) goto endfor;
+ break;
+ }
+ }
+ }
+ endfor:
+ if (pft->proto != -1) {
+ if (us->flags & US_DBGLOG)
+ DPRINT3("ppp/%d: found IP pkt, proto=0x%x (%d)\n",
+ us->mn, pft->proto, pft->port);
+ /* Discard if not connected, or if not pass_with_link_up */
+ /* else, if link is up let go by, but don't update time */
+ return pft->ok_if_link_up? -1: 0;
+ }
+ break;
+ } /* end switch (proto) */
+
+ return 1;
+}
+#endif /* FILTER_PACKETS */
+
diff --git a/mdk-stage1/ppp/solaris/ppp.conf b/mdk-stage1/ppp/solaris/ppp.conf
new file mode 100644
index 000000000..e443a7aac
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp.conf
@@ -0,0 +1 @@
+name="ppp" parent="pseudo" instance=0;
diff --git a/mdk-stage1/ppp/solaris/ppp_ahdlc.c b/mdk-stage1/ppp/solaris/ppp_ahdlc.c
new file mode 100644
index 000000000..d0b961258
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp_ahdlc.c
@@ -0,0 +1,878 @@
+/*
+ * ppp_ahdlc.c - STREAMS module for doing PPP asynchronous HDLC.
+ *
+ * Re-written by Adi Masputra <adi.masputra@sun.com>, based on
+ * the original ppp_ahdlc.c
+ *
+ * Copyright (c) 2000 by Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, provided that the above copyright
+ * notice appears in all copies.
+ *
+ * SUN MAKES NO REPRESENTATION OR WARRANTIES ABOUT THE SUITABILITY OF
+ * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+ * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES
+ *
+ * Copyright (c) 1994 The Australian National University.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, provided that the above copyright
+ * notice appears in all copies. This software is provided without any
+ * warranty, express or implied. The Australian National University
+ * makes no representations about the suitability of this software for
+ * any purpose.
+ *
+ * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
+ * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * THE AUSTRALIAN NATIONAL UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
+ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
+ * OR MODIFICATIONS.
+ *
+ * $Id$
+ */
+
+/*
+ * This file is used under Solaris 2, SVR4, SunOS 4, and Digital UNIX.
+ */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stream.h>
+#include <sys/errno.h>
+
+#ifdef SVR4
+#include <sys/conf.h>
+#include <sys/kmem.h>
+#include <sys/cmn_err.h>
+#include <sys/ddi.h>
+#else
+#include <sys/user.h>
+#ifdef __osf__
+#include <sys/cmn_err.h>
+#endif
+#endif /* SVR4 */
+
+#include <net/ppp_defs.h>
+#include <net/pppio.h>
+#include "ppp_mod.h"
+
+/*
+ * Right now, mutex is only enabled for Solaris 2.x
+ */
+#if defined(SOL2)
+#define USE_MUTEX
+#endif /* SOL2 */
+
+/*
+ * intpointer_t and uintpointer_t are signed and unsigned integer types
+ * large enough to hold any data pointer; that is, data pointers can be
+ * assigned into or from these integer types without losing precision.
+ * On recent Solaris releases, these types are defined in sys/int_types.h,
+ * but not on SunOS 4.x or the earlier Solaris versions.
+ */
+#if defined(_LP64) || defined(_I32LPx)
+typedef long intpointer_t;
+typedef unsigned long uintpointer_t;
+#else
+typedef int intpointer_t;
+typedef unsigned int uintpointer_t;
+#endif
+
+MOD_OPEN_DECL(ahdlc_open);
+MOD_CLOSE_DECL(ahdlc_close);
+static int ahdlc_wput __P((queue_t *, mblk_t *));
+static int ahdlc_rput __P((queue_t *, mblk_t *));
+static void ahdlc_encode __P((queue_t *, mblk_t *));
+static void ahdlc_decode __P((queue_t *, mblk_t *));
+static int msg_byte __P((mblk_t *, unsigned int));
+
+#if defined(SOL2)
+/*
+ * Don't send HDLC start flag is last transmit is within 1.5 seconds -
+ * FLAG_TIME is defined is microseconds
+ */
+#define FLAG_TIME 1500
+#define ABS(x) (x >= 0 ? x : (-x))
+#endif /* SOL2 */
+
+/*
+ * Extract byte i of message mp
+ */
+#define MSG_BYTE(mp, i) ((i) < (mp)->b_wptr - (mp)->b_rptr? (mp)->b_rptr[i]: \
+ msg_byte((mp), (i)))
+
+/*
+ * Is this LCP packet one we have to transmit using LCP defaults?
+ */
+#define LCP_USE_DFLT(mp) (1 <= (code = MSG_BYTE((mp), 4)) && code <= 7)
+
+/*
+ * Standard STREAMS declarations
+ */
+static struct module_info minfo = {
+ 0x7d23, "ppp_ahdl", 0, INFPSZ, 32768, 512
+};
+
+static struct qinit rinit = {
+ ahdlc_rput, NULL, ahdlc_open, ahdlc_close, NULL, &minfo, NULL
+};
+
+static struct qinit winit = {
+ ahdlc_wput, NULL, NULL, NULL, NULL, &minfo, NULL
+};
+
+#if defined(SVR4) && !defined(SOL2)
+int phdldevflag = 0;
+#define ppp_ahdlcinfo phdlinfo
+#endif /* defined(SVR4) && !defined(SOL2) */
+
+struct streamtab ppp_ahdlcinfo = {
+ &rinit, /* ptr to st_rdinit */
+ &winit, /* ptr to st_wrinit */
+ NULL, /* ptr to st_muxrinit */
+ NULL, /* ptr to st_muxwinit */
+#if defined(SUNOS4)
+ NULL /* ptr to ptr to st_modlist */
+#endif /* SUNOS4 */
+};
+
+#if defined(SUNOS4)
+int ppp_ahdlc_count = 0; /* open counter */
+#endif /* SUNOS4 */
+
+/*
+ * Per-stream state structure
+ */
+typedef struct ahdlc_state {
+#if defined(USE_MUTEX)
+ kmutex_t lock; /* lock for this structure */
+#endif /* USE_MUTEX */
+ int flags; /* link flags */
+ mblk_t *rx_buf; /* ptr to receive buffer */
+ int rx_buf_size; /* receive buffer size */
+ ushort_t infcs; /* calculated rx HDLC FCS */
+ u_int32_t xaccm[8]; /* 256-bit xmit ACCM */
+ u_int32_t raccm; /* 32-bit rcv ACCM */
+ int mtu; /* interface MTU */
+ int mru; /* link MRU */
+ int unit; /* current PPP unit number */
+ struct pppstat stats; /* statistic structure */
+#if defined(SOL2)
+ clock_t flag_time; /* time in usec between flags */
+ clock_t lbolt; /* last updated lbolt */
+#endif /* SOL2 */
+} ahdlc_state_t;
+
+/*
+ * Values for flags
+ */
+#define ESCAPED 0x100 /* last saw escape char on input */
+#define IFLUSH 0x200 /* flushing input due to error */
+
+/*
+ * RCV_B7_1, etc., defined in net/pppio.h, are stored in flags also.
+ */
+#define RCV_FLAGS (RCV_B7_1|RCV_B7_0|RCV_ODDP|RCV_EVNP)
+
+/*
+ * FCS lookup table as calculated by genfcstab.
+ */
+static u_short fcstab[256] = {
+ 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
+ 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
+ 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
+ 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
+ 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
+ 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
+ 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
+ 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
+ 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
+ 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
+ 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
+ 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
+ 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
+ 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
+ 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
+ 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
+ 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
+ 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
+ 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
+ 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
+ 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
+ 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
+ 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
+ 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
+ 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
+ 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
+ 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
+ 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
+ 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
+ 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
+ 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
+ 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
+};
+
+static u_int32_t paritytab[8] =
+{
+ 0x96696996, 0x69969669, 0x69969669, 0x96696996,
+ 0x69969669, 0x96696996, 0x96696996, 0x69969669
+};
+
+/*
+ * STREAMS module open (entry) point
+ */
+MOD_OPEN(ahdlc_open)
+{
+ ahdlc_state_t *state;
+
+ /*
+ * Return if it's already opened
+ */
+ if (q->q_ptr) {
+ return 0;
+ }
+
+ /*
+ * This can only be opened as a module
+ */
+ if (sflag != MODOPEN) {
+ return 0;
+ }
+
+ state = (ahdlc_state_t *) ALLOC_NOSLEEP(sizeof(ahdlc_state_t));
+ if (state == 0)
+ OPEN_ERROR(ENOSR);
+ bzero((caddr_t) state, sizeof(ahdlc_state_t));
+
+ q->q_ptr = (caddr_t) state;
+ WR(q)->q_ptr = (caddr_t) state;
+
+#if defined(USE_MUTEX)
+ mutex_init(&state->lock, NULL, MUTEX_DEFAULT, NULL);
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+
+ state->xaccm[0] = ~0; /* escape 0x00 through 0x1f */
+ state->xaccm[3] = 0x60000000; /* escape 0x7d and 0x7e */
+ state->mru = PPP_MRU; /* default of 1500 bytes */
+#if defined(SOL2)
+ state->flag_time = drv_usectohz(FLAG_TIME);
+#endif /* SOL2 */
+
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+
+#if defined(SUNOS4)
+ ppp_ahdlc_count++;
+#endif /* SUNOS4 */
+
+ qprocson(q);
+
+ return 0;
+}
+
+/*
+ * STREAMS module close (exit) point
+ */
+MOD_CLOSE(ahdlc_close)
+{
+ ahdlc_state_t *state;
+
+ qprocsoff(q);
+
+ state = (ahdlc_state_t *) q->q_ptr;
+
+ if (state == 0) {
+ DPRINT("state == 0 in ahdlc_close\n");
+ return 0;
+ }
+
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+
+ if (state->rx_buf != 0) {
+ freemsg(state->rx_buf);
+ state->rx_buf = 0;
+ }
+
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+ mutex_destroy(&state->lock);
+#endif /* USE_MUTEX */
+
+ FREE(q->q_ptr, sizeof(ahdlc_state_t));
+ q->q_ptr = NULL;
+ OTHERQ(q)->q_ptr = NULL;
+
+#if defined(SUNOS4)
+ if (ppp_ahdlc_count)
+ ppp_ahdlc_count--;
+#endif /* SUNOS4 */
+
+ return 0;
+}
+
+/*
+ * Write side put routine
+ */
+static int
+ahdlc_wput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ ahdlc_state_t *state;
+ struct iocblk *iop;
+ int error;
+ mblk_t *np;
+ struct ppp_stats *psp;
+
+ state = (ahdlc_state_t *) q->q_ptr;
+ if (state == 0) {
+ DPRINT("state == 0 in ahdlc_wput\n");
+ freemsg(mp);
+ return 0;
+ }
+
+ switch (mp->b_datap->db_type) {
+ case M_DATA:
+ /*
+ * A data packet - do character-stuffing and FCS, and
+ * send it onwards.
+ */
+ ahdlc_encode(q, mp);
+ freemsg(mp);
+ break;
+
+ case M_IOCTL:
+ iop = (struct iocblk *) mp->b_rptr;
+ error = EINVAL;
+ switch (iop->ioc_cmd) {
+ case PPPIO_XACCM:
+ if ((iop->ioc_count < sizeof(u_int32_t)) ||
+ (iop->ioc_count > sizeof(ext_accm))) {
+ break;
+ }
+ if (mp->b_cont == 0) {
+ DPRINT1("ahdlc_wput/%d: PPPIO_XACCM b_cont = 0!\n", state->unit);
+ break;
+ }
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ bcopy((caddr_t)mp->b_cont->b_rptr, (caddr_t)state->xaccm,
+ iop->ioc_count);
+ state->xaccm[2] &= ~0x40000000; /* don't escape 0x5e */
+ state->xaccm[3] |= 0x60000000; /* do escape 0x7d, 0x7e */
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ iop->ioc_count = 0;
+ error = 0;
+ break;
+
+ case PPPIO_RACCM:
+ if (iop->ioc_count != sizeof(u_int32_t))
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("ahdlc_wput/%d: PPPIO_RACCM b_cont = 0!\n", state->unit);
+ break;
+ }
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ bcopy((caddr_t)mp->b_cont->b_rptr, (caddr_t)&state->raccm,
+ sizeof(u_int32_t));
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ iop->ioc_count = 0;
+ error = 0;
+ break;
+
+ case PPPIO_GCLEAN:
+ np = allocb(sizeof(int), BPRI_HI);
+ if (np == 0) {
+ error = ENOSR;
+ break;
+ }
+ if (mp->b_cont != 0)
+ freemsg(mp->b_cont);
+ mp->b_cont = np;
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ *(int *)np->b_wptr = state->flags & RCV_FLAGS;
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ np->b_wptr += sizeof(int);
+ iop->ioc_count = sizeof(int);
+ error = 0;
+ break;
+
+ case PPPIO_GETSTAT:
+ np = allocb(sizeof(struct ppp_stats), BPRI_HI);
+ if (np == 0) {
+ error = ENOSR;
+ break;
+ }
+ if (mp->b_cont != 0)
+ freemsg(mp->b_cont);
+ mp->b_cont = np;
+ psp = (struct ppp_stats *) np->b_wptr;
+ np->b_wptr += sizeof(struct ppp_stats);
+ bzero((caddr_t)psp, sizeof(struct ppp_stats));
+ psp->p = state->stats;
+ iop->ioc_count = sizeof(struct ppp_stats);
+ error = 0;
+ break;
+
+ case PPPIO_LASTMOD:
+ /* we knew this anyway */
+ error = 0;
+ break;
+
+ default:
+ error = -1;
+ break;
+ }
+
+ if (error < 0)
+ putnext(q, mp);
+ else if (error == 0) {
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+ } else {
+ mp->b_datap->db_type = M_IOCNAK;
+ iop->ioc_count = 0;
+ iop->ioc_error = error;
+ qreply(q, mp);
+ }
+ break;
+
+ case M_CTL:
+ switch (*mp->b_rptr) {
+ case PPPCTL_MTU:
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ state->mtu = ((unsigned short *)mp->b_rptr)[1];
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ freemsg(mp);
+ break;
+ case PPPCTL_MRU:
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ state->mru = ((unsigned short *)mp->b_rptr)[1];
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ freemsg(mp);
+ break;
+ case PPPCTL_UNIT:
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ state->unit = mp->b_rptr[1];
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ break;
+ default:
+ putnext(q, mp);
+ }
+ break;
+
+ default:
+ putnext(q, mp);
+ }
+
+ return 0;
+}
+
+/*
+ * Read side put routine
+ */
+static int
+ahdlc_rput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ ahdlc_state_t *state;
+
+ state = (ahdlc_state_t *) q->q_ptr;
+ if (state == 0) {
+ DPRINT("state == 0 in ahdlc_rput\n");
+ freemsg(mp);
+ return 0;
+ }
+
+ switch (mp->b_datap->db_type) {
+ case M_DATA:
+ ahdlc_decode(q, mp);
+ freemsg(mp);
+ break;
+
+ case M_HANGUP:
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+ if (state->rx_buf != 0) {
+ /* XXX would like to send this up for debugging */
+ freemsg(state->rx_buf);
+ state->rx_buf = 0;
+ }
+ state->flags = IFLUSH;
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ putnext(q, mp);
+ break;
+
+ default:
+ putnext(q, mp);
+ }
+ return 0;
+}
+
+/*
+ * Extract bit c from map m, to determine if c needs to be escaped
+ */
+#define IN_TX_MAP(c, m) ((m)[(c) >> 5] & (1 << ((c) & 0x1f)))
+
+static void
+ahdlc_encode(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ ahdlc_state_t *state;
+ u_int32_t *xaccm, loc_xaccm[8];
+ ushort_t fcs;
+ size_t outmp_len;
+ mblk_t *outmp, *tmp;
+ uchar_t *dp, fcs_val;
+ int is_lcp, code;
+#if defined(SOL2)
+ clock_t lbolt;
+#endif /* SOL2 */
+
+ if (msgdsize(mp) < 4) {
+ return;
+ }
+
+ state = (ahdlc_state_t *)q->q_ptr;
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+
+ /*
+ * Allocate an output buffer large enough to handle a case where all
+ * characters need to be escaped
+ */
+ outmp_len = (msgdsize(mp) << 1) + /* input block x 2 */
+ (sizeof(fcs) << 2) + /* HDLC FCS x 4 */
+ (sizeof(uchar_t) << 1); /* HDLC flags x 2 */
+
+ outmp = allocb(outmp_len, BPRI_MED);
+ if (outmp == NULL) {
+ state->stats.ppp_oerrors++;
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+ putctl1(RD(q)->q_next, M_CTL, PPPCTL_OERROR);
+ return;
+ }
+
+#if defined(SOL2)
+ /*
+ * Check if our last transmit happenned within flag_time, using
+ * the system's LBOLT value in clock ticks
+ */
+ if (drv_getparm(LBOLT, &lbolt) != -1) {
+ if (ABS((clock_t)lbolt - state->lbolt) > state->flag_time) {
+ *outmp->b_wptr++ = PPP_FLAG;
+ }
+ state->lbolt = lbolt;
+ } else {
+ *outmp->b_wptr++ = PPP_FLAG;
+ }
+#else
+ /*
+ * If the driver below still has a message to process, skip the
+ * HDLC flag, otherwise, put one in the beginning
+ */
+ if (qsize(q->q_next) == 0) {
+ *outmp->b_wptr++ = PPP_FLAG;
+ }
+#endif
+
+ /*
+ * All control characters must be escaped for LCP packets with code
+ * values between 1 (Conf-Req) and 7 (Code-Rej).
+ */
+ is_lcp = ((MSG_BYTE(mp, 0) == PPP_ALLSTATIONS) &&
+ (MSG_BYTE(mp, 1) == PPP_UI) &&
+ (MSG_BYTE(mp, 2) == (PPP_LCP >> 8)) &&
+ (MSG_BYTE(mp, 3) == (PPP_LCP & 0xff)) &&
+ LCP_USE_DFLT(mp));
+
+ xaccm = state->xaccm;
+ if (is_lcp) {
+ bcopy((caddr_t)state->xaccm, (caddr_t)loc_xaccm, sizeof(loc_xaccm));
+ loc_xaccm[0] = ~0; /* force escape on 0x00 through 0x1f */
+ xaccm = loc_xaccm;
+ }
+
+ fcs = PPP_INITFCS; /* Initial FCS is 0xffff */
+
+ /*
+ * Process this block and the rest (if any) attached to the this one
+ */
+ for (tmp = mp; tmp; tmp = tmp->b_cont) {
+ if (tmp->b_datap->db_type == M_DATA) {
+ for (dp = tmp->b_rptr; dp < tmp->b_wptr; dp++) {
+ fcs = PPP_FCS(fcs, *dp);
+ if (IN_TX_MAP(*dp, xaccm)) {
+ *outmp->b_wptr++ = PPP_ESCAPE;
+ *outmp->b_wptr++ = *dp ^ PPP_TRANS;
+ } else {
+ *outmp->b_wptr++ = *dp;
+ }
+ }
+ } else {
+ continue; /* skip if db_type is something other than M_DATA */
+ }
+ }
+
+ /*
+ * Append the HDLC FCS, making sure that escaping is done on any
+ * necessary bytes
+ */
+ fcs_val = (fcs ^ 0xffff) & 0xff;
+ if (IN_TX_MAP(fcs_val, xaccm)) {
+ *outmp->b_wptr++ = PPP_ESCAPE;
+ *outmp->b_wptr++ = fcs_val ^ PPP_TRANS;
+ } else {
+ *outmp->b_wptr++ = fcs_val;
+ }
+
+ fcs_val = ((fcs ^ 0xffff) >> 8) & 0xff;
+ if (IN_TX_MAP(fcs_val, xaccm)) {
+ *outmp->b_wptr++ = PPP_ESCAPE;
+ *outmp->b_wptr++ = fcs_val ^ PPP_TRANS;
+ } else {
+ *outmp->b_wptr++ = fcs_val;
+ }
+
+ /*
+ * And finally, append the HDLC flag, and send it away
+ */
+ *outmp->b_wptr++ = PPP_FLAG;
+
+ state->stats.ppp_obytes += msgdsize(outmp);
+ state->stats.ppp_opackets++;
+
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+
+ putnext(q, outmp);
+ return;
+}
+
+/*
+ * Checks the 32-bit receive ACCM to see if the byte needs un-escaping
+ */
+#define IN_RX_MAP(c, m) ((((unsigned int) (uchar_t) (c)) < 0x20) && \
+ (m) & (1 << (c)))
+
+
+/*
+ * Process received characters.
+ */
+static void
+ahdlc_decode(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ ahdlc_state_t *state;
+ mblk_t *om;
+ uchar_t *dp;
+ ushort_t fcs;
+#if defined(SOL2)
+ mblk_t *zmp;
+#endif /* SOL2 */
+
+#if defined(SOL2)
+ /*
+ * In case the driver (or something below) doesn't send
+ * data upstream in one message block, concatenate everything
+ */
+ if (!((mp->b_wptr - mp->b_rptr == msgdsize(mp)) &&
+ ((intpointer_t)mp->b_rptr % sizeof(intpointer_t) == 0))) {
+
+ zmp = msgpullup(mp, -1);
+ freemsg(mp);
+ mp = zmp;
+ if (mp == 0)
+ return;
+ }
+#endif /* SOL2 */
+
+ state = (ahdlc_state_t *) q->q_ptr;
+
+#if defined(USE_MUTEX)
+ mutex_enter(&state->lock);
+#endif /* USE_MUTEX */
+
+ state->stats.ppp_ibytes += msgdsize(mp);
+
+ for (dp = mp->b_rptr; dp < mp->b_wptr; dp++) {
+
+ /*
+ * This should detect the lack of 8-bit communication channel
+ * which is necessary for PPP to work. In addition, it also
+ * checks on the parity.
+ */
+ if (*dp & 0x80)
+ state->flags |= RCV_B7_1;
+ else
+ state->flags |= RCV_B7_0;
+
+ if (paritytab[*dp >> 5] & (1 << (*dp & 0x1f)))
+ state->flags |= RCV_ODDP;
+ else
+ state->flags |= RCV_EVNP;
+
+ /*
+ * So we have a HDLC flag ...
+ */
+ if (*dp == PPP_FLAG) {
+
+ /*
+ * If we think that it marks the beginning of the frame,
+ * then continue to process the next octects
+ */
+ if ((state->flags & IFLUSH) ||
+ (state->rx_buf == 0) ||
+ (msgdsize(state->rx_buf) == 0)) {
+
+ state->flags &= ~IFLUSH;
+ continue;
+ }
+
+ /*
+ * We get here because the above condition isn't true,
+ * in which case the HDLC flag was there to mark the end
+ * of the frame (or so we think)
+ */
+ om = state->rx_buf;
+
+ if (state->infcs == PPP_GOODFCS) {
+ state->stats.ppp_ipackets++;
+ adjmsg(om, -PPP_FCSLEN);
+ putnext(q, om);
+ } else {
+ DPRINT2("ppp%d: bad fcs (len=%d)\n",
+ state->unit, msgdsize(state->rx_buf));
+ freemsg(state->rx_buf);
+ state->flags &= ~(IFLUSH | ESCAPED);
+ state->stats.ppp_ierrors++;
+ putctl1(q->q_next, M_CTL, PPPCTL_IERROR);
+ }
+
+ state->rx_buf = 0;
+ continue;
+ }
+
+ if (state->flags & IFLUSH) {
+ continue;
+ }
+
+ /*
+ * Allocate a receive buffer, large enough to store a frame (after
+ * un-escaping) of at least 1500 octets. If MRU is negotiated to
+ * be more than the default, then allocate that much. In addition,
+ * we add an extra 32-bytes for a fudge factor
+ */
+ if (state->rx_buf == 0) {
+ state->rx_buf_size = (state->mru < PPP_MRU ? PPP_MRU : state->mru);
+ state->rx_buf_size += (sizeof(u_int32_t) << 3);
+ state->rx_buf = allocb(state->rx_buf_size, BPRI_MED);
+
+ /*
+ * If allocation fails, try again on the next frame
+ */
+ if (state->rx_buf == 0) {
+ state->flags |= IFLUSH;
+ continue;
+ }
+ state->flags &= ~(IFLUSH | ESCAPED);
+ state->infcs = PPP_INITFCS;
+ }
+
+ if (*dp == PPP_ESCAPE) {
+ state->flags |= ESCAPED;
+ continue;
+ }
+
+ /*
+ * Make sure we un-escape the necessary characters, as well as the
+ * ones in our receive async control character map
+ */
+ if (state->flags & ESCAPED) {
+ *dp ^= PPP_TRANS;
+ state->flags &= ~ESCAPED;
+ } else if (IN_RX_MAP(*dp, state->raccm))
+ continue;
+
+ /*
+ * Unless the peer lied to us about the negotiated MRU, we should
+ * never get a frame which is too long. If it happens, toss it away
+ * and grab the next incoming one
+ */
+ if (msgdsize(state->rx_buf) < state->rx_buf_size) {
+ state->infcs = PPP_FCS(state->infcs, *dp);
+ *state->rx_buf->b_wptr++ = *dp;
+ } else {
+ DPRINT2("ppp%d: frame too long (%d)\n",
+ state->unit, msgdsize(state->rx_buf));
+ freemsg(state->rx_buf);
+ state->rx_buf = 0;
+ state->flags |= IFLUSH;
+ }
+ }
+
+#if defined(USE_MUTEX)
+ mutex_exit(&state->lock);
+#endif /* USE_MUTEX */
+}
+
+static int
+msg_byte(mp, i)
+ mblk_t *mp;
+ unsigned int i;
+{
+ while (mp != 0 && i >= mp->b_wptr - mp->b_rptr)
+ mp = mp->b_cont;
+ if (mp == 0)
+ return -1;
+ return mp->b_rptr[i];
+}
diff --git a/mdk-stage1/ppp/solaris/ppp_ahdlc_mod.c b/mdk-stage1/ppp/solaris/ppp_ahdlc_mod.c
new file mode 100644
index 000000000..f81be8abb
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp_ahdlc_mod.c
@@ -0,0 +1,49 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/conf.h>
+#include <sys/modctl.h>
+#include <sys/sunddi.h>
+
+extern struct streamtab ppp_ahdlcinfo;
+
+static struct fmodsw fsw = {
+ "ppp_ahdl",
+ &ppp_ahdlcinfo,
+ D_NEW | D_MP | D_MTQPAIR
+};
+
+extern struct mod_ops mod_strmodops;
+
+static struct modlstrmod modlstrmod = {
+ &mod_strmodops,
+ "PPP async HDLC module",
+ &fsw
+};
+
+static struct modlinkage modlinkage = {
+ MODREV_1,
+ (void *) &modlstrmod,
+ NULL
+};
+
+/*
+ * Entry points for modloading.
+ */
+int
+_init(void)
+{
+ return mod_install(&modlinkage);
+}
+
+int
+_fini(void)
+{
+ return mod_remove(&modlinkage);
+}
+
+int
+_info(mip)
+ struct modinfo *mip;
+{
+ return mod_info(&modlinkage, mip);
+}
diff --git a/mdk-stage1/ppp/solaris/ppp_comp.c b/mdk-stage1/ppp/solaris/ppp_comp.c
new file mode 100644
index 000000000..f6eef5ab1
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp_comp.c
@@ -0,0 +1,1126 @@
+/*
+ * ppp_comp.c - STREAMS module for kernel-level compression and CCP support.
+ *
+ * Copyright (c) 1994 The Australian National University.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, provided that the above copyright
+ * notice appears in all copies. This software is provided without any
+ * warranty, express or implied. The Australian National University
+ * makes no representations about the suitability of this software for
+ * any purpose.
+ *
+ * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
+ * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * THE AUSTRALIAN NATIONAL UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
+ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
+ * OR MODIFICATIONS.
+ *
+ * $Id$
+ */
+
+/*
+ * This file is used under SVR4, Solaris 2, SunOS 4, and Digital UNIX.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <sys/stream.h>
+
+#ifdef SVR4
+#include <sys/conf.h>
+#include <sys/cmn_err.h>
+#include <sys/ddi.h>
+#else
+#include <sys/user.h>
+#ifdef __osf__
+#include <sys/cmn_err.h>
+#endif
+#endif /* SVR4 */
+
+#include <net/ppp_defs.h>
+#include <net/pppio.h>
+#include "ppp_mod.h"
+
+#ifdef __osf__
+#include <sys/mbuf.h>
+#include <sys/protosw.h>
+#endif
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <net/vjcompress.h>
+
+#define PACKETPTR mblk_t *
+#include <net/ppp-comp.h>
+
+MOD_OPEN_DECL(ppp_comp_open);
+MOD_CLOSE_DECL(ppp_comp_close);
+static int ppp_comp_rput __P((queue_t *, mblk_t *));
+static int ppp_comp_rsrv __P((queue_t *));
+static int ppp_comp_wput __P((queue_t *, mblk_t *));
+static int ppp_comp_wsrv __P((queue_t *));
+static void ppp_comp_ccp __P((queue_t *, mblk_t *, int));
+static int msg_byte __P((mblk_t *, unsigned int));
+
+/* Extract byte i of message mp. */
+#define MSG_BYTE(mp, i) ((i) < (mp)->b_wptr - (mp)->b_rptr? (mp)->b_rptr[i]: \
+ msg_byte((mp), (i)))
+
+/* Is this LCP packet one we have to transmit using LCP defaults? */
+#define LCP_USE_DFLT(mp) (1 <= (code = MSG_BYTE((mp), 4)) && code <= 7)
+
+#define PPP_COMP_ID 0xbadf
+static struct module_info minfo = {
+#ifdef PRIOQ
+ PPP_COMP_ID, "ppp_comp", 0, INFPSZ, 16512, 16384,
+#else
+ PPP_COMP_ID, "ppp_comp", 0, INFPSZ, 16384, 4096,
+#endif
+};
+
+static struct qinit r_init = {
+ ppp_comp_rput, ppp_comp_rsrv, ppp_comp_open, ppp_comp_close,
+ NULL, &minfo, NULL
+};
+
+static struct qinit w_init = {
+ ppp_comp_wput, ppp_comp_wsrv, NULL, NULL, NULL, &minfo, NULL
+};
+
+#if defined(SVR4) && !defined(SOL2)
+int pcmpdevflag = 0;
+#define ppp_compinfo pcmpinfo
+#endif
+struct streamtab ppp_compinfo = {
+ &r_init, &w_init, NULL, NULL
+};
+
+int ppp_comp_count; /* number of module instances in use */
+
+#ifdef __osf__
+
+static void ppp_comp_alloc __P((comp_state_t *));
+typedef struct memreq {
+ unsigned char comp_opts[20];
+ int cmd;
+ int thread_status;
+ char *returned_mem;
+} memreq_t;
+
+#endif
+
+typedef struct comp_state {
+ int flags;
+ int mru;
+ int mtu;
+ int unit;
+ struct compressor *xcomp;
+ void *xstate;
+ struct compressor *rcomp;
+ void *rstate;
+ struct vjcompress vj_comp;
+ int vj_last_ierrors;
+ struct pppstat stats;
+#ifdef __osf__
+ memreq_t memreq;
+ thread_t thread;
+#endif
+} comp_state_t;
+
+
+#ifdef __osf__
+extern task_t first_task;
+#endif
+
+/* Bits in flags are as defined in pppio.h. */
+#define CCP_ERR (CCP_ERROR | CCP_FATALERROR)
+#define LAST_MOD 0x1000000 /* no ppp modules below us */
+#define DBGLOG 0x2000000 /* log debugging stuff */
+
+#define MAX_IPHDR 128 /* max TCP/IP header size */
+#define MAX_VJHDR 20 /* max VJ compressed header size (?) */
+
+#undef MIN /* just in case */
+#define MIN(a, b) ((a) < (b)? (a): (b))
+
+/*
+ * List of compressors we know about.
+ */
+
+#if DO_BSD_COMPRESS
+extern struct compressor ppp_bsd_compress;
+#endif
+#if DO_DEFLATE
+extern struct compressor ppp_deflate, ppp_deflate_draft;
+#endif
+
+struct compressor *ppp_compressors[] = {
+#if DO_BSD_COMPRESS
+ &ppp_bsd_compress,
+#endif
+#if DO_DEFLATE
+ &ppp_deflate,
+ &ppp_deflate_draft,
+#endif
+ NULL
+};
+
+/*
+ * STREAMS module entry points.
+ */
+MOD_OPEN(ppp_comp_open)
+{
+ comp_state_t *cp;
+#ifdef __osf__
+ thread_t thread;
+#endif
+
+ if (q->q_ptr == NULL) {
+ cp = (comp_state_t *) ALLOC_SLEEP(sizeof(comp_state_t));
+ if (cp == NULL)
+ OPEN_ERROR(ENOSR);
+ bzero((caddr_t)cp, sizeof(comp_state_t));
+ WR(q)->q_ptr = q->q_ptr = (caddr_t) cp;
+ cp->mru = PPP_MRU;
+ cp->mtu = PPP_MTU;
+ cp->xstate = NULL;
+ cp->rstate = NULL;
+ vj_compress_init(&cp->vj_comp, -1);
+#ifdef __osf__
+ if (!(thread = kernel_thread_w_arg(first_task, ppp_comp_alloc, (void *)cp)))
+ OPEN_ERROR(ENOSR);
+ cp->thread = thread;
+#endif
+ ++ppp_comp_count;
+ qprocson(q);
+ }
+ return 0;
+}
+
+MOD_CLOSE(ppp_comp_close)
+{
+ comp_state_t *cp;
+
+ qprocsoff(q);
+ cp = (comp_state_t *) q->q_ptr;
+ if (cp != NULL) {
+ if (cp->xstate != NULL)
+ (*cp->xcomp->comp_free)(cp->xstate);
+ if (cp->rstate != NULL)
+ (*cp->rcomp->decomp_free)(cp->rstate);
+#ifdef __osf__
+ if (!cp->thread)
+ printf("ppp_comp_close: NULL thread!\n");
+ else
+ thread_terminate(cp->thread);
+#endif
+ FREE(cp, sizeof(comp_state_t));
+ q->q_ptr = NULL;
+ OTHERQ(q)->q_ptr = NULL;
+ --ppp_comp_count;
+ }
+ return 0;
+}
+
+#ifdef __osf__
+
+/* thread for calling back to a compressor's memory allocator
+ * Needed for Digital UNIX since it's VM can't handle requests
+ * for large amounts of memory without blocking. The thread
+ * provides a context in which we can call a memory allocator
+ * that may block.
+ */
+static void
+ppp_comp_alloc(comp_state_t *cp)
+{
+ int len, cmd;
+ unsigned char *compressor_options;
+ thread_t thread;
+ void *(*comp_allocator)();
+
+
+#if defined(MAJOR_VERSION) && (MAJOR_VERSION <= 2)
+
+ /* In 2.x and earlier the argument gets passed
+ * in the thread structure itself. Yuck.
+ */
+ thread = current_thread();
+ cp = thread->reply_port;
+ thread->reply_port = PORT_NULL;
+
+#endif
+
+ for (;;) {
+ assert_wait((vm_offset_t)&cp->memreq.thread_status, TRUE);
+ thread_block();
+
+ if (thread_should_halt(current_thread()))
+ thread_halt_self();
+ cmd = cp->memreq.cmd;
+ compressor_options = &cp->memreq.comp_opts[0];
+ len = compressor_options[1];
+ if (cmd == PPPIO_XCOMP) {
+ cp->memreq.returned_mem = cp->xcomp->comp_alloc(compressor_options, len);
+ if (!cp->memreq.returned_mem) {
+ cp->memreq.thread_status = ENOSR;
+ } else {
+ cp->memreq.thread_status = 0;
+ }
+ } else {
+ cp->memreq.returned_mem = cp->rcomp->decomp_alloc(compressor_options, len);
+ if (!cp->memreq.returned_mem) {
+ cp->memreq.thread_status = ENOSR;
+ } else {
+ cp->memreq.thread_status = 0;
+ }
+ }
+ }
+}
+
+#endif /* __osf__ */
+
+/* here's the deal with memory allocation under Digital UNIX.
+ * Some other may also benefit from this...
+ * We can't ask for huge chunks of memory in a context where
+ * the caller can't be put to sleep (like, here.) The alloc
+ * is likely to fail. Instead we do this: the first time we
+ * get called, kick off a thread to do the allocation. Return
+ * immediately to the caller with EAGAIN, as an indication that
+ * they should send down the ioctl again. By the time the
+ * second call comes in it's likely that the memory allocation
+ * thread will have returned with the requested memory. We will
+ * continue to return EAGAIN however until the thread has completed.
+ * When it has, we return zero (and the memory) if the allocator
+ * was successful and ENOSR otherwise.
+ *
+ * Callers of the RCOMP and XCOMP ioctls are encouraged (but not
+ * required) to loop for some number of iterations with a small
+ * delay in the loop body (for instance a 1/10-th second "sleep"
+ * via select.)
+ */
+static int
+ppp_comp_wput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ struct iocblk *iop;
+ comp_state_t *cp;
+ int error, len, n;
+ int flags, mask;
+ mblk_t *np;
+ struct compressor **comp;
+ struct ppp_stats *psp;
+ struct ppp_comp_stats *csp;
+ unsigned char *opt_data;
+ int nxslots, nrslots;
+
+ cp = (comp_state_t *) q->q_ptr;
+ if (cp == 0) {
+ DPRINT("cp == 0 in ppp_comp_wput\n");
+ freemsg(mp);
+ return 0;
+ }
+
+ switch (mp->b_datap->db_type) {
+
+ case M_DATA:
+ putq(q, mp);
+ break;
+
+ case M_IOCTL:
+ iop = (struct iocblk *) mp->b_rptr;
+ error = EINVAL;
+ switch (iop->ioc_cmd) {
+
+ case PPPIO_CFLAGS:
+ /* set/get CCP state */
+ if (iop->ioc_count != 2 * sizeof(int))
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("ppp_comp_wput/%d: PPPIO_CFLAGS b_cont = 0!\n", cp->unit);
+ break;
+ }
+ flags = ((int *) mp->b_cont->b_rptr)[0];
+ mask = ((int *) mp->b_cont->b_rptr)[1];
+ cp->flags = (cp->flags & ~mask) | (flags & mask);
+ if ((mask & CCP_ISOPEN) && (flags & CCP_ISOPEN) == 0) {
+ if (cp->xstate != NULL) {
+ (*cp->xcomp->comp_free)(cp->xstate);
+ cp->xstate = NULL;
+ }
+ if (cp->rstate != NULL) {
+ (*cp->rcomp->decomp_free)(cp->rstate);
+ cp->rstate = NULL;
+ }
+ cp->flags &= ~CCP_ISUP;
+ }
+ error = 0;
+ iop->ioc_count = sizeof(int);
+ ((int *) mp->b_cont->b_rptr)[0] = cp->flags;
+ mp->b_cont->b_wptr = mp->b_cont->b_rptr + sizeof(int);
+ break;
+
+ case PPPIO_VJINIT:
+ /*
+ * Initialize VJ compressor/decompressor
+ */
+ if (iop->ioc_count != 2)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("ppp_comp_wput/%d: PPPIO_VJINIT b_cont = 0!\n", cp->unit);
+ break;
+ }
+ nxslots = mp->b_cont->b_rptr[0] + 1;
+ nrslots = mp->b_cont->b_rptr[1] + 1;
+ if (nxslots > MAX_STATES || nrslots > MAX_STATES)
+ break;
+ vj_compress_init(&cp->vj_comp, nxslots);
+ cp->vj_last_ierrors = cp->stats.ppp_ierrors;
+ error = 0;
+ iop->ioc_count = 0;
+ break;
+
+ case PPPIO_XCOMP:
+ case PPPIO_RCOMP:
+ if (iop->ioc_count <= 0)
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("ppp_comp_wput/%d: PPPIO_[XR]COMP b_cont = 0!\n", cp->unit);
+ break;
+ }
+ opt_data = mp->b_cont->b_rptr;
+ len = mp->b_cont->b_wptr - opt_data;
+ if (len > iop->ioc_count)
+ len = iop->ioc_count;
+ if (opt_data[1] < 2 || opt_data[1] > len)
+ break;
+ for (comp = ppp_compressors; *comp != NULL; ++comp)
+ if ((*comp)->compress_proto == opt_data[0]) {
+ /* here's the handler! */
+ error = 0;
+#ifndef __osf__
+ if (iop->ioc_cmd == PPPIO_XCOMP) {
+ /* A previous call may have fetched memory for a compressor
+ * that's now being retired or reset. Free it using it's
+ * mechanism for freeing stuff.
+ */
+ if (cp->xstate != NULL) {
+ (*cp->xcomp->comp_free)(cp->xstate);
+ cp->xstate = NULL;
+ }
+ cp->xcomp = *comp;
+ cp->xstate = (*comp)->comp_alloc(opt_data, len);
+ if (cp->xstate == NULL)
+ error = ENOSR;
+ } else {
+ if (cp->rstate != NULL) {
+ (*cp->rcomp->decomp_free)(cp->rstate);
+ cp->rstate = NULL;
+ }
+ cp->rcomp = *comp;
+ cp->rstate = (*comp)->decomp_alloc(opt_data, len);
+ if (cp->rstate == NULL)
+ error = ENOSR;
+ }
+#else
+ if ((error = cp->memreq.thread_status) != EAGAIN)
+ if (iop->ioc_cmd == PPPIO_XCOMP) {
+ if (cp->xstate) {
+ (*cp->xcomp->comp_free)(cp->xstate);
+ cp->xstate = 0;
+ }
+ /* sanity check for compressor options
+ */
+ if (sizeof (cp->memreq.comp_opts) < len) {
+ printf("can't handle options for compressor %d (%d)\n", opt_data[0],
+ opt_data[1]);
+ cp->memreq.thread_status = ENOSR;
+ cp->memreq.returned_mem = 0;
+ }
+ /* fill in request for the thread and kick it off
+ */
+ if (cp->memreq.thread_status == 0 && !cp->memreq.returned_mem) {
+ bcopy(opt_data, cp->memreq.comp_opts, len);
+ cp->memreq.cmd = PPPIO_XCOMP;
+ cp->xcomp = *comp;
+ error = cp->memreq.thread_status = EAGAIN;
+ thread_wakeup((vm_offset_t)&cp->memreq.thread_status);
+ } else {
+ cp->xstate = cp->memreq.returned_mem;
+ cp->memreq.returned_mem = 0;
+ cp->memreq.thread_status = 0;
+ }
+ } else {
+ if (cp->rstate) {
+ (*cp->rcomp->decomp_free)(cp->rstate);
+ cp->rstate = NULL;
+ }
+ if (sizeof (cp->memreq.comp_opts) < len) {
+ printf("can't handle options for compressor %d (%d)\n", opt_data[0],
+ opt_data[1]);
+ cp->memreq.thread_status = ENOSR;
+ cp->memreq.returned_mem = 0;
+ }
+ if (cp->memreq.thread_status == 0 && !cp->memreq.returned_mem) {
+ bcopy(opt_data, cp->memreq.comp_opts, len);
+ cp->memreq.cmd = PPPIO_RCOMP;
+ cp->rcomp = *comp;
+ error = cp->memreq.thread_status = EAGAIN;
+ thread_wakeup((vm_offset_t)&cp->memreq.thread_status);
+ } else {
+ cp->rstate = cp->memreq.returned_mem;
+ cp->memreq.returned_mem = 0;
+ cp->memreq.thread_status = 0;
+ }
+ }
+#endif
+ break;
+ }
+ iop->ioc_count = 0;
+ break;
+
+ case PPPIO_GETSTAT:
+ if ((cp->flags & LAST_MOD) == 0) {
+ error = -1; /* let the ppp_ahdl module handle it */
+ break;
+ }
+ np = allocb(sizeof(struct ppp_stats), BPRI_HI);
+ if (np == 0) {
+ error = ENOSR;
+ break;
+ }
+ if (mp->b_cont != 0)
+ freemsg(mp->b_cont);
+ mp->b_cont = np;
+ psp = (struct ppp_stats *) np->b_wptr;
+ np->b_wptr += sizeof(struct ppp_stats);
+ iop->ioc_count = sizeof(struct ppp_stats);
+ psp->p = cp->stats;
+ psp->vj = cp->vj_comp.stats;
+ error = 0;
+ break;
+
+ case PPPIO_GETCSTAT:
+ np = allocb(sizeof(struct ppp_comp_stats), BPRI_HI);
+ if (np == 0) {
+ error = ENOSR;
+ break;
+ }
+ if (mp->b_cont != 0)
+ freemsg(mp->b_cont);
+ mp->b_cont = np;
+ csp = (struct ppp_comp_stats *) np->b_wptr;
+ np->b_wptr += sizeof(struct ppp_comp_stats);
+ iop->ioc_count = sizeof(struct ppp_comp_stats);
+ bzero((caddr_t)csp, sizeof(struct ppp_comp_stats));
+ if (cp->xstate != 0)
+ (*cp->xcomp->comp_stat)(cp->xstate, &csp->c);
+ if (cp->rstate != 0)
+ (*cp->rcomp->decomp_stat)(cp->rstate, &csp->d);
+ error = 0;
+ break;
+
+ case PPPIO_DEBUG:
+ if (iop->ioc_count != sizeof(int))
+ break;
+ if (mp->b_cont == 0) {
+ DPRINT1("ppp_comp_wput/%d: PPPIO_DEBUG b_cont = 0!\n", cp->unit);
+ break;
+ }
+ n = *(int *)mp->b_cont->b_rptr;
+ if (n == PPPDBG_LOG + PPPDBG_COMP) {
+ DPRINT1("ppp_comp%d: debug log enabled\n", cp->unit);
+ cp->flags |= DBGLOG;
+ error = 0;
+ iop->ioc_count = 0;
+ } else {
+ error = -1;
+ }
+ break;
+
+ case PPPIO_LASTMOD:
+ cp->flags |= LAST_MOD;
+ error = 0;
+ break;
+
+ default:
+ error = -1;
+ break;
+ }
+
+ if (error < 0)
+ putnext(q, mp);
+ else if (error == 0) {
+ mp->b_datap->db_type = M_IOCACK;
+ qreply(q, mp);
+ } else {
+ mp->b_datap->db_type = M_IOCNAK;
+ iop->ioc_error = error;
+ iop->ioc_count = 0;
+ qreply(q, mp);
+ }
+ break;
+
+ case M_CTL:
+ switch (*mp->b_rptr) {
+ case PPPCTL_MTU:
+ cp->mtu = ((unsigned short *)mp->b_rptr)[1];
+ break;
+ case PPPCTL_MRU:
+ cp->mru = ((unsigned short *)mp->b_rptr)[1];
+ break;
+ case PPPCTL_UNIT:
+ cp->unit = mp->b_rptr[1];
+ break;
+ }
+ putnext(q, mp);
+ break;
+
+ default:
+ putnext(q, mp);
+ }
+
+ return 0;
+}
+
+static int
+ppp_comp_wsrv(q)
+ queue_t *q;
+{
+ mblk_t *mp, *cmp = NULL;
+ comp_state_t *cp;
+ int len, proto, type, hlen, code;
+ struct ip *ip;
+ unsigned char *vjhdr, *dp;
+
+ cp = (comp_state_t *) q->q_ptr;
+ if (cp == 0) {
+ DPRINT("cp == 0 in ppp_comp_wsrv\n");
+ return 0;
+ }
+
+ while ((mp = getq(q)) != 0) {
+ /* assert(mp->b_datap->db_type == M_DATA) */
+#ifdef PRIOQ
+ if (!bcanputnext(q,mp->b_band))
+#else
+ if (!canputnext(q))
+#endif PRIOQ
+ {
+ putbq(q, mp);
+ break;
+ }
+
+ /*
+ * First check the packet length and work out what the protocol is.
+ */
+ len = msgdsize(mp);
+ if (len < PPP_HDRLEN) {
+ DPRINT1("ppp_comp_wsrv: bogus short packet (%d)\n", len);
+ freemsg(mp);
+ cp->stats.ppp_oerrors++;
+ putctl1(RD(q)->q_next, M_CTL, PPPCTL_OERROR);
+ continue;
+ }
+ proto = (MSG_BYTE(mp, 2) << 8) + MSG_BYTE(mp, 3);
+
+ /*
+ * Make sure we've got enough data in the first mblk
+ * and that we are its only user.
+ */
+ if (proto == PPP_CCP)
+ hlen = len;
+ else if (proto == PPP_IP)
+ hlen = PPP_HDRLEN + MAX_IPHDR;
+ else
+ hlen = PPP_HDRLEN;
+ if (hlen > len)
+ hlen = len;
+ if (mp->b_wptr < mp->b_rptr + hlen || mp->b_datap->db_ref > 1) {
+ PULLUP(mp, hlen);
+ if (mp == 0) {
+ DPRINT1("ppp_comp_wsrv: pullup failed (%d)\n", hlen);
+ cp->stats.ppp_oerrors++;
+ putctl1(RD(q)->q_next, M_CTL, PPPCTL_OERROR);
+ continue;
+ }
+ }
+
+ /*
+ * Do VJ compression if requested.
+ */
+ if (proto == PPP_IP && (cp->flags & COMP_VJC)) {
+ ip = (struct ip *) (mp->b_rptr + PPP_HDRLEN);
+ if (ip->ip_p == IPPROTO_TCP) {
+ type = vj_compress_tcp(ip, len - PPP_HDRLEN, &cp->vj_comp,
+ (cp->flags & COMP_VJCCID), &vjhdr);
+ switch (type) {
+ case TYPE_UNCOMPRESSED_TCP:
+ mp->b_rptr[3] = proto = PPP_VJC_UNCOMP;
+ break;
+ case TYPE_COMPRESSED_TCP:
+ dp = vjhdr - PPP_HDRLEN;
+ dp[1] = mp->b_rptr[1]; /* copy control field */
+ dp[0] = mp->b_rptr[0]; /* copy address field */
+ dp[2] = 0; /* set protocol field */
+ dp[3] = proto = PPP_VJC_COMP;
+ mp->b_rptr = dp;
+ break;
+ }
+ }
+ }
+
+ /*
+ * Do packet compression if enabled.
+ */
+ if (proto == PPP_CCP)
+ ppp_comp_ccp(q, mp, 0);
+ else if (proto != PPP_LCP && (cp->flags & CCP_COMP_RUN)
+ && cp->xstate != NULL) {
+ len = msgdsize(mp);
+ (*cp->xcomp->compress)(cp->xstate, &cmp, mp, len,
+ (cp->flags & CCP_ISUP? cp->mtu + PPP_HDRLEN: 0));
+ if (cmp != NULL) {
+#ifdef PRIOQ
+ cmp->b_band=mp->b_band;
+#endif PRIOQ
+ freemsg(mp);
+ mp = cmp;
+ }
+ }
+
+ /*
+ * Do address/control and protocol compression if enabled.
+ */
+ if ((cp->flags & COMP_AC)
+ && !(proto == PPP_LCP && LCP_USE_DFLT(mp))) {
+ mp->b_rptr += 2; /* drop the address & ctrl fields */
+ if (proto < 0x100 && (cp->flags & COMP_PROT))
+ ++mp->b_rptr; /* drop the high protocol byte */
+ } else if (proto < 0x100 && (cp->flags & COMP_PROT)) {
+ /* shuffle up the address & ctrl fields */
+ mp->b_rptr[2] = mp->b_rptr[1];
+ mp->b_rptr[1] = mp->b_rptr[0];
+ ++mp->b_rptr;
+ }
+
+ cp->stats.ppp_opackets++;
+ cp->stats.ppp_obytes += msgdsize(mp);
+ putnext(q, mp);
+ }
+
+ return 0;
+}
+
+static int
+ppp_comp_rput(q, mp)
+ queue_t *q;
+ mblk_t *mp;
+{
+ comp_state_t *cp;
+ struct iocblk *iop;
+ struct ppp_stats *psp;
+
+ cp = (comp_state_t *) q->q_ptr;
+ if (cp == 0) {
+ DPRINT("cp == 0 in ppp_comp_rput\n");
+ freemsg(mp);
+ return 0;
+ }
+
+ switch (mp->b_datap->db_type) {
+
+ case M_DATA:
+ putq(q, mp);
+ break;
+
+ case M_IOCACK:
+ iop = (struct iocblk *) mp->b_rptr;
+ switch (iop->ioc_cmd) {
+ case PPPIO_GETSTAT:
+ /*
+ * Catch this on the way back from the ppp_ahdl module
+ * so we can fill in the VJ stats.
+ */
+ if (mp->b_cont == 0 || iop->ioc_count != sizeof(struct ppp_stats))
+ break;
+ psp = (struct ppp_stats *) mp->b_cont->b_rptr;
+ psp->vj = cp->vj_comp.stats;
+ break;
+ }
+ putnext(q, mp);
+ break;
+
+ case M_CTL:
+ switch (mp->b_rptr[0]) {
+ case PPPCTL_IERROR:
+ ++cp->stats.ppp_ierrors;
+ break;
+ case PPPCTL_OERROR:
+ ++cp->stats.ppp_oerrors;
+ break;
+ }
+ putnext(q, mp);
+ break;
+
+ default:
+ putnext(q, mp);
+ }
+
+ return 0;
+}
+
+static int
+ppp_comp_rsrv(q)
+ queue_t *q;
+{
+ int proto, rv, i;
+ mblk_t *mp, *dmp = NULL, *np;
+ uchar_t *dp, *iphdr;
+ comp_state_t *cp;
+ int len, hlen, vjlen;
+ u_int iphlen;
+
+ cp = (comp_state_t *) q->q_ptr;
+ if (cp == 0) {
+ DPRINT("cp == 0 in ppp_comp_rsrv\n");
+ return 0;
+ }
+
+ while ((mp = getq(q)) != 0) {
+ /* assert(mp->b_datap->db_type == M_DATA) */
+ if (!canputnext(q)) {
+ putbq(q, mp);
+ break;
+ }
+
+ len = msgdsize(mp);
+ cp->stats.ppp_ibytes += len;
+ cp->stats.ppp_ipackets++;
+
+ /*
+ * First work out the protocol and where the PPP header ends.
+ */
+ i = 0;
+ proto = MSG_BYTE(mp, 0);
+ if (proto == PPP_ALLSTATIONS) {
+ i = 2;
+ proto = MSG_BYTE(mp, 2);
+ }
+ if ((proto & 1) == 0) {
+ ++i;
+ proto = (proto << 8) + MSG_BYTE(mp, i);
+ }
+ hlen = i + 1;
+
+ /*
+ * Now reconstruct a complete, contiguous PPP header at the
+ * start of the packet.
+ */
+ if (hlen < ((cp->flags & DECOMP_AC)? 0: 2)
+ + ((cp->flags & DECOMP_PROT)? 1: 2)) {
+ /* count these? */
+ goto bad;
+ }
+ if (mp->b_rptr + hlen > mp->b_wptr) {
+ adjmsg(mp, hlen); /* XXX check this call */
+ hlen = 0;
+ }
+ if (hlen != PPP_HDRLEN) {
+ /*
+ * We need to put some bytes on the front of the packet
+ * to make a full-length PPP header.
+ * If we can put them in *mp, we do, otherwise we
+ * tack another mblk on the front.
+ * XXX we really shouldn't need to carry around
+ * the address and control at this stage.
+ */
+ dp = mp->b_rptr + hlen - PPP_HDRLEN;
+ if (dp < mp->b_datap->db_base || mp->b_datap->db_ref > 1) {
+ np = allocb(PPP_HDRLEN, BPRI_MED);
+ if (np == 0)
+ goto bad;
+ np->b_cont = mp;
+ mp->b_rptr += hlen;
+ mp = np;
+ dp = mp->b_wptr;
+ mp->b_wptr += PPP_HDRLEN;
+ } else
+ mp->b_rptr = dp;
+
+ dp[0] = PPP_ALLSTATIONS;
+ dp[1] = PPP_UI;
+ dp[2] = proto >> 8;
+ dp[3] = proto;
+ }
+
+ /*
+ * Now see if we have a compressed packet to decompress,
+ * or a CCP packet to take notice of.
+ */
+ proto = PPP_PROTOCOL(mp->b_rptr);
+ if (proto == PPP_CCP) {
+ len = msgdsize(mp);
+ if (mp->b_wptr < mp->b_rptr + len) {
+ PULLUP(mp, len);
+ if (mp == 0)
+ goto bad;
+ }
+ ppp_comp_ccp(q, mp, 1);
+ } else if (proto == PPP_COMP) {
+ if ((cp->flags & CCP_ISUP)
+ && (cp->flags & CCP_DECOMP_RUN) && cp->rstate
+ && (cp->flags & CCP_ERR) == 0) {
+ rv = (*cp->rcomp->decompress)(cp->rstate, mp, &dmp);
+ switch (rv) {
+ case DECOMP_OK:
+ freemsg(mp);
+ mp = dmp;
+ if (mp == NULL) {
+ /* no error, but no packet returned either. */
+ continue;
+ }
+ break;
+ case DECOMP_ERROR:
+ cp->flags |= CCP_ERROR;
+ ++cp->stats.ppp_ierrors;
+ putctl1(q->q_next, M_CTL, PPPCTL_IERROR);
+ break;
+ case DECOMP_FATALERROR:
+ cp->flags |= CCP_FATALERROR;
+ ++cp->stats.ppp_ierrors;
+ putctl1(q->q_next, M_CTL, PPPCTL_IERROR);
+ break;
+ }
+ }
+ } else if (cp->rstate && (cp->flags & CCP_DECOMP_RUN)) {
+ (*cp->rcomp->incomp)(cp->rstate, mp);
+ }
+
+ /*
+ * Now do VJ decompression.
+ */
+ proto = PPP_PROTOCOL(mp->b_rptr);
+ if (proto == PPP_VJC_COMP || proto == PPP_VJC_UNCOMP) {
+ len = msgdsize(mp) - PPP_HDRLEN;
+ if ((cp->flags & DECOMP_VJC) == 0 || len <= 0)
+ goto bad;
+
+ /*
+ * Advance past the ppp header.
+ * Here we assume that the whole PPP header is in the first mblk.
+ */
+ np = mp;
+ dp = np->b_rptr + PPP_HDRLEN;
+ if (dp >= mp->b_wptr) {
+ np = np->b_cont;
+ dp = np->b_rptr;
+ }
+
+ /*
+ * Make sure we have sufficient contiguous data at this point.
+ */
+ hlen = (proto == PPP_VJC_COMP)? MAX_VJHDR: MAX_IPHDR;
+ if (hlen > len)
+ hlen = len;
+ if (np->b_wptr < dp + hlen || np->b_datap->db_ref > 1) {
+ PULLUP(mp, hlen + PPP_HDRLEN);
+ if (mp == 0)
+ goto bad;
+ np = mp;
+ dp = np->b_rptr + PPP_HDRLEN;
+ }
+
+ if (proto == PPP_VJC_COMP) {
+ /*
+ * Decompress VJ-compressed packet.
+ * First reset compressor if an input error has occurred.
+ */
+ if (cp->stats.ppp_ierrors != cp->vj_last_ierrors) {
+ if (cp->flags & DBGLOG)
+ DPRINT1("ppp%d: resetting VJ\n", cp->unit);
+ vj_uncompress_err(&cp->vj_comp);
+ cp->vj_last_ierrors = cp->stats.ppp_ierrors;
+ }
+
+ vjlen = vj_uncompress_tcp(dp, np->b_wptr - dp, len,
+ &cp->vj_comp, &iphdr, &iphlen);
+ if (vjlen < 0) {
+ if (cp->flags & DBGLOG)
+ DPRINT2("ppp%d: vj_uncomp_tcp failed, pkt len %d\n",
+ cp->unit, len);
+ ++cp->vj_last_ierrors; /* so we don't reset next time */
+ goto bad;
+ }
+
+ /* drop ppp and vj headers off */
+ if (mp != np) {
+ freeb(mp);
+ mp = np;
+ }
+ mp->b_rptr = dp + vjlen;
+
+ /* allocate a new mblk for the ppp and ip headers */
+ if ((np = allocb(iphlen + PPP_HDRLEN + 4, BPRI_MED)) == 0)
+ goto bad;
+ dp = np->b_rptr; /* prepend mblk with TCP/IP hdr */
+ dp[0] = PPP_ALLSTATIONS; /* reconstruct PPP header */
+ dp[1] = PPP_UI;
+ dp[2] = PPP_IP >> 8;
+ dp[3] = PPP_IP;
+ bcopy((caddr_t)iphdr, (caddr_t)dp + PPP_HDRLEN, iphlen);
+ np->b_wptr = dp + iphlen + PPP_HDRLEN;
+ np->b_cont = mp;
+
+ /* XXX there seems to be a bug which causes panics in strread
+ if we make an mbuf with only the IP header in it :-( */
+ if (mp->b_wptr - mp->b_rptr > 4) {
+ bcopy((caddr_t)mp->b_rptr, (caddr_t)np->b_wptr, 4);
+ mp->b_rptr += 4;
+ np->b_wptr += 4;
+ } else {
+ bcopy((caddr_t)mp->b_rptr, (caddr_t)np->b_wptr,
+ mp->b_wptr - mp->b_rptr);
+ np->b_wptr += mp->b_wptr - mp->b_rptr;
+ np->b_cont = mp->b_cont;
+ freeb(mp);
+ }
+
+ mp = np;
+
+ } else {
+ /*
+ * "Decompress" a VJ-uncompressed packet.
+ */
+ cp->vj_last_ierrors = cp->stats.ppp_ierrors;
+ if (!vj_uncompress_uncomp(dp, hlen, &cp->vj_comp)) {
+ if (cp->flags & DBGLOG)
+ DPRINT2("ppp%d: vj_uncomp_uncomp failed, pkt len %d\n",
+ cp->unit, len);
+ ++cp->vj_last_ierrors; /* don't need to reset next time */
+ goto bad;
+ }
+ mp->b_rptr[3] = PPP_IP; /* fix up the PPP protocol field */
+ }
+ }
+
+ putnext(q, mp);
+ continue;
+
+ bad:
+ if (mp != 0)
+ freemsg(mp);
+ cp->stats.ppp_ierrors++;
+ putctl1(q->q_next, M_CTL, PPPCTL_IERROR);
+ }
+
+ return 0;
+}
+
+/*
+ * Handle a CCP packet being sent or received.
+ * Here all the data in the packet is in a single mbuf.
+ */
+static void
+ppp_comp_ccp(q, mp, rcvd)
+ queue_t *q;
+ mblk_t *mp;
+ int rcvd;
+{
+ int len, clen;
+ comp_state_t *cp;
+ unsigned char *dp;
+
+ len = msgdsize(mp);
+ if (len < PPP_HDRLEN + CCP_HDRLEN)
+ return;
+
+ cp = (comp_state_t *) q->q_ptr;
+ dp = mp->b_rptr + PPP_HDRLEN;
+ len -= PPP_HDRLEN;
+ clen = CCP_LENGTH(dp);
+ if (clen > len)
+ return;
+
+ switch (CCP_CODE(dp)) {
+ case CCP_CONFREQ:
+ case CCP_TERMREQ:
+ case CCP_TERMACK:
+ cp->flags &= ~CCP_ISUP;
+ break;
+
+ case CCP_CONFACK:
+ if ((cp->flags & (CCP_ISOPEN | CCP_ISUP)) == CCP_ISOPEN
+ && clen >= CCP_HDRLEN + CCP_OPT_MINLEN
+ && clen >= CCP_HDRLEN + CCP_OPT_LENGTH(dp + CCP_HDRLEN)) {
+ if (!rcvd) {
+ if (cp->xstate != NULL
+ && (*cp->xcomp->comp_init)
+ (cp->xstate, dp + CCP_HDRLEN, clen - CCP_HDRLEN,
+ cp->unit, 0, ((cp->flags & DBGLOG) != 0)))
+ cp->flags |= CCP_COMP_RUN;
+ } else {
+ if (cp->rstate != NULL
+ && (*cp->rcomp->decomp_init)
+ (cp->rstate, dp + CCP_HDRLEN, clen - CCP_HDRLEN,
+ cp->unit, 0, cp->mru, ((cp->flags & DBGLOG) != 0)))
+ cp->flags = (cp->flags & ~CCP_ERR) | CCP_DECOMP_RUN;
+ }
+ }
+ break;
+
+ case CCP_RESETACK:
+ if (cp->flags & CCP_ISUP) {
+ if (!rcvd) {
+ if (cp->xstate && (cp->flags & CCP_COMP_RUN))
+ (*cp->xcomp->comp_reset)(cp->xstate);
+ } else {
+ if (cp->rstate && (cp->flags & CCP_DECOMP_RUN)) {
+ (*cp->rcomp->decomp_reset)(cp->rstate);
+ cp->flags &= ~CCP_ERROR;
+ }
+ }
+ }
+ break;
+ }
+}
+
+#if 0
+dump_msg(mp)
+ mblk_t *mp;
+{
+ dblk_t *db;
+
+ while (mp != 0) {
+ db = mp->b_datap;
+ DPRINT2("mp=%x cont=%x ", mp, mp->b_cont);
+ DPRINT3("rptr=%x wptr=%x datap=%x\n", mp->b_rptr, mp->b_wptr, db);
+ DPRINT2(" base=%x lim=%x", db->db_base, db->db_lim);
+ DPRINT2(" ref=%d type=%d\n", db->db_ref, db->db_type);
+ mp = mp->b_cont;
+ }
+}
+#endif
+
+static int
+msg_byte(mp, i)
+ mblk_t *mp;
+ unsigned int i;
+{
+ while (mp != 0 && i >= mp->b_wptr - mp->b_rptr)
+ mp = mp->b_cont;
+ if (mp == 0)
+ return -1;
+ return mp->b_rptr[i];
+}
diff --git a/mdk-stage1/ppp/solaris/ppp_comp_mod.c b/mdk-stage1/ppp/solaris/ppp_comp_mod.c
new file mode 100644
index 000000000..83ff8e252
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp_comp_mod.c
@@ -0,0 +1,81 @@
+/*
+ * ppp_comp_mod.c - modload support for PPP compression STREAMS module.
+ *
+ * Copyright (c) 1994 The Australian National University.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, provided that the above copyright
+ * notice appears in all copies. This software is provided without any
+ * warranty, express or implied. The Australian National University
+ * makes no representations about the suitability of this software for
+ * any purpose.
+ *
+ * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
+ * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
+ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
+ * OR MODIFICATIONS.
+ *
+ * $Id$
+ */
+
+/*
+ * This file is used under Solaris 2.
+ */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/conf.h>
+#include <sys/modctl.h>
+#include <sys/sunddi.h>
+
+extern struct streamtab ppp_compinfo;
+
+static struct fmodsw fsw = {
+ "ppp_comp",
+ &ppp_compinfo,
+ D_NEW | D_MP | D_MTQPAIR
+};
+
+extern struct mod_ops mod_strmodops;
+
+static struct modlstrmod modlstrmod = {
+ &mod_strmodops,
+ "PPP compression module",
+ &fsw
+};
+
+static struct modlinkage modlinkage = {
+ MODREV_1,
+ (void *) &modlstrmod,
+ NULL
+};
+
+/*
+ * Entry points for modloading.
+ */
+int
+_init(void)
+{
+ return mod_install(&modlinkage);
+}
+
+int
+_fini(void)
+{
+ return mod_remove(&modlinkage);
+}
+
+int
+_info(mip)
+ struct modinfo *mip;
+{
+ return mod_info(&modlinkage, mip);
+}
diff --git a/mdk-stage1/ppp/solaris/ppp_mod.c b/mdk-stage1/ppp/solaris/ppp_mod.c
new file mode 100644
index 000000000..a4b1538a5
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp_mod.c
@@ -0,0 +1,174 @@
+/*
+ * ppp_mod.c - modload support for PPP pseudo-device driver.
+ *
+ * Copyright (c) 1994 The Australian National University.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, provided that the above copyright
+ * notice appears in all copies. This software is provided without any
+ * warranty, express or implied. The Australian National University
+ * makes no representations about the suitability of this software for
+ * any purpose.
+ *
+ * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
+ * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
+ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
+ * OR MODIFICATIONS.
+ *
+ * $Id$
+ */
+
+/*
+ * This file is used under Solaris 2.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/conf.h>
+#include <sys/modctl.h>
+#include <sys/sunddi.h>
+#include <sys/ksynch.h>
+
+#ifdef __STDC__
+#define __P(x) x
+#else
+#define __P(x) ()
+#endif
+
+static int ppp_identify __P((dev_info_t *));
+static int ppp_attach __P((dev_info_t *, ddi_attach_cmd_t));
+static int ppp_detach __P((dev_info_t *, ddi_detach_cmd_t));
+static int ppp_devinfo __P((dev_info_t *, ddi_info_cmd_t, void *, void **));
+
+extern struct streamtab pppinfo;
+extern krwlock_t ppp_lower_lock;
+
+static dev_info_t *ppp_dip;
+
+static struct cb_ops cb_ppp_ops = {
+ nulldev, nulldev, nodev, nodev, /* cb_open, ... */
+ nodev, nodev, nodev, nodev, /* cb_dump, ... */
+ nodev, nodev, nodev, nochpoll, /* cb_devmap, ... */
+ ddi_prop_op, /* cb_prop_op */
+ &pppinfo, /* cb_stream */
+ D_NEW|D_MP|D_MTQPAIR|D_MTOUTPERIM|D_MTOCEXCL /* cb_flag */
+};
+
+static struct dev_ops ppp_ops = {
+ DEVO_REV, /* devo_rev */
+ 0, /* devo_refcnt */
+ ppp_devinfo, /* devo_getinfo */
+ ppp_identify, /* devo_identify */
+ nulldev, /* devo_probe */
+ ppp_attach, /* devo_attach */
+ ppp_detach, /* devo_detach */
+ nodev, /* devo_reset */
+ &cb_ppp_ops, /* devo_cb_ops */
+ NULL /* devo_bus_ops */
+};
+
+/*
+ * Module linkage information
+ */
+
+static struct modldrv modldrv = {
+ &mod_driverops, /* says this is a pseudo driver */
+ "PPP-2.3 multiplexing driver",
+ &ppp_ops /* driver ops */
+};
+
+static struct modlinkage modlinkage = {
+ MODREV_1,
+ (void *) &modldrv,
+ NULL
+};
+
+int
+_init(void)
+{
+ return mod_install(&modlinkage);
+}
+
+int
+_fini(void)
+{
+ return mod_remove(&modlinkage);
+}
+
+int
+_info(mip)
+ struct modinfo *mip;
+{
+ return mod_info(&modlinkage, mip);
+}
+
+static int
+ppp_identify(dip)
+ dev_info_t *dip;
+{
+ return strcmp(ddi_get_name(dip), "ppp") == 0? DDI_IDENTIFIED:
+ DDI_NOT_IDENTIFIED;
+}
+
+static int
+ppp_attach(dip, cmd)
+ dev_info_t *dip;
+ ddi_attach_cmd_t cmd;
+{
+
+ if (cmd != DDI_ATTACH)
+ return DDI_FAILURE;
+ if (ddi_create_minor_node(dip, "ppp", S_IFCHR, 0, DDI_PSEUDO, CLONE_DEV)
+ == DDI_FAILURE) {
+ ddi_remove_minor_node(dip, NULL);
+ return DDI_FAILURE;
+ }
+ rw_init(&ppp_lower_lock, NULL, RW_DRIVER, NULL);
+ return DDI_SUCCESS;
+}
+
+static int
+ppp_detach(dip, cmd)
+ dev_info_t *dip;
+ ddi_detach_cmd_t cmd;
+{
+ rw_destroy(&ppp_lower_lock);
+ ddi_remove_minor_node(dip, NULL);
+ return DDI_SUCCESS;
+}
+
+static int
+ppp_devinfo(dip, cmd, arg, result)
+ dev_info_t *dip;
+ ddi_info_cmd_t cmd;
+ void *arg;
+ void **result;
+{
+ int error;
+
+ error = DDI_SUCCESS;
+ switch (cmd) {
+ case DDI_INFO_DEVT2DEVINFO:
+ if (ppp_dip == NULL)
+ error = DDI_FAILURE;
+ else
+ *result = (void *) ppp_dip;
+ break;
+ case DDI_INFO_DEVT2INSTANCE:
+ *result = NULL;
+ break;
+ default:
+ error = DDI_FAILURE;
+ }
+ return error;
+}
diff --git a/mdk-stage1/ppp/solaris/ppp_mod.h b/mdk-stage1/ppp/solaris/ppp_mod.h
new file mode 100644
index 000000000..f0af00886
--- /dev/null
+++ b/mdk-stage1/ppp/solaris/ppp_mod.h
@@ -0,0 +1,190 @@
+/*
+ * Miscellaneous definitions for PPP STREAMS modules.
+ */
+
+/*
+ * Macros for allocating and freeing kernel memory.
+ */
+#ifdef SVR4 /* SVR4, including Solaris 2 */
+#include <sys/kmem.h>
+#define ALLOC_SLEEP(n) kmem_alloc((n), KM_SLEEP)
+#define ALLOC_NOSLEEP(n) kmem_alloc((n), KM_NOSLEEP)
+#define FREE(p, n) kmem_free((p), (n))
+#endif
+
+#ifdef SUNOS4
+#include <sys/kmem_alloc.h> /* SunOS 4.x */
+#define ALLOC_SLEEP(n) kmem_alloc((n), KMEM_SLEEP)
+#define ALLOC_NOSLEEP(n) kmem_alloc((n), KMEM_NOSLEEP)
+#define FREE(p, n) kmem_free((p), (n))
+#define NOTSUSER() (suser()? 0: EPERM)
+#define bcanputnext(q, band) canputnext((q))
+#endif /* SunOS 4 */
+
+#ifdef __osf__
+#include <sys/malloc.h>
+
+/* caution: this mirrors macros in sys/malloc.h, and uses interfaces
+ * which are subject to change.
+ * The problems are that:
+ * - the official MALLOC macro wants the lhs of the assignment as an argument,
+ * and it takes care of the assignment itself (yuck.)
+ * - PPP insists on using "FREE" which conflicts with a macro of the same name.
+ *
+ */
+#ifdef BUCKETINDX /* V2.0 */
+#define ALLOC_SLEEP(n) (void *)malloc((u_long)(n), BUCKETP(n), M_DEVBUF, M_WAITOK)
+#define ALLOC_NOSLEEP(n) (void *)malloc((u_long)(n), BUCKETP(n), M_DEVBUF, M_NOWAIT)
+#else
+#define ALLOC_SLEEP(n) (void *)malloc((u_long)(n), BUCKETINDEX(n), M_DEVBUF, M_WAITOK)
+#define ALLOC_NOSLEEP(n) (void *)malloc((u_long)(n), BUCKETINDEX(n), M_DEVBUF, M_NOWAIT)
+#endif
+
+#define bcanputnext(q, band) canputnext((q))
+
+#ifdef FREE
+#undef FREE
+#endif
+#define FREE(p, n) free((void *)(p), M_DEVBUF)
+
+#define NO_DLPI 1
+
+#ifndef IFT_PPP
+#define IFT_PPP 0x17
+#endif
+
+#include <sys/proc.h>
+#define NOTSUSER() (suser(u.u_procp->p_rcred, &u.u_acflag) ? EPERM : 0)
+
+/* #include "ppp_osf.h" */
+
+#endif /* __osf__ */
+
+#ifdef AIX4
+#define ALLOC_SLEEP(n) xmalloc((n), 0, pinned_heap) /* AIX V4.x */
+#define ALLOC_NOSLEEP(n) xmalloc((n), 0, pinned_heap) /* AIX V4.x */
+#define FREE(p, n) xmfree((p), pinned_heap)
+#define NOTSUSER() (suser()? 0: EPERM)
+#endif /* AIX */
+
+/*
+ * Macros for printing debugging stuff.
+ */
+#ifdef DEBUG
+#if defined(SVR4) || defined(__osf__)
+#if defined(SNI)
+#include <sys/strlog.h>
+#define STRLOG_ID 4712
+#define DPRINT(f) strlog(STRLOG_ID, 0, 0, SL_TRACE, f)
+#define DPRINT1(f, a1) strlog(STRLOG_ID, 0, 0, SL_TRACE, f, a1)
+#define DPRINT2(f, a1, a2) strlog(STRLOG_ID, 0, 0, SL_TRACE, f, a1, a2)
+#define DPRINT3(f, a1, a2, a3) strlog(STRLOG_ID, 0, 0, SL_TRACE, f, a1, a2, a3)
+#else
+#define DPRINT(f) cmn_err(CE_CONT, f)
+#define DPRINT1(f, a1) cmn_err(CE_CONT, f, a1)
+#define DPRINT2(f, a1, a2) cmn_err(CE_CONT, f, a1, a2)
+#define DPRINT3(f, a1, a2, a3) cmn_err(CE_CONT, f, a1, a2, a3)
+#endif /* SNI */
+#else
+#define DPRINT(f) printf(f)
+#define DPRINT1(f, a1) printf(f, a1)
+#define DPRINT2(f, a1, a2) printf(f, a1, a2)
+#define DPRINT3(f, a1, a2, a3) printf(f, a1, a2, a3)
+#endif /* SVR4 or OSF */
+
+#else
+#define DPRINT(f) 0
+#define DPRINT1(f, a1) 0
+#define DPRINT2(f, a1, a2) 0
+#define DPRINT3(f, a1, a2, a3) 0
+#endif /* DEBUG */
+
+#ifndef SVR4
+typedef unsigned char uchar_t;
+typedef unsigned short ushort_t;
+#ifndef __osf__
+typedef int minor_t;
+#endif
+#endif
+
+/*
+ * If we don't have multithreading support, define substitutes.
+ */
+#ifndef D_MP
+# define qprocson(q)
+# define qprocsoff(q)
+# define put(q, mp) ((*(q)->q_qinfo->qi_putp)((q), (mp)))
+# define canputnext(q) canput((q)->q_next)
+# define qwriter(q, mp, func, scope) (func)((q), (mp))
+#endif
+
+#ifdef D_MP
+/* Use msgpullup if we have other multithreading support. */
+#define PULLUP(mp, len) \
+ do { \
+ mblk_t *np = msgpullup((mp), (len)); \
+ freemsg((mp)); \
+ mp = np; \
+ } while (0)
+
+#else
+/* Use pullupmsg if we don't have any multithreading support. */
+#define PULLUP(mp, len) \
+ do { \
+ if (!pullupmsg((mp), (len))) { \
+ freemsg((mp)); \
+ mp = 0; \
+ } \
+ } while (0)
+#endif
+
+/*
+ * How to declare the open and close procedures for a module.
+ */
+#ifdef SVR4
+#define MOD_OPEN_DECL(name) \
+static int name __P((queue_t *, dev_t *, int, int, cred_t *))
+
+#define MOD_CLOSE_DECL(name) \
+static int name __P((queue_t *, int, cred_t *))
+
+#define MOD_OPEN(name) \
+static int name(q, devp, flag, sflag, credp) \
+ queue_t *q; \
+ dev_t *devp; \
+ int flag, sflag; \
+ cred_t *credp;
+
+#define MOD_CLOSE(name) \
+static int name(q, flag, credp) \
+ queue_t *q; \
+ int flag; \
+ cred_t *credp;
+
+#define OPEN_ERROR(x) return (x)
+#define DRV_OPEN_OK(dev) return 0
+
+#define NOTSUSER() (drv_priv(credp))
+
+#else /* not SVR4 */
+#define MOD_OPEN_DECL(name) \
+static int name __P((queue_t *, int, int, int))
+
+#define MOD_CLOSE_DECL(name) \
+static int name __P((queue_t *, int))
+
+#define MOD_OPEN(name) \
+static int name(q, dev, flag, sflag) \
+ queue_t *q; \
+ int dev; \
+ int flag, sflag;
+
+#define MOD_CLOSE(name) \
+static int name(q, flag) \
+ queue_t *q; \
+ int flag;
+
+#define OPEN_ERROR(x) { u.u_error = (x); return OPENFAIL; }
+#define DRV_OPEN_OK(dev) return (dev)
+
+#endif /* SVR4 */
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