From f32ed1b2494ad07b28937175173e753369884eaa Mon Sep 17 00:00:00 2001
From: Planet-Lab Support <support@planet-lab.org>
Date: Fri, 21 Jan 2005 03:34:50 +0000
Subject: [PATCH] This commit was manufactured by cvs2svn to create tag
'after-stack-check-merge'.
---
Makefile | 6 +-
arch/i386/Kconfig | 51 ++
arch/i386/boot/.cvsignore | 4 +
arch/i386/boot/compressed/.cvsignore | 3 +
arch/i386/boot/compressed/misc.c | 3 +
arch/i386/boot/tools/.cvsignore | 1 +
arch/i386/defconfig | 2 +-
arch/i386/kernel/.cvsignore | 2 +
arch/i386/kernel/asm-offsets.c | 2 +-
arch/i386/kernel/entry.S | 53 ++
arch/i386/kernel/i386_ksyms.c | 6 +
arch/i386/kernel/init_task.c | 7 +
arch/i386/kernel/irq.c | 14 +-
arch/i386/kernel/process.c | 18 +
configs/kernel-2.6.8-i686-planetlab.config | 6 +
drivers/char/.cvsignore | 2 +
drivers/pci/.cvsignore | 3 +
drivers/scsi/aic7xxx/.cvsignore | 4 +
include/.cvsignore | 1 +
include/asm-i386/.cvsignore | 1 +
include/asm-i386/irq.h | 5 +
include/asm-i386/module.h | 12 +
include/asm-i386/processor.h | 8 +-
include/asm-i386/thread_info.h | 5 +-
include/linux/.cvsignore | 3 +
.../linux/netfilter_ipv4/ip_conntrack_pptp.h | 310 --------
.../netfilter_ipv4/ip_conntrack_proto_gre.h | 123 ---
include/linux/netfilter_ipv4/ip_nat_pptp.h | 11 -
kernel/.cvsignore | 2 +
kernel/itimer.c | 4 +-
kernel/signal.c | 22 +-
lib/.cvsignore | 2 +
net/ipv4/netfilter/ip_conntrack_pptp.c | 712 ------------------
net/ipv4/netfilter/ip_conntrack_pptp_priv.h | 24 -
net/ipv4/netfilter/ip_conntrack_proto_gre.c | 349 ---------
net/ipv4/netfilter/ip_nat_pptp.c | 477 ------------
net/ipv4/netfilter/ip_nat_proto_gre.c | 210 ------
scripts/.cvsignore | 4 +
scripts/basic/.cvsignore | 3 +
scripts/kconfig/.cvsignore | 5 +
scripts/kernel-2.6-planetlab.spec | 2 +-
scripts/lxdialog/.cvsignore | 1 +
scripts/mod/.cvsignore | 3 +
usr/.cvsignore | 3 +
44 files changed, 242 insertions(+), 2247 deletions(-)
create mode 100644 arch/i386/boot/.cvsignore
create mode 100644 arch/i386/boot/compressed/.cvsignore
create mode 100644 arch/i386/boot/tools/.cvsignore
create mode 100644 arch/i386/kernel/.cvsignore
create mode 100644 drivers/char/.cvsignore
create mode 100644 drivers/pci/.cvsignore
create mode 100644 drivers/scsi/aic7xxx/.cvsignore
create mode 100644 include/.cvsignore
create mode 100644 include/asm-i386/.cvsignore
create mode 100644 include/linux/.cvsignore
delete mode 100644 include/linux/netfilter_ipv4/ip_conntrack_pptp.h
delete mode 100644 include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h
delete mode 100644 include/linux/netfilter_ipv4/ip_nat_pptp.h
create mode 100644 kernel/.cvsignore
create mode 100644 lib/.cvsignore
delete mode 100644 net/ipv4/netfilter/ip_conntrack_pptp.c
delete mode 100644 net/ipv4/netfilter/ip_conntrack_pptp_priv.h
delete mode 100644 net/ipv4/netfilter/ip_conntrack_proto_gre.c
delete mode 100644 net/ipv4/netfilter/ip_nat_pptp.c
delete mode 100644 net/ipv4/netfilter/ip_nat_proto_gre.c
create mode 100644 scripts/.cvsignore
create mode 100644 scripts/basic/.cvsignore
create mode 100644 scripts/kconfig/.cvsignore
create mode 100644 scripts/lxdialog/.cvsignore
create mode 100644 scripts/mod/.cvsignore
create mode 100644 usr/.cvsignore
diff --git a/Makefile b/Makefile
index 4d94580e0..00c5f30c3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 8
-EXTRAVERSION = -1.521.2.5.planetlab
+EXTRAVERSION = -1.521.3.planetlab.2004.12.14
NAME=Zonked Quokka
# *DOCUMENTATION*
@@ -453,6 +453,10 @@ ifndef CONFIG_FRAME_POINTER
CFLAGS += -fomit-frame-pointer
endif
+ifdef CONFIG_X86_STACK_CHECK
+CFLAGS += -p
+endif
+
ifdef CONFIG_DEBUG_INFO
CFLAGS += -g
endif
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 15b003b50..5922c842e 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -926,6 +926,57 @@ config REGPARM
generate incorrect output with certain kernel constructs when
-mregparm=3 is used.
+config IRQSTACKS
+ bool "Use separate IRQ stacks"
+ help
+ If you say Y here the kernel will use a separate IRQ stack on each
+ cpu to handle interrupts.
+
+config STACK_SIZE_SHIFT
+ int "Kernel stack size (12 => 4KB, 13 => 8KB, 14 => 16KB)"
+ range 12 14
+ default 12 if IRQSTACKS
+ default 13
+ help
+ Select kernel stack size. 4KB stacks are best as they let
+ the system scale further. Use 8KB stacks if you have an
+ experimental kernel where a stack overlow with a 4KB stack
+ might occur. Use 16KB stacks if you want to safely support
+ Windows device drivers using either Linuxant or ndiswrapper.
+
+config STACK_WARN
+ int "Print stack trace when stack grows beyond specified bytes"
+ default 4096 if IRQSTACKS
+ default 4096
+ help
+ The kernel will print a stack trace when the current stack exceeds
+ the specified size.
+
+config X86_STACK_CHECK
+ bool "Check for stack overflows"
+ default n
+ help
+ Say Y here to have the kernel attempt to detect when the per-task
+ kernel stack overflows.
+
+ Some older versions of gcc don't handle the -p option correctly.
+ Kernprof is affected by the same problem, which is described here:
+ http://oss.sgi.com/projects/kernprof/faq.html#Q9
+
+ Basically, if you get oopses in __free_pages_ok during boot when
+ you have this turned on, you need to fix gcc. The Redhat 2.96
+ version and gcc-3.x seem to work.
+
+ If not debugging a stack overflow problem, say N
+
+config STACK_PANIC
+ int "Panic when stack approaches with specified bytes of the stack limit"
+ depends on X86_STACK_CHECK
+ default 512 if IRQSTACKS
+ default 512
+ help
+ Panic if the stack grows to within specified byte range.
+
endmenu
diff --git a/arch/i386/boot/.cvsignore b/arch/i386/boot/.cvsignore
new file mode 100644
index 000000000..2d8a3afa4
--- /dev/null
+++ b/arch/i386/boot/.cvsignore
@@ -0,0 +1,4 @@
+bootsect
+bzImage
+setup
+vmlinux.bin
diff --git a/arch/i386/boot/compressed/.cvsignore b/arch/i386/boot/compressed/.cvsignore
new file mode 100644
index 000000000..96b1b0022
--- /dev/null
+++ b/arch/i386/boot/compressed/.cvsignore
@@ -0,0 +1,3 @@
+vmlinux
+vmlinux.bin
+vmlinux.bin.gz
diff --git a/arch/i386/boot/compressed/misc.c b/arch/i386/boot/compressed/misc.c
index fa6704523..874568330 100644
--- a/arch/i386/boot/compressed/misc.c
+++ b/arch/i386/boot/compressed/misc.c
@@ -380,3 +380,6 @@ asmlinkage int decompress_kernel(struct moveparams *mv, void *rmode)
if (high_loaded) close_output_buffer_if_we_run_high(mv);
return high_loaded;
}
+
+/* We don't actually check for stack overflows this early. */
+__asm__(".globl mcount ; mcount: ret\n");
diff --git a/arch/i386/boot/tools/.cvsignore b/arch/i386/boot/tools/.cvsignore
new file mode 100644
index 000000000..378eac25d
--- /dev/null
+++ b/arch/i386/boot/tools/.cvsignore
@@ -0,0 +1 @@
+build
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index aed3bc298..ed2bbb54d 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -1221,7 +1221,7 @@ CONFIG_OPROFILE=y
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_FRAME_POINTER is not set
-CONFIG_4KSTACKS=y
+# CONFIG_4KSTACKS is not set
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y
diff --git a/arch/i386/kernel/.cvsignore b/arch/i386/kernel/.cvsignore
new file mode 100644
index 000000000..21c28761b
--- /dev/null
+++ b/arch/i386/kernel/.cvsignore
@@ -0,0 +1,2 @@
+asm-offsets.s
+vmlinux.lds.s
diff --git a/arch/i386/kernel/asm-offsets.c b/arch/i386/kernel/asm-offsets.c
index 43943f871..b03f579a6 100644
--- a/arch/i386/kernel/asm-offsets.c
+++ b/arch/i386/kernel/asm-offsets.c
@@ -7,11 +7,11 @@
#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/personality.h>
+#include <linux/thread_info.h>
#include <asm/ucontext.h>
#include "sigframe.h"
#include <asm/fixmap.h>
#include <asm/processor.h>
-#include <asm/thread_info.h>
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 3ac74183c..dc7ff8f75 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -734,9 +734,62 @@ ENTRY(spurious_interrupt_bug)
pushl $do_spurious_interrupt_bug
jmp error_code
+#ifdef CONFIG_X86_STACK_CHECK
+ENTRY(mcount)
+ push %eax
+ movl $(THREAD_SIZE - 1),%eax
+ andl %esp,%eax
+ cmpl $STACK_WARN,%eax /* esp reaches into STACK_WARN space */
+ jle 1f
+2:
+ popl %eax
+ ret
+1:
+ lock; btsl $0,stack_overflowed
+ jc 2b
+
+ # switch to overflow stack
+ movl %esp,%eax
+ movl $(stack_overflow_stack + THREAD_SIZE - 4),%esp
+
+ pushf
+ cli
+ pushl %eax
+
+ # push eip then esp of error for stack_overflow_panic
+ pushl 4(%eax)
+ pushl %eax
+
+ # update the task pointer and cpu in the overflow stack's thread_info.
+ GET_THREAD_INFO_WITH_ESP(%eax)
+ movl TI_task(%eax),%ebx
+ movl %ebx,stack_overflow_stack+TI_task
+ movl TI_cpu(%eax),%ebx
+ movl %ebx,stack_overflow_stack+TI_cpu
+
+ call stack_overflow
+
+ # pop off call arguments
+ addl $8,%esp
+
+ popl %eax
+ popf
+ movl %eax,%esp
+ popl %eax
+ movl $0,stack_overflowed
+ ret
+#warning stack check enabled
+#endif
+
.previous
.data
+#ifdef CONFIG_X86_STACK_CHECK
+ .globl stack_overflowed
+stack_overflowed:
+ .long 0
+#endif
+
ENTRY(sys_call_table)
.long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */
.long sys_exit
diff --git a/arch/i386/kernel/i386_ksyms.c b/arch/i386/kernel/i386_ksyms.c
index 5a50c536d..584982c3e 100644
--- a/arch/i386/kernel/i386_ksyms.c
+++ b/arch/i386/kernel/i386_ksyms.c
@@ -188,6 +188,12 @@ EXPORT_SYMBOL(atomic_dec_and_lock);
EXPORT_SYMBOL(__PAGE_KERNEL);
+#ifdef CONFIG_X86_STACK_CHECK
+extern void mcount(void);
+EXPORT_SYMBOL(mcount);
+#endif
+
+
#ifdef CONFIG_HIGHMEM
EXPORT_SYMBOL(kmap);
EXPORT_SYMBOL(kunmap);
diff --git a/arch/i386/kernel/init_task.c b/arch/i386/kernel/init_task.c
index 7422d73ee..30cfd4085 100644
--- a/arch/i386/kernel/init_task.c
+++ b/arch/i386/kernel/init_task.c
@@ -29,6 +29,13 @@ union thread_union init_thread_union
__attribute__((__section__(".data.init_task"))) =
{ INIT_THREAD_INFO(init_task, init_thread_union) };
+#ifdef CONFIG_X86_STACK_CHECK
+union thread_union stack_overflow_stack
+ __attribute__((__section__(".data.init_task"))) =
+ { INIT_THREAD_INFO(init_task, stack_overflow_stack) };
+#endif
+
+
/*
* Initial task structure.
*
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index 22f7fc771..1c8bedaeb 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -76,8 +76,10 @@ static void register_irq_proc (unsigned int irq);
/*
* per-CPU IRQ handling stacks
*/
+#ifdef CONFIG_IRQSTACKS
union irq_ctx *hardirq_ctx[NR_CPUS];
union irq_ctx *softirq_ctx[NR_CPUS];
+#endif
/*
* Special irq handlers.
@@ -220,6 +222,9 @@ asmlinkage int handle_IRQ_event(unsigned int irq,
int status = 1; /* Force the "do bottom halves" bit */
int retval = 0;
+ if (!(action->flags & SA_INTERRUPT))
+ local_irq_enable();
+
do {
status |= action->flags;
retval |= action->handler(irq, action->dev_id, regs);
@@ -489,10 +494,12 @@ asmlinkage unsigned int do_IRQ(struct pt_regs regs)
u32 *isp;
union irq_ctx * curctx;
union irq_ctx * irqctx;
-
+#ifdef CONFIG_IRQSTACKS
curctx = (union irq_ctx *) current_thread_info();
irqctx = hardirq_ctx[smp_processor_id()];
-
+#else
+ curctx = irqctx = (union irq_ctx *)0;
+#endif
spin_unlock(&desc->lock);
/*
@@ -536,7 +543,6 @@ asmlinkage unsigned int do_IRQ(struct pt_regs regs)
break;
desc->status &= ~IRQ_PENDING;
}
-
desc->status &= ~IRQ_INPROGRESS;
out:
@@ -1095,6 +1101,7 @@ void init_irq_proc (void)
}
+#ifdef CONFIG_IRQSTACKS
/*
* These should really be __section__(".bss.page_aligned") as well, but
* gcc's 3.0 and earlier don't handle that correctly.
@@ -1174,3 +1181,4 @@ asmlinkage void do_softirq(void)
}
EXPORT_SYMBOL(do_softirq);
+#endif
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 3093d1fc6..51c17cc52 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -219,6 +219,24 @@ static int __init idle_setup (char *str)
__setup("idle=", idle_setup);
+void stack_overflow(unsigned long esp, unsigned long eip)
+{
+ int panicing = ((esp&(THREAD_SIZE-1)) <= STACK_PANIC);
+
+ printk( "esp: 0x%lx masked: 0x%lx STACK_PANIC:0x%lx %d %d\n",
+ esp, (esp&(THREAD_SIZE-1)), STACK_PANIC, (((esp&(THREAD_SIZE-1)) <= STACK_PANIC)), panicing );
+
+ if (panicing)
+ print_symbol("stack overflow from %s\n", eip);
+ else
+ print_symbol("excessive stack use from %s\n", eip);
+ printk("esp: %p\n", (void*)esp);
+ show_trace(current,(void*)esp);
+
+ if (panicing)
+ panic("stack overflow\n");
+}
+
void show_regs(struct pt_regs * regs)
{
unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
diff --git a/configs/kernel-2.6.8-i686-planetlab.config b/configs/kernel-2.6.8-i686-planetlab.config
index ea66387e5..f5a0c3079 100644
--- a/configs/kernel-2.6.8-i686-planetlab.config
+++ b/configs/kernel-2.6.8-i686-planetlab.config
@@ -97,6 +97,7 @@ CONFIG_M686=y
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
CONFIG_X86_GENERIC=y
+# CONFIG_QEMU is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=7
@@ -140,6 +141,11 @@ CONFIG_HIGHPTE=y
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_REGPARM=y
+CONFIG_IRQSTACKS=y
+CONFIG_STACK_SIZE_SHIFT=13
+CONFIG_STACK_WARN=4000
+# CONFIG_X86_STACK_CHECK is not set
+CONFIG_STACK_PANIC=512
#
# Power management options (ACPI, APM)
diff --git a/drivers/char/.cvsignore b/drivers/char/.cvsignore
new file mode 100644
index 000000000..83683a2d8
--- /dev/null
+++ b/drivers/char/.cvsignore
@@ -0,0 +1,2 @@
+consolemap_deftbl.c
+defkeymap.c
diff --git a/drivers/pci/.cvsignore b/drivers/pci/.cvsignore
new file mode 100644
index 000000000..d5b21d9ee
--- /dev/null
+++ b/drivers/pci/.cvsignore
@@ -0,0 +1,3 @@
+classlist.h
+devlist.h
+gen-devlist
diff --git a/drivers/scsi/aic7xxx/.cvsignore b/drivers/scsi/aic7xxx/.cvsignore
new file mode 100644
index 000000000..a1a7fcd04
--- /dev/null
+++ b/drivers/scsi/aic7xxx/.cvsignore
@@ -0,0 +1,4 @@
+aic79xx_reg.h
+aic79xx_seq.h
+aic7xxx_reg.h
+aic7xxx_seq.h
diff --git a/include/.cvsignore b/include/.cvsignore
new file mode 100644
index 000000000..04204c7c9
--- /dev/null
+++ b/include/.cvsignore
@@ -0,0 +1 @@
+config
diff --git a/include/asm-i386/.cvsignore b/include/asm-i386/.cvsignore
new file mode 100644
index 000000000..4ec57ad5b
--- /dev/null
+++ b/include/asm-i386/.cvsignore
@@ -0,0 +1 @@
+asm_offsets.h
diff --git a/include/asm-i386/irq.h b/include/asm-i386/irq.h
index d1a4dd68f..43917d930 100644
--- a/include/asm-i386/irq.h
+++ b/include/asm-i386/irq.h
@@ -39,6 +39,7 @@ union irq_ctx {
u32 stack[THREAD_SIZE/sizeof(u32)];
};
+#ifdef CONFIG_IRQSTACKS
extern union irq_ctx *hardirq_ctx[NR_CPUS];
extern union irq_ctx *softirq_ctx[NR_CPUS];
@@ -46,6 +47,10 @@ extern void irq_ctx_init(int cpu);
#define __ARCH_HAS_DO_SOFTIRQ
+#else
+#define irq_ctx_init(cpu) do { ; } while (0)
+#endif
+
struct irqaction;
struct pt_regs;
asmlinkage int handle_IRQ_event(unsigned int, struct pt_regs *,
diff --git a/include/asm-i386/module.h b/include/asm-i386/module.h
index 614d05f27..263c6f752 100644
--- a/include/asm-i386/module.h
+++ b/include/asm-i386/module.h
@@ -60,7 +60,19 @@ struct mod_arch_specific
#define MODULE_REGPARM ""
#endif
+#if (CONFIG_STACK_SIZE_SHIFT < 12)
+#define MODULE_STACKSIZE "TINYSTACKS "
+#elif (CONFIG_STACK_SIZE_SHIFT == 12)
#define MODULE_STACKSIZE "4KSTACKS "
+#elif (CONFIG_STACK_SIZE_SHIFT == 13)
+#define MODULE_STACKSIZE "8KSTACKS "
+#elif (CONFIG_STACK_SIZE_SHIFT == 14)
+#define MODULE_STACKSIZE "16KSTACKS "
+#elif (CONFIG_STACK_SIZE_SHIFT > 14)
+#define MODULE_STACKSIZE "HUGESTACKS "
+#else
+#define MODULE_STACKSIZE ""
+#endif
#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_REGPARM MODULE_STACKSIZE
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index cd8708b42..3651a3bb0 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -400,10 +400,10 @@ struct tss_struct {
#define ARCH_MIN_TASKALIGN 16
-
-#define STACK_PAGE_COUNT (4096/PAGE_SIZE)
-
-
+#if ((1<<CONFIG_STACK_SIZE_SHIFT) < PAGE_SIZE)
+#error (1<<CONFIG_STACK_SIZE_SHIFT) must be at least PAGE_SIZE
+#endif
+#define STACK_PAGE_COUNT ((1<<CONFIG_STACK_SIZE_SHIFT)/PAGE_SIZE)
struct thread_struct {
diff --git a/include/asm-i386/thread_info.h b/include/asm-i386/thread_info.h
index d941e6d92..da74573aa 100644
--- a/include/asm-i386/thread_info.h
+++ b/include/asm-i386/thread_info.h
@@ -54,9 +54,10 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x4000000
-#define THREAD_SIZE (4096)
+#define THREAD_SIZE (1<<CONFIG_STACK_SIZE_SHIFT)
+#define STACK_WARN (CONFIG_STACK_WARN)
+#define STACK_PANIC (0x200ul)
-#define STACK_WARN (THREAD_SIZE/8)
/*
* macros/functions for gaining access to the thread information structure
*
diff --git a/include/linux/.cvsignore b/include/linux/.cvsignore
new file mode 100644
index 000000000..c1cddb666
--- /dev/null
+++ b/include/linux/.cvsignore
@@ -0,0 +1,3 @@
+autoconf.h
+compile.h
+version.h
diff --git a/include/linux/netfilter_ipv4/ip_conntrack_pptp.h b/include/linux/netfilter_ipv4/ip_conntrack_pptp.h
deleted file mode 100644
index 0fbec884a..000000000
--- a/include/linux/netfilter_ipv4/ip_conntrack_pptp.h
+++ /dev/null
@@ -1,310 +0,0 @@
-/* PPTP constants and structs */
-#ifndef _CONNTRACK_PPTP_H
-#define _CONNTRACK_PPTP_H
-
-/* state of the control session */
-enum pptp_ctrlsess_state {
- PPTP_SESSION_NONE, /* no session present */
- PPTP_SESSION_ERROR, /* some session error */
- PPTP_SESSION_STOPREQ, /* stop_sess request seen */
- PPTP_SESSION_REQUESTED, /* start_sess request seen */
- PPTP_SESSION_CONFIRMED, /* session established */
-};
-
-/* state of the call inside the control session */
-enum pptp_ctrlcall_state {
- PPTP_CALL_NONE,
- PPTP_CALL_ERROR,
- PPTP_CALL_OUT_REQ,
- PPTP_CALL_OUT_CONF,
- PPTP_CALL_IN_REQ,
- PPTP_CALL_IN_REP,
- PPTP_CALL_IN_CONF,
- PPTP_CALL_CLEAR_REQ,
-};
-
-
-/* conntrack private data */
-struct ip_ct_pptp_master {
- enum pptp_ctrlsess_state sstate; /* session state */
-
- /* everything below is going to be per-expectation in newnat,
- * since there could be more than one call within one session */
- enum pptp_ctrlcall_state cstate; /* call state */
- u_int16_t pac_call_id; /* call id of PAC, host byte order */
- u_int16_t pns_call_id; /* call id of PNS, host byte order */
-};
-
-/* conntrack_expect private member */
-struct ip_ct_pptp_expect {
- enum pptp_ctrlcall_state cstate; /* call state */
- u_int16_t pac_call_id; /* call id of PAC */
- u_int16_t pns_call_id; /* call id of PNS */
-};
-
-
-#ifdef __KERNEL__
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-DECLARE_LOCK_EXTERN(ip_pptp_lock);
-
-#define IP_CONNTR_PPTP PPTP_CONTROL_PORT
-
-#define PPTP_CONTROL_PORT 1723
-
-#define PPTP_PACKET_CONTROL 1
-#define PPTP_PACKET_MGMT 2
-
-#define PPTP_MAGIC_COOKIE 0x1a2b3c4d
-
-struct pptp_pkt_hdr {
- __u16 packetLength;
- __u16 packetType;
- __u32 magicCookie;
-};
-
-/* PptpControlMessageType values */
-#define PPTP_START_SESSION_REQUEST 1
-#define PPTP_START_SESSION_REPLY 2
-#define PPTP_STOP_SESSION_REQUEST 3
-#define PPTP_STOP_SESSION_REPLY 4
-#define PPTP_ECHO_REQUEST 5
-#define PPTP_ECHO_REPLY 6
-#define PPTP_OUT_CALL_REQUEST 7
-#define PPTP_OUT_CALL_REPLY 8
-#define PPTP_IN_CALL_REQUEST 9
-#define PPTP_IN_CALL_REPLY 10
-#define PPTP_IN_CALL_CONNECT 11
-#define PPTP_CALL_CLEAR_REQUEST 12
-#define PPTP_CALL_DISCONNECT_NOTIFY 13
-#define PPTP_WAN_ERROR_NOTIFY 14
-#define PPTP_SET_LINK_INFO 15
-
-#define PPTP_MSG_MAX 15
-
-/* PptpGeneralError values */
-#define PPTP_ERROR_CODE_NONE 0
-#define PPTP_NOT_CONNECTED 1
-#define PPTP_BAD_FORMAT 2
-#define PPTP_BAD_VALUE 3
-#define PPTP_NO_RESOURCE 4
-#define PPTP_BAD_CALLID 5
-#define PPTP_REMOVE_DEVICE_ERROR 6
-
-struct PptpControlHeader {
- __u16 messageType;
- __u16 reserved;
-};
-
-/* FramingCapability Bitmap Values */
-#define PPTP_FRAME_CAP_ASYNC 0x1
-#define PPTP_FRAME_CAP_SYNC 0x2
-
-/* BearerCapability Bitmap Values */
-#define PPTP_BEARER_CAP_ANALOG 0x1
-#define PPTP_BEARER_CAP_DIGITAL 0x2
-
-struct PptpStartSessionRequest {
- __u16 protocolVersion;
- __u8 reserved1;
- __u8 reserved2;
- __u32 framingCapability;
- __u32 bearerCapability;
- __u16 maxChannels;
- __u16 firmwareRevision;
- __u8 hostName[64];
- __u8 vendorString[64];
-};
-
-/* PptpStartSessionResultCode Values */
-#define PPTP_START_OK 1
-#define PPTP_START_GENERAL_ERROR 2
-#define PPTP_START_ALREADY_CONNECTED 3
-#define PPTP_START_NOT_AUTHORIZED 4
-#define PPTP_START_UNKNOWN_PROTOCOL 5
-
-struct PptpStartSessionReply {
- __u16 protocolVersion;
- __u8 resultCode;
- __u8 generalErrorCode;
- __u32 framingCapability;
- __u32 bearerCapability;
- __u16 maxChannels;
- __u16 firmwareRevision;
- __u8 hostName[64];
- __u8 vendorString[64];
-};
-
-/* PptpStopReasons */
-#define PPTP_STOP_NONE 1
-#define PPTP_STOP_PROTOCOL 2
-#define PPTP_STOP_LOCAL_SHUTDOWN 3
-
-struct PptpStopSessionRequest {
- __u8 reason;
-};
-
-/* PptpStopSessionResultCode */
-#define PPTP_STOP_OK 1
-#define PPTP_STOP_GENERAL_ERROR 2
-
-struct PptpStopSessionReply {
- __u8 resultCode;
- __u8 generalErrorCode;
-};
-
-struct PptpEchoRequest {
- __u32 identNumber;
-};
-
-/* PptpEchoReplyResultCode */
-#define PPTP_ECHO_OK 1
-#define PPTP_ECHO_GENERAL_ERROR 2
-
-struct PptpEchoReply {
- __u32 identNumber;
- __u8 resultCode;
- __u8 generalErrorCode;
- __u16 reserved;
-};
-
-/* PptpFramingType */
-#define PPTP_ASYNC_FRAMING 1
-#define PPTP_SYNC_FRAMING 2
-#define PPTP_DONT_CARE_FRAMING 3
-
-/* PptpCallBearerType */
-#define PPTP_ANALOG_TYPE 1
-#define PPTP_DIGITAL_TYPE 2
-#define PPTP_DONT_CARE_BEARER_TYPE 3
-
-struct PptpOutCallRequest {
- __u16 callID;
- __u16 callSerialNumber;
- __u32 minBPS;
- __u32 maxBPS;
- __u32 bearerType;
- __u32 framingType;
- __u16 packetWindow;
- __u16 packetProcDelay;
- __u16 reserved1;
- __u16 phoneNumberLength;
- __u16 reserved2;
- __u8 phoneNumber[64];
- __u8 subAddress[64];
-};
-
-/* PptpCallResultCode */
-#define PPTP_OUTCALL_CONNECT 1
-#define PPTP_OUTCALL_GENERAL_ERROR 2
-#define PPTP_OUTCALL_NO_CARRIER 3
-#define PPTP_OUTCALL_BUSY 4
-#define PPTP_OUTCALL_NO_DIAL_TONE 5
-#define PPTP_OUTCALL_TIMEOUT 6
-#define PPTP_OUTCALL_DONT_ACCEPT 7
-
-struct PptpOutCallReply {
- __u16 callID;
- __u16 peersCallID;
- __u8 resultCode;
- __u8 generalErrorCode;
- __u16 causeCode;
- __u32 connectSpeed;
- __u16 packetWindow;
- __u16 packetProcDelay;
- __u32 physChannelID;
-};
-
-struct PptpInCallRequest {
- __u16 callID;
- __u16 callSerialNumber;
- __u32 callBearerType;
- __u32 physChannelID;
- __u16 dialedNumberLength;
- __u16 dialingNumberLength;
- __u8 dialedNumber[64];
- __u8 dialingNumber[64];
- __u8 subAddress[64];
-};
-
-/* PptpInCallResultCode */
-#define PPTP_INCALL_ACCEPT 1
-#define PPTP_INCALL_GENERAL_ERROR 2
-#define PPTP_INCALL_DONT_ACCEPT 3
-
-struct PptpInCallReply {
- __u16 callID;
- __u16 peersCallID;
- __u8 resultCode;
- __u8 generalErrorCode;
- __u16 packetWindow;
- __u16 packetProcDelay;
- __u16 reserved;
-};
-
-struct PptpInCallConnected {
- __u16 peersCallID;
- __u16 reserved;
- __u32 connectSpeed;
- __u16 packetWindow;
- __u16 packetProcDelay;
- __u32 callFramingType;
-};
-
-struct PptpClearCallRequest {
- __u16 callID;
- __u16 reserved;
-};
-
-struct PptpCallDisconnectNotify {
- __u16 callID;
- __u8 resultCode;
- __u8 generalErrorCode;
- __u16 causeCode;
- __u16 reserved;
- __u8 callStatistics[128];
-};
-
-struct PptpWanErrorNotify {
- __u16 peersCallID;
- __u16 reserved;
- __u32 crcErrors;
- __u32 framingErrors;
- __u32 hardwareOverRuns;
- __u32 bufferOverRuns;
- __u32 timeoutErrors;
- __u32 alignmentErrors;
-};
-
-struct PptpSetLinkInfo {
- __u16 peersCallID;
- __u16 reserved;
- __u32 sendAccm;
- __u32 recvAccm;
-};
-
-
-struct pptp_priv_data {
- __u16 call_id;
- __u16 mcall_id;
- __u16 pcall_id;
-};
-
-union pptp_ctrl_union {
- struct PptpStartSessionRequest sreq;
- struct PptpStartSessionReply srep;
- struct PptpStopSessionRequest streq;
- struct PptpStopSessionReply strep;
- struct PptpOutCallRequest ocreq;
- struct PptpOutCallReply ocack;
- struct PptpInCallRequest icreq;
- struct PptpInCallReply icack;
- struct PptpInCallConnected iccon;
- struct PptpClearCallRequest clrreq;
- struct PptpCallDisconnectNotify disc;
- struct PptpWanErrorNotify wanerr;
- struct PptpSetLinkInfo setlink;
-};
-
-#endif /* __KERNEL__ */
-#endif /* _CONNTRACK_PPTP_H */
diff --git a/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h b/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h
deleted file mode 100644
index 07646857c..000000000
--- a/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h
+++ /dev/null
@@ -1,123 +0,0 @@
-#ifndef _CONNTRACK_PROTO_GRE_H
-#define _CONNTRACK_PROTO_GRE_H
-#include <asm/byteorder.h>
-
-/* GRE PROTOCOL HEADER */
-
-/* GRE Version field */
-#define GRE_VERSION_1701 0x0
-#define GRE_VERSION_PPTP 0x1
-
-/* GRE Protocol field */
-#define GRE_PROTOCOL_PPTP 0x880B
-
-/* GRE Flags */
-#define GRE_FLAG_C 0x80
-#define GRE_FLAG_R 0x40
-#define GRE_FLAG_K 0x20
-#define GRE_FLAG_S 0x10
-#define GRE_FLAG_A 0x80
-
-#define GRE_IS_C(f) ((f)&GRE_FLAG_C)
-#define GRE_IS_R(f) ((f)&GRE_FLAG_R)
-#define GRE_IS_K(f) ((f)&GRE_FLAG_K)
-#define GRE_IS_S(f) ((f)&GRE_FLAG_S)
-#define GRE_IS_A(f) ((f)&GRE_FLAG_A)
-
-/* GRE is a mess: Four different standards */
-struct gre_hdr {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u16 rec:3,
- srr:1,
- seq:1,
- key:1,
- routing:1,
- csum:1,
- version:3,
- reserved:4,
- ack:1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- __u16 csum:1,
- routing:1,
- key:1,
- seq:1,
- srr:1,
- rec:3,
- ack:1,
- reserved:4,
- version:3;
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
- __u16 protocol;
-};
-
-/* modified GRE header for PPTP */
-struct gre_hdr_pptp {
- __u8 flags; /* bitfield */
- __u8 version; /* should be GRE_VERSION_PPTP */
- __u16 protocol; /* should be GRE_PROTOCOL_PPTP */
- __u16 payload_len; /* size of ppp payload, not inc. gre header */
- __u16 call_id; /* peer's call_id for this session */
- __u32 seq; /* sequence number. Present if S==1 */
- __u32 ack; /* seq number of highest packet recieved by */
- /* sender in this session */
-};
-
-
-/* this is part of ip_conntrack */
-struct ip_ct_gre {
- unsigned int stream_timeout;
- unsigned int timeout;
-};
-
-/* this is part of ip_conntrack_expect */
-struct ip_ct_gre_expect {
- struct ip_ct_gre_keymap *keymap_orig, *keymap_reply;
-};
-
-#ifdef __KERNEL__
-struct ip_conntrack_expect;
-
-/* structure for original <-> reply keymap */
-struct ip_ct_gre_keymap {
- struct list_head list;
-
- struct ip_conntrack_tuple tuple;
-};
-
-
-/* add new tuple->key_reply pair to keymap */
-int ip_ct_gre_keymap_add(struct ip_conntrack_expect *exp,
- struct ip_conntrack_tuple *t,
- int reply);
-
-/* change an existing keymap entry */
-void ip_ct_gre_keymap_change(struct ip_ct_gre_keymap *km,
- struct ip_conntrack_tuple *t);
-
-/* delete keymap entries */
-void ip_ct_gre_keymap_destroy(struct ip_conntrack_expect *exp);
-
-
-/* get pointer to gre key, if present */
-static inline u_int32_t *gre_key(struct gre_hdr *greh)
-{
- if (!greh->key)
- return NULL;
- if (greh->csum || greh->routing)
- return (u_int32_t *) (greh+sizeof(*greh)+4);
- return (u_int32_t *) (greh+sizeof(*greh));
-}
-
-/* get pointer ot gre csum, if present */
-static inline u_int16_t *gre_csum(struct gre_hdr *greh)
-{
- if (!greh->csum)
- return NULL;
- return (u_int16_t *) (greh+sizeof(*greh));
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* _CONNTRACK_PROTO_GRE_H */
diff --git a/include/linux/netfilter_ipv4/ip_nat_pptp.h b/include/linux/netfilter_ipv4/ip_nat_pptp.h
deleted file mode 100644
index eaf66c2e8..000000000
--- a/include/linux/netfilter_ipv4/ip_nat_pptp.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* PPTP constants and structs */
-#ifndef _NAT_PPTP_H
-#define _NAT_PPTP_H
-
-/* conntrack private data */
-struct ip_nat_pptp {
- u_int16_t pns_call_id; /* NAT'ed PNS call id */
- u_int16_t pac_call_id; /* NAT'ed PAC call id */
-};
-
-#endif /* _NAT_PPTP_H */
diff --git a/kernel/.cvsignore b/kernel/.cvsignore
new file mode 100644
index 000000000..21426e906
--- /dev/null
+++ b/kernel/.cvsignore
@@ -0,0 +1,2 @@
+config_data.gz
+config_data.h
diff --git a/kernel/itimer.c b/kernel/itimer.c
index 5bf6c881c..6918cb746 100644
--- a/kernel/itimer.c
+++ b/kernel/itimer.c
@@ -68,9 +68,7 @@ void it_real_fn(unsigned long __data)
struct task_struct * p = (struct task_struct *) __data;
unsigned long interval;
- if (send_group_sig_info(SIGALRM, SEND_SIG_PRIV, p))
- printk("*warning*: failed to send SIGALRM to %u\n", p->pid);
-
+ send_group_sig_info(SIGALRM, SEND_SIG_PRIV, p);
interval = p->it_real_incr;
if (interval) {
if (interval > (unsigned long) LONG_MAX)
diff --git a/kernel/signal.c b/kernel/signal.c
index e4282d2de..b3574b096 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -603,28 +603,17 @@ static int check_kill_permission(int sig, struct siginfo *info,
struct task_struct *t)
{
int error = -EINVAL;
- int user;
-
if (sig < 0 || sig > _NSIG)
return error;
-
- user = (!info ||
- (info != SEND_SIG_PRIV &&
- info != SEND_SIG_FORCED &&
- SI_FROMUSER(info)));
-
error = -EPERM;
- if (user && (sig != SIGCONT ||
- current->signal->session != t->signal->session)
+ if ((!info || ((unsigned long)info != 1 &&
+ (unsigned long)info != 2 && SI_FROMUSER(info)))
+ && ((sig != SIGCONT) ||
+ (current->signal->session != t->signal->session))
&& (current->euid ^ t->suid) && (current->euid ^ t->uid)
&& (current->uid ^ t->suid) && (current->uid ^ t->uid)
&& !capable(CAP_KILL))
return error;
-
- error = -ESRCH;
- if (user && !vx_check(vx_task_xid(t), VX_ADMIN|VX_IDENT))
- return error;
-
return security_task_kill(t, info, sig);
}
@@ -1066,6 +1055,9 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
unsigned long flags;
int ret;
+ if (!vx_check(vx_task_xid(p), VX_ADMIN|VX_WATCH|VX_IDENT))
+ return -ESRCH;
+
ret = check_kill_permission(sig, info, p);
if (!ret && sig && p->sighand) {
spin_lock_irqsave(&p->sighand->siglock, flags);
diff --git a/lib/.cvsignore b/lib/.cvsignore
new file mode 100644
index 000000000..30d38180f
--- /dev/null
+++ b/lib/.cvsignore
@@ -0,0 +1,2 @@
+crc32table.h
+gen_crc32table
diff --git a/net/ipv4/netfilter/ip_conntrack_pptp.c b/net/ipv4/netfilter/ip_conntrack_pptp.c
deleted file mode 100644
index 29ab1a495..000000000
--- a/net/ipv4/netfilter/ip_conntrack_pptp.c
+++ /dev/null
@@ -1,712 +0,0 @@
-/*
- * ip_conntrack_pptp.c - Version 2.0
- *
- * Connection tracking support for PPTP (Point to Point Tunneling Protocol).
- * PPTP is a a protocol for creating virtual private networks.
- * It is a specification defined by Microsoft and some vendors
- * working with Microsoft. PPTP is built on top of a modified
- * version of the Internet Generic Routing Encapsulation Protocol.
- * GRE is defined in RFC 1701 and RFC 1702. Documentation of
- * PPTP can be found in RFC 2637
- *
- * (C) 2000-2003 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- * Limitations:
- * - We blindly assume that control connections are always
- * established in PNS->PAC direction. This is a violation
- * of RFFC2673
- *
- * TODO: - finish support for multiple calls within one session
- * (needs expect reservations in newnat)
- * - testing of incoming PPTP calls
- *
- * Changes:
- * 2002-02-05 - Version 1.3
- * - Call ip_conntrack_unexpect_related() from
- * pptp_timeout_related() to destroy expectations in case
- * CALL_DISCONNECT_NOTIFY or tcp fin packet was seen
- * (Philip Craig <philipc@snapgear.com>)
- * - Add Version information at module loadtime
- * 2002-02-10 - Version 1.6
- * - move to C99 style initializers
- * - remove second expectation if first arrives
- * 2004-10-22 - Version 2.0
- * - merge Mandrake's 2.6.x port with recent 2.6.x API changes
- * - fix lots of linear skb assumptions from Mandrake's port
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-#define IP_CT_PPTP_VERSION "2.0"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter connection tracking helper module for PPTP");
-
-DECLARE_LOCK(ip_pptp_lock);
-
-#if 0
-#include "ip_conntrack_pptp_priv.h"
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s: " format, __FILE__, __FUNCTION__, ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-#define SECS *HZ
-#define MINS * 60 SECS
-#define HOURS * 60 MINS
-#define DAYS * 24 HOURS
-
-#define PPTP_GRE_TIMEOUT (10 MINS)
-#define PPTP_GRE_STREAM_TIMEOUT (5 DAYS)
-
-static int pptp_expectfn(struct ip_conntrack *ct)
-{
- struct ip_conntrack *master;
- struct ip_conntrack_expect *exp;
-
- DEBUGP("increasing timeouts\n");
- /* increase timeout of GRE data channel conntrack entry */
- ct->proto.gre.timeout = PPTP_GRE_TIMEOUT;
- ct->proto.gre.stream_timeout = PPTP_GRE_STREAM_TIMEOUT;
-
- master = master_ct(ct);
- if (!master) {
- DEBUGP(" no master!!!\n");
- return 0;
- }
-
- exp = ct->master;
- if (!exp) {
- DEBUGP("no expectation!!\n");
- return 0;
- }
-
- DEBUGP("completing tuples with ct info\n");
- /* we can do this, since we're unconfirmed */
- if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
- htonl(master->help.ct_pptp_info.pac_call_id)) {
- /* assume PNS->PAC */
- ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
- htonl(master->help.ct_pptp_info.pns_call_id);
- ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
- htonl(master->help.ct_pptp_info.pns_call_id);
- } else {
- /* assume PAC->PNS */
- ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
- htonl(master->help.ct_pptp_info.pac_call_id);
- ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
- htonl(master->help.ct_pptp_info.pac_call_id);
- }
-
- /* delete other expectation */
- if (exp->expected_list.next != &exp->expected_list) {
- struct ip_conntrack_expect *other_exp;
- struct list_head *cur_item, *next;
-
- for (cur_item = master->sibling_list.next;
- cur_item != &master->sibling_list; cur_item = next) {
- next = cur_item->next;
- other_exp = list_entry(cur_item,
- struct ip_conntrack_expect,
- expected_list);
- /* remove only if occurred at same sequence number */
- if (other_exp != exp && other_exp->seq == exp->seq) {
- DEBUGP("unexpecting other direction\n");
- ip_ct_gre_keymap_destroy(other_exp);
- ip_conntrack_unexpect_related(other_exp);
- }
- }
- }
-
- return 0;
-}
-
-/* timeout GRE data connections */
-static int pptp_timeout_related(struct ip_conntrack *ct)
-{
- struct list_head *cur_item, *next;
- struct ip_conntrack_expect *exp;
-
- /* FIXME: do we have to lock something ? */
- for (cur_item = ct->sibling_list.next;
- cur_item != &ct->sibling_list; cur_item = next) {
- next = cur_item->next;
- exp = list_entry(cur_item, struct ip_conntrack_expect,
- expected_list);
-
- ip_ct_gre_keymap_destroy(exp);
- if (!exp->sibling) {
- ip_conntrack_unexpect_related(exp);
- continue;
- }
-
- DEBUGP("setting timeout of conntrack %p to 0\n",
- exp->sibling);
- exp->sibling->proto.gre.timeout = 0;
- exp->sibling->proto.gre.stream_timeout = 0;
- /* refresh_acct will not modify counters if skb == NULL */
- ip_ct_refresh_acct(exp->sibling, 0, NULL, 0);
- }
-
- return 0;
-}
-
-/* expect GRE connections (PNS->PAC and PAC->PNS direction) */
-static inline int
-exp_gre(struct ip_conntrack *master,
- u_int32_t seq,
- u_int16_t callid,
- u_int16_t peer_callid)
-{
- struct ip_conntrack_tuple inv_tuple;
- struct ip_conntrack_tuple exp_tuples[] = {
- /* tuple in original direction, PNS->PAC */
- { .src = { .ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip,
- .u = { .gre = { .key = htonl(ntohs(peer_callid)) } }
- },
- .dst = { .ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip,
- .u = { .gre = { .key = htonl(ntohs(callid)) } },
- .protonum = IPPROTO_GRE
- },
- },
- /* tuple in reply direction, PAC->PNS */
- { .src = { .ip = master->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip,
- .u = { .gre = { .key = htonl(ntohs(callid)) } }
- },
- .dst = { .ip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip,
- .u = { .gre = { .key = htonl(ntohs(peer_callid)) } },
- .protonum = IPPROTO_GRE
- },
- }
- }, *exp_tuple;
-
- for (exp_tuple = exp_tuples; exp_tuple < &exp_tuples[2]; exp_tuple++) {
- struct ip_conntrack_expect *exp;
-
- exp = ip_conntrack_expect_alloc();
- if (exp == NULL)
- return 1;
-
- memcpy(&exp->tuple, exp_tuple, sizeof(exp->tuple));
-
- exp->mask.src.ip = 0xffffffff;
- exp->mask.src.u.all = 0;
- exp->mask.dst.u.all = 0;
- exp->mask.dst.u.gre.key = 0xffffffff;
- exp->mask.dst.ip = 0xffffffff;
- exp->mask.dst.protonum = 0xffff;
-
- exp->seq = seq;
- exp->expectfn = pptp_expectfn;
-
- exp->help.exp_pptp_info.pac_call_id = ntohs(callid);
- exp->help.exp_pptp_info.pns_call_id = ntohs(peer_callid);
-
- DEBUGP("calling expect_related ");
- DUMP_TUPLE_RAW(&exp->tuple);
-
- /* Add GRE keymap entries */
- if (ip_ct_gre_keymap_add(exp, &exp->tuple, 0) != 0) {
- kfree(exp);
- return 1;
- }
-
- invert_tuplepr(&inv_tuple, &exp->tuple);
- if (ip_ct_gre_keymap_add(exp, &inv_tuple, 1) != 0) {
- ip_ct_gre_keymap_destroy(exp);
- kfree(exp);
- return 1;
- }
-
- if (ip_conntrack_expect_related(exp, master) != 0) {
- ip_ct_gre_keymap_destroy(exp);
- kfree(exp);
- DEBUGP("cannot expect_related()\n");
- return 1;
- }
- }
-
- return 0;
-}
-
-static inline int
-pptp_inbound_pkt(struct sk_buff *skb,
- struct tcphdr *tcph,
- unsigned int ctlhoff,
- size_t datalen,
- struct ip_conntrack *ct)
-{
- struct PptpControlHeader _ctlh, *ctlh;
- unsigned int reqlen;
- union pptp_ctrl_union _pptpReq, *pptpReq;
- struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
- u_int16_t msg, *cid, *pcid;
- u_int32_t seq;
-
- ctlh = skb_header_pointer(skb, ctlhoff, sizeof(_ctlh), &_ctlh);
- if (unlikely(!ctlh)) {
- DEBUGP("error during skb_header_pointer\n");
- return NF_ACCEPT;
- }
-
- reqlen = datalen - sizeof(struct pptp_pkt_hdr) - sizeof(_ctlh);
- pptpReq = skb_header_pointer(skb, ctlhoff+sizeof(struct pptp_pkt_hdr),
- reqlen, &_pptpReq);
- if (unlikely(!pptpReq)) {
- DEBUGP("error during skb_header_pointer\n");
- return NF_ACCEPT;
- }
-
- msg = ntohs(ctlh->messageType);
- DEBUGP("inbound control message %s\n", strMName[msg]);
-
- switch (msg) {
- case PPTP_START_SESSION_REPLY:
- if (reqlen < sizeof(_pptpReq.srep)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* server confirms new control session */
- if (info->sstate < PPTP_SESSION_REQUESTED) {
- DEBUGP("%s without START_SESS_REQUEST\n",
- strMName[msg]);
- break;
- }
- if (pptpReq->srep.resultCode == PPTP_START_OK)
- info->sstate = PPTP_SESSION_CONFIRMED;
- else
- info->sstate = PPTP_SESSION_ERROR;
- break;
-
- case PPTP_STOP_SESSION_REPLY:
- if (reqlen < sizeof(_pptpReq.strep)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* server confirms end of control session */
- if (info->sstate > PPTP_SESSION_STOPREQ) {
- DEBUGP("%s without STOP_SESS_REQUEST\n",
- strMName[msg]);
- break;
- }
- if (pptpReq->strep.resultCode == PPTP_STOP_OK)
- info->sstate = PPTP_SESSION_NONE;
- else
- info->sstate = PPTP_SESSION_ERROR;
- break;
-
- case PPTP_OUT_CALL_REPLY:
- if (reqlen < sizeof(_pptpReq.ocack)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* server accepted call, we now expect GRE frames */
- if (info->sstate != PPTP_SESSION_CONFIRMED) {
- DEBUGP("%s but no session\n", strMName[msg]);
- break;
- }
- if (info->cstate != PPTP_CALL_OUT_REQ &&
- info->cstate != PPTP_CALL_OUT_CONF) {
- DEBUGP("%s without OUTCALL_REQ\n", strMName[msg]);
- break;
- }
- if (pptpReq->ocack.resultCode != PPTP_OUTCALL_CONNECT) {
- info->cstate = PPTP_CALL_NONE;
- break;
- }
-
- cid = &pptpReq->ocack.callID;
- pcid = &pptpReq->ocack.peersCallID;
-
- info->pac_call_id = ntohs(*cid);
-
- if (htons(info->pns_call_id) != *pcid) {
- DEBUGP("%s for unknown callid %u\n",
- strMName[msg], ntohs(*pcid));
- break;
- }
-
- DEBUGP("%s, CID=%X, PCID=%X\n", strMName[msg],
- ntohs(*cid), ntohs(*pcid));
-
- info->cstate = PPTP_CALL_OUT_CONF;
-
- seq = ntohl(tcph->seq) + sizeof(struct pptp_pkt_hdr)
- + sizeof(struct PptpControlHeader)
- + ((void *)pcid - (void *)pptpReq);
-
- if (exp_gre(ct, seq, *cid, *pcid) != 0)
- printk("ip_conntrack_pptp: error during exp_gre\n");
- break;
-
- case PPTP_IN_CALL_REQUEST:
- if (reqlen < sizeof(_pptpReq.icack)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* server tells us about incoming call request */
- if (info->sstate != PPTP_SESSION_CONFIRMED) {
- DEBUGP("%s but no session\n", strMName[msg]);
- break;
- }
- pcid = &pptpReq->icack.peersCallID;
- DEBUGP("%s, PCID=%X\n", strMName[msg], ntohs(*pcid));
- info->cstate = PPTP_CALL_IN_REQ;
- info->pac_call_id = ntohs(*pcid);
- break;
-
- case PPTP_IN_CALL_CONNECT:
- if (reqlen < sizeof(_pptpReq.iccon)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* server tells us about incoming call established */
- if (info->sstate != PPTP_SESSION_CONFIRMED) {
- DEBUGP("%s but no session\n", strMName[msg]);
- break;
- }
- if (info->sstate != PPTP_CALL_IN_REP
- && info->sstate != PPTP_CALL_IN_CONF) {
- DEBUGP("%s but never sent IN_CALL_REPLY\n",
- strMName[msg]);
- break;
- }
-
- pcid = &pptpReq->iccon.peersCallID;
- cid = &info->pac_call_id;
-
- if (info->pns_call_id != ntohs(*pcid)) {
- DEBUGP("%s for unknown CallID %u\n",
- strMName[msg], ntohs(*cid));
- break;
- }
-
- DEBUGP("%s, PCID=%X\n", strMName[msg], ntohs(*pcid));
- info->cstate = PPTP_CALL_IN_CONF;
-
- /* we expect a GRE connection from PAC to PNS */
- seq = ntohl(tcph->seq) + sizeof(struct pptp_pkt_hdr)
- + sizeof(struct PptpControlHeader)
- + ((void *)pcid - (void *)pptpReq);
-
- if (exp_gre(ct, seq, *cid, *pcid) != 0)
- printk("ip_conntrack_pptp: error during exp_gre\n");
-
- break;
-
- case PPTP_CALL_DISCONNECT_NOTIFY:
- if (reqlen < sizeof(_pptpReq.disc)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* server confirms disconnect */
- cid = &pptpReq->disc.callID;
- DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*cid));
- info->cstate = PPTP_CALL_NONE;
-
- /* untrack this call id, unexpect GRE packets */
- pptp_timeout_related(ct);
- break;
-
- case PPTP_WAN_ERROR_NOTIFY:
- break;
-
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* I don't have to explain these ;) */
- break;
- default:
- DEBUGP("invalid %s (TY=%d)\n", (msg <= PPTP_MSG_MAX)
- ? strMName[msg]:strMName[0], msg);
- break;
- }
-
- return NF_ACCEPT;
-
-}
-
-static inline int
-pptp_outbound_pkt(struct sk_buff *skb,
- struct tcphdr *tcph,
- unsigned int ctlhoff,
- size_t datalen,
- struct ip_conntrack *ct)
-{
- struct PptpControlHeader _ctlh, *ctlh;
- unsigned int reqlen;
- union pptp_ctrl_union _pptpReq, *pptpReq;
- struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
- u_int16_t msg, *cid, *pcid;
-
- ctlh = skb_header_pointer(skb, ctlhoff, sizeof(_ctlh), &_ctlh);
- if (!ctlh)
- return NF_ACCEPT;
-
- reqlen = datalen - sizeof(struct pptp_pkt_hdr) - sizeof(_ctlh);
- pptpReq = skb_header_pointer(skb, ctlhoff+sizeof(_ctlh), reqlen,
- &_pptpReq);
- if (!pptpReq)
- return NF_ACCEPT;
-
- msg = ntohs(ctlh->messageType);
- DEBUGP("outbound control message %s\n", strMName[msg]);
-
- switch (msg) {
- case PPTP_START_SESSION_REQUEST:
- /* client requests for new control session */
- if (info->sstate != PPTP_SESSION_NONE) {
- DEBUGP("%s but we already have one",
- strMName[msg]);
- }
- info->sstate = PPTP_SESSION_REQUESTED;
- break;
- case PPTP_STOP_SESSION_REQUEST:
- /* client requests end of control session */
- info->sstate = PPTP_SESSION_STOPREQ;
- break;
-
- case PPTP_OUT_CALL_REQUEST:
- if (reqlen < sizeof(_pptpReq.ocreq)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* client initiating connection to server */
- if (info->sstate != PPTP_SESSION_CONFIRMED) {
- DEBUGP("%s but no session\n",
- strMName[msg]);
- break;
- }
- info->cstate = PPTP_CALL_OUT_REQ;
- /* track PNS call id */
- cid = &pptpReq->ocreq.callID;
- DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*cid));
- info->pns_call_id = ntohs(*cid);
- break;
- case PPTP_IN_CALL_REPLY:
- if (reqlen < sizeof(_pptpReq.icack)) {
- DEBUGP("%s: short packet\n", strMName[msg]);
- break;
- }
-
- /* client answers incoming call */
- if (info->cstate != PPTP_CALL_IN_REQ
- && info->cstate != PPTP_CALL_IN_REP) {
- DEBUGP("%s without incall_req\n",
- strMName[msg]);
- break;
- }
- if (pptpReq->icack.resultCode != PPTP_INCALL_ACCEPT) {
- info->cstate = PPTP_CALL_NONE;
- break;
- }
- pcid = &pptpReq->icack.peersCallID;
- if (info->pac_call_id != ntohs(*pcid)) {
- DEBUGP("%s for unknown call %u\n",
- strMName[msg], ntohs(*pcid));
- break;
- }
- DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*pcid));
- /* part two of the three-way handshake */
- info->cstate = PPTP_CALL_IN_REP;
- info->pns_call_id = ntohs(pptpReq->icack.callID);
- break;
-
- case PPTP_CALL_CLEAR_REQUEST:
- /* client requests hangup of call */
- if (info->sstate != PPTP_SESSION_CONFIRMED) {
- DEBUGP("CLEAR_CALL but no session\n");
- break;
- }
- /* FUTURE: iterate over all calls and check if
- * call ID is valid. We don't do this without newnat,
- * because we only know about last call */
- info->cstate = PPTP_CALL_CLEAR_REQ;
- break;
- case PPTP_SET_LINK_INFO:
- break;
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* I don't have to explain these ;) */
- break;
- default:
- DEBUGP("invalid %s (TY=%d)\n", (msg <= PPTP_MSG_MAX)?
- strMName[msg]:strMName[0], msg);
- /* unknown: no need to create GRE masq table entry */
- break;
- }
-
- return NF_ACCEPT;
-}
-
-
-/* track caller id inside control connection, call expect_related */
-static int
-conntrack_pptp_help(struct sk_buff *skb,
- struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-
-{
- struct pptp_pkt_hdr _pptph, *pptph;
-
- struct tcphdr _tcph, *tcph;
- u_int32_t tcplen = skb->len - skb->nh.iph->ihl * 4;
- u_int32_t datalen;
- void *datalimit;
- int dir = CTINFO2DIR(ctinfo);
- struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
- unsigned int nexthdr_off;
-
- int oldsstate, oldcstate;
- int ret;
-
- /* don't do any tracking before tcp handshake complete */
- if (ctinfo != IP_CT_ESTABLISHED
- && ctinfo != IP_CT_ESTABLISHED+IP_CT_IS_REPLY) {
- DEBUGP("ctinfo = %u, skipping\n", ctinfo);
- return NF_ACCEPT;
- }
-
- nexthdr_off = skb->nh.iph->ihl*4;
- tcph = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_tcph),
- &_tcph);
- if (!tcph)
- return NF_ACCEPT;
-
- /* not a complete TCP header? */
- if (tcplen < sizeof(struct tcphdr) || tcplen < tcph->doff * 4) {
- DEBUGP("tcplen = %u\n", tcplen);
- return NF_ACCEPT;
- }
-
-
- datalen = tcplen - tcph->doff * 4;
-
- /* checksum invalid? */
- if (tcp_v4_check(tcph, tcplen, skb->nh.iph->saddr, skb->nh.iph->daddr,
- csum_partial((char *) tcph, tcplen, 0))) {
- printk(KERN_NOTICE __FILE__ ": bad csum\n");
- /* W2K PPTP server sends TCP packets with wrong checksum :(( */
- //return NF_ACCEPT;
- }
-
- if (tcph->fin || tcph->rst) {
- DEBUGP("RST/FIN received, timeouting GRE\n");
- /* can't do this after real newnat */
- info->cstate = PPTP_CALL_NONE;
-
- /* untrack this call id, unexpect GRE packets */
- pptp_timeout_related(ct);
- }
-
- nexthdr_off += tcph->doff*4;
- pptph = skb_header_pointer(skb, skb->nh.iph->ihl*4 + tcph->doff*4,
- sizeof(_pptph), &_pptph);
- if (!pptph) {
- DEBUGP("no full PPTP header, can't track\n");
- return NF_ACCEPT;
- }
-
- datalimit = (void *) pptph + datalen;
-
- /* if it's not a control message we can't do anything with it */
- if (ntohs(pptph->packetType) != PPTP_PACKET_CONTROL ||
- ntohl(pptph->magicCookie) != PPTP_MAGIC_COOKIE) {
- DEBUGP("not a control packet\n");
- return NF_ACCEPT;
- }
-
- oldsstate = info->sstate;
- oldcstate = info->cstate;
-
- LOCK_BH(&ip_pptp_lock);
-
- nexthdr_off += sizeof(_pptph);
- /* FIXME: We just blindly assume that the control connection is always
- * established from PNS->PAC. However, RFC makes no guarantee */
- if (dir == IP_CT_DIR_ORIGINAL)
- /* client -> server (PNS -> PAC) */
- ret = pptp_outbound_pkt(skb, tcph, nexthdr_off, datalen, ct);
- else
- /* server -> client (PAC -> PNS) */
- ret = pptp_inbound_pkt(skb, tcph, nexthdr_off, datalen, ct);
- DEBUGP("sstate: %d->%d, cstate: %d->%d\n",
- oldsstate, info->sstate, oldcstate, info->cstate);
- UNLOCK_BH(&ip_pptp_lock);
-
- return ret;
-}
-
-/* control protocol helper */
-static struct ip_conntrack_helper pptp = {
- .list = { NULL, NULL },
- .name = "pptp",
- .flags = IP_CT_HELPER_F_REUSE_EXPECT,
- .me = THIS_MODULE,
- .max_expected = 2,
- .timeout = 0,
- .tuple = { .src = { .ip = 0,
- .u = { .tcp = { .port =
- __constant_htons(PPTP_CONTROL_PORT) } }
- },
- .dst = { .ip = 0,
- .u = { .all = 0 },
- .protonum = IPPROTO_TCP
- }
- },
- .mask = { .src = { .ip = 0,
- .u = { .tcp = { .port = 0xffff } }
- },
- .dst = { .ip = 0,
- .u = { .all = 0 },
- .protonum = 0xffff
- }
- },
- .help = conntrack_pptp_help
-};
-
-/* ip_conntrack_pptp initialization */
-static int __init init(void)
-{
- int retcode;
-
- DEBUGP(__FILE__ ": registering helper\n");
- if ((retcode = ip_conntrack_helper_register(&pptp))) {
- printk(KERN_ERR "Unable to register conntrack application "
- "helper for pptp: %d\n", retcode);
- return -EIO;
- }
-
- printk("ip_conntrack_pptp version %s loaded\n", IP_CT_PPTP_VERSION);
- return 0;
-}
-
-static void __exit fini(void)
-{
- ip_conntrack_helper_unregister(&pptp);
- printk("ip_conntrack_pptp version %s unloaded\n", IP_CT_PPTP_VERSION);
-}
-
-module_init(init);
-module_exit(fini);
-
-EXPORT_SYMBOL(ip_pptp_lock);
diff --git a/net/ipv4/netfilter/ip_conntrack_pptp_priv.h b/net/ipv4/netfilter/ip_conntrack_pptp_priv.h
deleted file mode 100644
index 6b52564e8..000000000
--- a/net/ipv4/netfilter/ip_conntrack_pptp_priv.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef _IP_CT_PPTP_PRIV_H
-#define _IP_CT_PPTP_PRIV_H
-
-/* PptpControlMessageType names */
-static const char *strMName[] = {
- "UNKNOWN_MESSAGE",
- "START_SESSION_REQUEST",
- "START_SESSION_REPLY",
- "STOP_SESSION_REQUEST",
- "STOP_SESSION_REPLY",
- "ECHO_REQUEST",
- "ECHO_REPLY",
- "OUT_CALL_REQUEST",
- "OUT_CALL_REPLY",
- "IN_CALL_REQUEST",
- "IN_CALL_REPLY",
- "IN_CALL_CONNECT",
- "CALL_CLEAR_REQUEST",
- "CALL_DISCONNECT_NOTIFY",
- "WAN_ERROR_NOTIFY",
- "SET_LINK_INFO"
-};
-
-#endif
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_gre.c b/net/ipv4/netfilter/ip_conntrack_proto_gre.c
deleted file mode 100644
index 013f759cc..000000000
--- a/net/ipv4/netfilter/ip_conntrack_proto_gre.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * ip_conntrack_proto_gre.c - Version 2.0
- *
- * Connection tracking protocol helper module for GRE.
- *
- * GRE is a generic encapsulation protocol, which is generally not very
- * suited for NAT, as it has no protocol-specific part as port numbers.
- *
- * It has an optional key field, which may help us distinguishing two
- * connections between the same two hosts.
- *
- * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784
- *
- * PPTP is built on top of a modified version of GRE, and has a mandatory
- * field called "CallID", which serves us for the same purpose as the key
- * field in plain GRE.
- *
- * Documentation about PPTP can be found in RFC 2637
- *
- * (C) 2000-2004 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/in.h>
-#include <linux/list.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-
-DECLARE_RWLOCK(ip_ct_gre_lock);
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_ct_gre_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_ct_gre_lock)
-
-#include <linux/netfilter_ipv4/listhelp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("netfilter connection tracking protocol helper for GRE");
-
-/* shamelessly stolen from ip_conntrack_proto_udp.c */
-#define GRE_TIMEOUT (30*HZ)
-#define GRE_STREAM_TIMEOUT (180*HZ)
-
-#if 0
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s: " format, __FILE__, __FUNCTION__, ## args)
-#define DUMP_TUPLE_GRE(x) printk("%u.%u.%u.%u:0x%x -> %u.%u.%u.%u:0x%x\n", \
- NIPQUAD((x)->src.ip), ntohl((x)->src.u.gre.key), \
- NIPQUAD((x)->dst.ip), ntohl((x)->dst.u.gre.key))
-#else
-#define DEBUGP(x, args...)
-#define DUMP_TUPLE_GRE(x)
-#endif
-
-/* GRE KEYMAP HANDLING FUNCTIONS */
-static LIST_HEAD(gre_keymap_list);
-
-static inline int gre_key_cmpfn(const struct ip_ct_gre_keymap *km,
- const struct ip_conntrack_tuple *t)
-{
- return ((km->tuple.src.ip == t->src.ip) &&
- (km->tuple.dst.ip == t->dst.ip) &&
- (km->tuple.dst.protonum == t->dst.protonum) &&
- (km->tuple.dst.u.all == t->dst.u.all));
-}
-
-/* look up the source key for a given tuple */
-static u_int32_t gre_keymap_lookup(struct ip_conntrack_tuple *t)
-{
- struct ip_ct_gre_keymap *km;
- u_int32_t key;
-
- READ_LOCK(&ip_ct_gre_lock);
- km = LIST_FIND(&gre_keymap_list, gre_key_cmpfn,
- struct ip_ct_gre_keymap *, t);
- if (!km) {
- READ_UNLOCK(&ip_ct_gre_lock);
- return 0;
- }
-
- key = km->tuple.src.u.gre.key;
- READ_UNLOCK(&ip_ct_gre_lock);
-
- return key;
-}
-
-/* add a single keymap entry, associate with specified expect */
-int ip_ct_gre_keymap_add(struct ip_conntrack_expect *exp,
- struct ip_conntrack_tuple *t, int reply)
-{
- struct ip_ct_gre_keymap *km;
-
- km = kmalloc(sizeof(*km), GFP_ATOMIC);
- if (!km)
- return -1;
-
- /* initializing list head should be sufficient */
- memset(km, 0, sizeof(*km));
-
- memcpy(&km->tuple, t, sizeof(*t));
-
- if (!reply)
- exp->proto.gre.keymap_orig = km;
- else
- exp->proto.gre.keymap_reply = km;
-
- DEBUGP("adding new entry %p: ", km);
- DUMP_TUPLE_GRE(&km->tuple);
-
- WRITE_LOCK(&ip_ct_gre_lock);
- list_append(&gre_keymap_list, km);
- WRITE_UNLOCK(&ip_ct_gre_lock);
-
- return 0;
-}
-
-/* change the tuple of a keymap entry (used by nat helper) */
-void ip_ct_gre_keymap_change(struct ip_ct_gre_keymap *km,
- struct ip_conntrack_tuple *t)
-{
- if (!km)
- {
- printk(KERN_WARNING
- "NULL GRE conntrack keymap change requested\n");
- return;
- }
-
- DEBUGP("changing entry %p to: ", km);
- DUMP_TUPLE_GRE(t);
-
- WRITE_LOCK(&ip_ct_gre_lock);
- memcpy(&km->tuple, t, sizeof(km->tuple));
- WRITE_UNLOCK(&ip_ct_gre_lock);
-}
-
-/* destroy the keymap entries associated with specified expect */
-void ip_ct_gre_keymap_destroy(struct ip_conntrack_expect *exp)
-{
- DEBUGP("entering for exp %p\n", exp);
- WRITE_LOCK(&ip_ct_gre_lock);
- if (exp->proto.gre.keymap_orig) {
- DEBUGP("removing %p from list\n", exp->proto.gre.keymap_orig);
- list_del(&exp->proto.gre.keymap_orig->list);
- kfree(exp->proto.gre.keymap_orig);
- exp->proto.gre.keymap_orig = NULL;
- }
- if (exp->proto.gre.keymap_reply) {
- DEBUGP("removing %p from list\n", exp->proto.gre.keymap_reply);
- list_del(&exp->proto.gre.keymap_reply->list);
- kfree(exp->proto.gre.keymap_reply);
- exp->proto.gre.keymap_reply = NULL;
- }
- WRITE_UNLOCK(&ip_ct_gre_lock);
-}
-
-
-/* PUBLIC CONNTRACK PROTO HELPER FUNCTIONS */
-
-/* invert gre part of tuple */
-static int gre_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- tuple->dst.u.gre.key = orig->src.u.gre.key;
- tuple->src.u.gre.key = orig->dst.u.gre.key;
-
- return 1;
-}
-
-/* gre hdr info to tuple */
-static int gre_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- struct gre_hdr _grehdr, *grehdr;
- struct gre_hdr_pptp _pgrehdr, *pgrehdr;
- u_int32_t srckey;
-
- grehdr = skb_header_pointer(skb, dataoff, sizeof(_grehdr), &_grehdr);
- /* PPTP header is variable length, only need up to the call_id field */
- pgrehdr = skb_header_pointer(skb, dataoff, 8, &_pgrehdr);
-
- if (!grehdr || !pgrehdr)
- return 0;
-
- switch (grehdr->version) {
- case GRE_VERSION_1701:
- if (!grehdr->key) {
- DEBUGP("Can't track GRE without key\n");
- return 0;
- }
- tuple->dst.u.gre.key = *(gre_key(grehdr));
- break;
-
- case GRE_VERSION_PPTP:
- if (ntohs(grehdr->protocol) != GRE_PROTOCOL_PPTP) {
- DEBUGP("GRE_VERSION_PPTP but unknown proto\n");
- return 0;
- }
- tuple->dst.u.gre.key = htonl(ntohs(pgrehdr->call_id));
- break;
-
- default:
- printk(KERN_WARNING "unknown GRE version %hu\n",
- grehdr->version);
- return 0;
- }
-
- srckey = gre_keymap_lookup(tuple);
-
- tuple->src.u.gre.key = srckey;
-#if 0
- DEBUGP("found src key %x for tuple ", ntohl(srckey));
- DUMP_TUPLE_GRE(tuple);
-#endif
-
- return 1;
-}
-
-/* print gre part of tuple */
-static unsigned int gre_print_tuple(char *buffer,
- const struct ip_conntrack_tuple *tuple)
-{
- return sprintf(buffer, "srckey=0x%x dstkey=0x%x ",
- ntohl(tuple->src.u.gre.key),
- ntohl(tuple->dst.u.gre.key));
-}
-
-/* print private data for conntrack */
-static unsigned int gre_print_conntrack(char *buffer,
- const struct ip_conntrack *ct)
-{
- return sprintf(buffer, "timeout=%u, stream_timeout=%u ",
- (ct->proto.gre.timeout / HZ),
- (ct->proto.gre.stream_timeout / HZ));
-}
-
-/* Returns verdict for packet, and may modify conntrack */
-static int gre_packet(struct ip_conntrack *ct,
- const struct sk_buff *skb,
- enum ip_conntrack_info conntrackinfo)
-{
- /* If we've seen traffic both ways, this is a GRE connection.
- * Extend timeout. */
- if (ct->status & IPS_SEEN_REPLY) {
- ip_ct_refresh_acct(ct, conntrackinfo, skb,
- ct->proto.gre.stream_timeout);
- /* Also, more likely to be important, and not a probe. */
- set_bit(IPS_ASSURED_BIT, &ct->status);
- } else
- ip_ct_refresh_acct(ct, conntrackinfo, skb,
- ct->proto.gre.timeout);
-
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int gre_new(struct ip_conntrack *ct,
- const struct sk_buff *skb)
-{
- DEBUGP(": ");
- DUMP_TUPLE_GRE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-
- /* initialize to sane value. Ideally a conntrack helper
- * (e.g. in case of pptp) is increasing them */
- ct->proto.gre.stream_timeout = GRE_STREAM_TIMEOUT;
- ct->proto.gre.timeout = GRE_TIMEOUT;
-
- return 1;
-}
-
-/* Called when a conntrack entry has already been removed from the hashes
- * and is about to be deleted from memory */
-static void gre_destroy(struct ip_conntrack *ct)
-{
- struct ip_conntrack_expect *master = ct->master;
-
- DEBUGP(" entering\n");
-
- if (!master) {
- DEBUGP("no master exp for ct %p\n", ct);
- return;
- }
-
- ip_ct_gre_keymap_destroy(master);
-}
-
-/* protocol helper struct */
-static struct ip_conntrack_protocol gre = {
- .proto = IPPROTO_GRE,
- .name = "gre",
- .pkt_to_tuple = gre_pkt_to_tuple,
- .invert_tuple = gre_invert_tuple,
- .print_tuple = gre_print_tuple,
- .print_conntrack = gre_print_conntrack,
- .packet = gre_packet,
- .new = gre_new,
- .destroy = gre_destroy,
- .exp_matches_pkt = NULL,
- .me = THIS_MODULE
-};
-
-/* ip_conntrack_proto_gre initialization */
-static int __init init(void)
-{
- int retcode;
-
- if ((retcode = ip_conntrack_protocol_register(&gre))) {
- printk(KERN_ERR "Unable to register conntrack protocol "
- "helper for gre: %d\n", retcode);
- return -EIO;
- }
-
- return 0;
-}
-
-static void __exit fini(void)
-{
- struct list_head *pos, *n;
-
- /* delete all keymap entries */
- WRITE_LOCK(&ip_ct_gre_lock);
- list_for_each_safe(pos, n, &gre_keymap_list) {
- DEBUGP("deleting keymap %p at module unload time\n", pos);
- list_del(pos);
- kfree(pos);
- }
- WRITE_UNLOCK(&ip_ct_gre_lock);
-
- ip_conntrack_protocol_unregister(&gre);
-}
-
-EXPORT_SYMBOL(ip_ct_gre_keymap_add);
-EXPORT_SYMBOL(ip_ct_gre_keymap_change);
-EXPORT_SYMBOL(ip_ct_gre_keymap_destroy);
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv4/netfilter/ip_nat_pptp.c b/net/ipv4/netfilter/ip_nat_pptp.c
deleted file mode 100644
index 2bbb815e9..000000000
--- a/net/ipv4/netfilter/ip_nat_pptp.c
+++ /dev/null
@@ -1,477 +0,0 @@
-/*
- * ip_nat_pptp.c - Version 2.0
- *
- * NAT support for PPTP (Point to Point Tunneling Protocol).
- * PPTP is a a protocol for creating virtual private networks.
- * It is a specification defined by Microsoft and some vendors
- * working with Microsoft. PPTP is built on top of a modified
- * version of the Internet Generic Routing Encapsulation Protocol.
- * GRE is defined in RFC 1701 and RFC 1702. Documentation of
- * PPTP can be found in RFC 2637
- *
- * (C) 2000-2004 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- * TODO: - Support for multiple calls within one session
- * (needs netfilter newnat code)
- * - NAT to a unique tuple, not to TCP source port
- * (needs netfilter tuple reservation)
- *
- * Changes:
- * 2002-02-10 - Version 1.3
- * - Use ip_nat_mangle_tcp_packet() because of cloned skb's
- * in local connections (Philip Craig <philipc@snapgear.com>)
- * - add checks for magicCookie and pptp version
- * - make argument list of pptp_{out,in}bound_packet() shorter
- * - move to C99 style initializers
- * - print version number at module loadtime
- * 2003-09-22 - Version 1.5
- * - use SNATed tcp sourceport as callid, since we get called before
- * TCP header is mangled (Philip Craig <philipc@snapgear.com>)
- * 2004-10-22 - Version 2.0
- * - kernel 2.6.x version
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_pptp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-#define IP_NAT_PPTP_VERSION "2.0"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter NAT helper module for PPTP");
-
-
-#if 0
-#include "ip_conntrack_pptp_priv.h"
-#define DEBUGP(format, args...) printk(KERN_DEBUG __FILE__ ":" __FUNCTION__ \
- ": " format, ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-static unsigned int
-pptp_nat_expected(struct sk_buff **pskb,
- unsigned int hooknum,
- struct ip_conntrack *ct,
- struct ip_nat_info *info)
-{
- struct ip_conntrack *master = master_ct(ct);
- struct ip_nat_multi_range mr;
- struct ip_ct_pptp_master *ct_pptp_info;
- struct ip_nat_pptp *nat_pptp_info;
- u_int32_t newip, newcid;
- int ret;
-
- IP_NF_ASSERT(info);
- IP_NF_ASSERT(master);
- IP_NF_ASSERT(!(info->initialized & (1 << HOOK2MANIP(hooknum))));
-
- DEBUGP("we have a connection!\n");
-
- LOCK_BH(&ip_pptp_lock);
- ct_pptp_info = &master->help.ct_pptp_info;
- nat_pptp_info = &master->nat.help.nat_pptp_info;
-
- /* need to alter GRE tuple because conntrack expectfn() used 'wrong'
- * (unmanipulated) values */
- if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_DST) {
- DEBUGP("completing tuples with NAT info \n");
- /* we can do this, since we're unconfirmed */
- if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
- htonl(ct_pptp_info->pac_call_id)) {
- /* assume PNS->PAC */
- ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
- htonl(nat_pptp_info->pns_call_id);
- ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
- htonl(nat_pptp_info->pns_call_id);
- newip = master->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
- newcid = htonl(nat_pptp_info->pac_call_id);
- } else {
- /* assume PAC->PNS */
- ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
- htonl(nat_pptp_info->pac_call_id);
- ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
- htonl(nat_pptp_info->pac_call_id);
- newip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
- newcid = htonl(nat_pptp_info->pns_call_id);
- }
- } else {
- if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
- htonl(ct_pptp_info->pac_call_id)) {
- /* assume PNS->PAC */
- newip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
- newcid = htonl(ct_pptp_info->pns_call_id);
- }
- else {
- /* assume PAC->PNS */
- newip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
- newcid = htonl(ct_pptp_info->pac_call_id);
- }
- }
-
- mr.rangesize = 1;
- mr.range[0].flags = IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED;
- mr.range[0].min_ip = mr.range[0].max_ip = newip;
- mr.range[0].min = mr.range[0].max =
- ((union ip_conntrack_manip_proto ) { newcid });
- DEBUGP("change ip to %u.%u.%u.%u\n",
- NIPQUAD(newip));
- DEBUGP("change key to 0x%x\n", ntohl(newcid));
- ret = ip_nat_setup_info(ct, &mr, hooknum);
-
- UNLOCK_BH(&ip_pptp_lock);
-
- return ret;
-
-}
-
-/* outbound packets == from PNS to PAC */
-static inline unsigned int
-pptp_outbound_pkt(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp)
-
-{
- struct iphdr *iph = (*pskb)->nh.iph;
- struct tcphdr *tcph = (void *) iph + iph->ihl*4;
- struct pptp_pkt_hdr *pptph = (struct pptp_pkt_hdr *)
- ((void *)tcph + tcph->doff*4);
-
- struct PptpControlHeader *ctlh;
- union pptp_ctrl_union *pptpReq;
- struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
- struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-
- u_int16_t msg, *cid = NULL, new_callid;
-
- /* FIXME: size checks !!! */
- ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
- pptpReq = (void *) ((void *) ctlh + sizeof(*ctlh));
-
- new_callid = htons(ct_pptp_info->pns_call_id);
-
- switch (msg = ntohs(ctlh->messageType)) {
- case PPTP_OUT_CALL_REQUEST:
- cid = &pptpReq->ocreq.callID;
- /* FIXME: ideally we would want to reserve a call ID
- * here. current netfilter NAT core is not able to do
- * this :( For now we use TCP source port. This breaks
- * multiple calls within one control session */
-
- /* save original call ID in nat_info */
- nat_pptp_info->pns_call_id = ct_pptp_info->pns_call_id;
-
- /* don't use tcph->source since we are at a DSTmanip
- * hook (e.g. PREROUTING) and pkt is not mangled yet */
- new_callid = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.tcp.port;
-
- /* save new call ID in ct info */
- ct_pptp_info->pns_call_id = ntohs(new_callid);
- break;
- case PPTP_IN_CALL_REPLY:
- cid = &pptpReq->icreq.callID;
- break;
- case PPTP_CALL_CLEAR_REQUEST:
- cid = &pptpReq->clrreq.callID;
- break;
- default:
- DEBUGP("unknown outbound packet 0x%04x:%s\n", msg,
- (msg <= PPTP_MSG_MAX)? strMName[msg]:strMName[0]);
- /* fall through */
-
- case PPTP_SET_LINK_INFO:
- /* only need to NAT in case PAC is behind NAT box */
- case PPTP_START_SESSION_REQUEST:
- case PPTP_START_SESSION_REPLY:
- case PPTP_STOP_SESSION_REQUEST:
- case PPTP_STOP_SESSION_REPLY:
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* no need to alter packet */
- return NF_ACCEPT;
- }
-
- IP_NF_ASSERT(cid);
-
- DEBUGP("altering call id from 0x%04x to 0x%04x\n",
- ntohs(*cid), ntohs(new_callid));
-
- /* mangle packet */
- ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, (void *)cid - (void *)pptph,
- sizeof(new_callid), (char *)&new_callid,
- sizeof(new_callid));
-
- return NF_ACCEPT;
-}
-
-/* inbound packets == from PAC to PNS */
-static inline unsigned int
-pptp_inbound_pkt(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *oldexp)
-{
- struct iphdr *iph = (*pskb)->nh.iph;
- struct tcphdr *tcph = (void *) iph + iph->ihl*4;
- struct pptp_pkt_hdr *pptph = (struct pptp_pkt_hdr *)
- ((void *)tcph + tcph->doff*4);
-
- struct PptpControlHeader *ctlh;
- union pptp_ctrl_union *pptpReq;
- struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
- struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-
- u_int16_t msg, new_cid = 0, new_pcid, *pcid = NULL, *cid = NULL;
- u_int32_t old_dst_ip;
-
- struct ip_conntrack_tuple t, inv_t;
- struct ip_conntrack_tuple *orig_t, *reply_t;
-
- /* FIXME: size checks !!! */
- ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
- pptpReq = (void *) ((void *) ctlh + sizeof(*ctlh));
-
- new_pcid = htons(nat_pptp_info->pns_call_id);
-
- switch (msg = ntohs(ctlh->messageType)) {
- case PPTP_OUT_CALL_REPLY:
- pcid = &pptpReq->ocack.peersCallID;
- cid = &pptpReq->ocack.callID;
- if (!oldexp) {
- DEBUGP("outcall but no expectation\n");
- break;
- }
- old_dst_ip = oldexp->tuple.dst.ip;
- t = oldexp->tuple;
- invert_tuplepr(&inv_t, &t);
-
- /* save original PAC call ID in nat_info */
- nat_pptp_info->pac_call_id = ct_pptp_info->pac_call_id;
-
- /* alter expectation */
- orig_t = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
- reply_t = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
- if (t.src.ip == orig_t->src.ip && t.dst.ip == orig_t->dst.ip) {
- /* expectation for PNS->PAC direction */
- t.src.u.gre.key = htonl(nat_pptp_info->pns_call_id);
- t.dst.u.gre.key = htonl(ct_pptp_info->pac_call_id);
- inv_t.src.ip = reply_t->src.ip;
- inv_t.dst.ip = reply_t->dst.ip;
- inv_t.src.u.gre.key = htonl(nat_pptp_info->pac_call_id);
- inv_t.dst.u.gre.key = htonl(ct_pptp_info->pns_call_id);
- } else {
- /* expectation for PAC->PNS direction */
- t.src.u.gre.key = htonl(nat_pptp_info->pac_call_id);
- t.dst.u.gre.key = htonl(ct_pptp_info->pns_call_id);
- inv_t.src.ip = orig_t->src.ip;
- inv_t.dst.ip = orig_t->dst.ip;
- inv_t.src.u.gre.key = htonl(nat_pptp_info->pns_call_id);
- inv_t.dst.u.gre.key = htonl(ct_pptp_info->pac_call_id);
- }
-
- if (!ip_conntrack_change_expect(oldexp, &t)) {
- DEBUGP("successfully changed expect\n");
- } else {
- DEBUGP("can't change expect\n");
- }
- ip_ct_gre_keymap_change(oldexp->proto.gre.keymap_orig, &t);
- ip_ct_gre_keymap_change(oldexp->proto.gre.keymap_reply, &inv_t);
- break;
- case PPTP_IN_CALL_CONNECT:
- pcid = &pptpReq->iccon.peersCallID;
- if (!oldexp)
- break;
- old_dst_ip = oldexp->tuple.dst.ip;
- t = oldexp->tuple;
-
- /* alter expectation, no need for callID */
- if (t.dst.ip == ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip) {
- /* expectation for PNS->PAC direction */
- t.src.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
- } else {
- /* expectation for PAC->PNS direction */
- t.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
- }
-
- if (!ip_conntrack_change_expect(oldexp, &t)) {
- DEBUGP("successfully changed expect\n");
- } else {
- DEBUGP("can't change expect\n");
- }
- break;
- case PPTP_IN_CALL_REQUEST:
- /* only need to nat in case PAC is behind NAT box */
- break;
- case PPTP_WAN_ERROR_NOTIFY:
- pcid = &pptpReq->wanerr.peersCallID;
- break;
- case PPTP_CALL_DISCONNECT_NOTIFY:
- pcid = &pptpReq->disc.callID;
- break;
-
- default:
- DEBUGP("unknown inbound packet %s\n",
- (msg <= PPTP_MSG_MAX)? strMName[msg]:strMName[0]);
- /* fall through */
-
- case PPTP_START_SESSION_REQUEST:
- case PPTP_START_SESSION_REPLY:
- case PPTP_STOP_SESSION_REQUEST:
- case PPTP_STOP_SESSION_REPLY:
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* no need to alter packet */
- return NF_ACCEPT;
- }
-
- /* mangle packet */
- IP_NF_ASSERT(pcid);
- DEBUGP("altering peer call id from 0x%04x to 0x%04x\n",
- ntohs(*pcid), ntohs(new_pcid));
- ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, (void *)pcid - (void *)pptph,
- sizeof(new_pcid), (char *)&new_pcid,
- sizeof(new_pcid));
-
- if (new_cid) {
- IP_NF_ASSERT(cid);
- DEBUGP("altering call id from 0x%04x to 0x%04x\n",
- ntohs(*cid), ntohs(new_cid));
- ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
- (void *)cid - (void *)pptph,
- sizeof(new_cid), (char *)&new_cid,
- sizeof(new_cid));
- }
-
- /* great, at least we don't need to resize packets */
- return NF_ACCEPT;
-}
-
-
-static unsigned int tcp_help(struct ip_conntrack *ct,
- struct ip_conntrack_expect *exp,
- struct ip_nat_info *info,
- enum ip_conntrack_info ctinfo,
- unsigned int hooknum, struct sk_buff **pskb)
-{
- struct iphdr *iph = (*pskb)->nh.iph;
- struct tcphdr *tcph = (void *) iph + iph->ihl*4;
- unsigned int datalen = (*pskb)->len - iph->ihl*4 - tcph->doff*4;
- struct pptp_pkt_hdr *pptph;
-
- int dir;
-
- DEBUGP("entering\n");
-
- /* Only mangle things once: DST for original direction
- and SRC for reply direction. */
- dir = CTINFO2DIR(ctinfo);
- if (!((HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
- && dir == IP_CT_DIR_ORIGINAL)
- || (HOOK2MANIP(hooknum) == IP_NAT_MANIP_DST
- && dir == IP_CT_DIR_REPLY))) {
- DEBUGP("Not touching dir %s at hook %s\n",
- dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
- hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
- : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
- : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT"
- : hooknum == NF_IP_LOCAL_IN ? "INPUT" : "???");
- return NF_ACCEPT;
- }
-
- /* if packet is too small, just skip it */
- if (datalen < sizeof(struct pptp_pkt_hdr)+
- sizeof(struct PptpControlHeader)) {
- DEBUGP("pptp packet too short\n");
- return NF_ACCEPT;
- }
-
- pptph = (struct pptp_pkt_hdr *) ((void *)tcph + tcph->doff*4);
-
- /* if it's not a control message, we can't handle it */
- if (ntohs(pptph->packetType) != PPTP_PACKET_CONTROL ||
- ntohl(pptph->magicCookie) != PPTP_MAGIC_COOKIE) {
- DEBUGP("not a pptp control packet\n");
- return NF_ACCEPT;
- }
-
- LOCK_BH(&ip_pptp_lock);
-
- if (dir == IP_CT_DIR_ORIGINAL) {
- /* reuqests sent by client to server (PNS->PAC) */
- pptp_outbound_pkt(pskb, ct, ctinfo, exp);
- } else {
- /* response from the server to the client (PAC->PNS) */
- pptp_inbound_pkt(pskb, ct, ctinfo, exp);
- }
-
- UNLOCK_BH(&ip_pptp_lock);
-
- return NF_ACCEPT;
-}
-
-/* nat helper struct for control connection */
-static struct ip_nat_helper pptp_tcp_helper = {
- .list = { NULL, NULL },
- .name = "pptp",
- .flags = IP_NAT_HELPER_F_ALWAYS,
- .me = THIS_MODULE,
- .tuple = { .src = { .ip = 0,
- .u = { .tcp = { .port =
- __constant_htons(PPTP_CONTROL_PORT) }
- }
- },
- .dst = { .ip = 0,
- .u = { .all = 0 },
- .protonum = IPPROTO_TCP
- }
- },
-
- .mask = { .src = { .ip = 0,
- .u = { .tcp = { .port = 0xFFFF } }
- },
- .dst = { .ip = 0,
- .u = { .all = 0 },
- .protonum = 0xFFFF
- }
- },
- .help = tcp_help,
- .expect = pptp_nat_expected
-};
-
-
-static int __init init(void)
-{
- DEBUGP("%s: registering NAT helper\n", __FILE__);
- if (ip_nat_helper_register(&pptp_tcp_helper)) {
- printk(KERN_ERR "Unable to register NAT application helper "
- "for pptp\n");
- return -EIO;
- }
-
- printk("ip_nat_pptp version %s loaded\n", IP_NAT_PPTP_VERSION);
- return 0;
-}
-
-static void __exit fini(void)
-{
- DEBUGP("cleanup_module\n" );
- ip_nat_helper_unregister(&pptp_tcp_helper);
- printk("ip_nat_pptp version %s unloaded\n", IP_NAT_PPTP_VERSION);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv4/netfilter/ip_nat_proto_gre.c b/net/ipv4/netfilter/ip_nat_proto_gre.c
deleted file mode 100644
index 5691a102a..000000000
--- a/net/ipv4/netfilter/ip_nat_proto_gre.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * ip_nat_proto_gre.c - Version 2.0
- *
- * NAT protocol helper module for GRE.
- *
- * GRE is a generic encapsulation protocol, which is generally not very
- * suited for NAT, as it has no protocol-specific part as port numbers.
- *
- * It has an optional key field, which may help us distinguishing two
- * connections between the same two hosts.
- *
- * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784
- *
- * PPTP is built on top of a modified version of GRE, and has a mandatory
- * field called "CallID", which serves us for the same purpose as the key
- * field in plain GRE.
- *
- * Documentation about PPTP can be found in RFC 2637
- *
- * (C) 2000-2004 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter NAT protocol helper module for GRE");
-
-#if 0
-#define DEBUGP(format, args...) printk(KERN_DEBUG __FILE__ ":" __FUNCTION__ \
- ": " format, ## args)
-#else
-#define DEBUGP(x, args...)
-#endif
-
-/* is key in given range between min and max */
-static int
-gre_in_range(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max)
-{
- u_int32_t key;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- key = tuple->src.u.gre.key;
- else
- key = tuple->dst.u.gre.key;
-
- return ntohl(key) >= ntohl(min->gre.key)
- && ntohl(key) <= ntohl(max->gre.key);
-}
-
-/* generate unique tuple ... */
-static int
-gre_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack)
-{
- u_int32_t min, i, range_size;
- u_int32_t key = 0, *keyptr;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- keyptr = &tuple->src.u.gre.key;
- else
- keyptr = &tuple->dst.u.gre.key;
-
- if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
- DEBUGP("%p: NATing GRE PPTP\n", conntrack);
- min = 1;
- range_size = 0xffff;
- } else {
- min = ntohl(range->min.gre.key);
- range_size = ntohl(range->max.gre.key) - min + 1;
- }
-
- DEBUGP("min = %u, range_size = %u\n", min, range_size);
-
- for (i = 0; i < range_size; i++, key++) {
- *keyptr = htonl(min + key % range_size);
- if (!ip_nat_used_tuple(tuple, conntrack))
- return 1;
- }
-
- DEBUGP("%p: no NAT mapping\n", conntrack);
-
- return 0;
-}
-
-/* manipulate a GRE packet according to maniptype */
-static int
-gre_manip_pkt(struct sk_buff **pskb,
- unsigned int hdroff,
- const struct ip_conntrack_manip *manip,
- enum ip_nat_manip_type maniptype)
-{
- struct gre_hdr *greh;
- struct gre_hdr_pptp *pgreh;
-
- if (!skb_ip_make_writable(pskb, hdroff + sizeof(*pgreh)))
- return 0;
-
- greh = (void *)(*pskb)->data + hdroff;
- pgreh = (struct gre_hdr_pptp *) greh;
-
- /* we only have destination manip of a packet, since 'source key'
- * is not present in the packet itself */
- if (maniptype == IP_NAT_MANIP_DST) {
- /* key manipulation is always dest */
- switch (greh->version) {
- case 0:
- if (!greh->key) {
- DEBUGP("can't nat GRE w/o key\n");
- break;
- }
- if (greh->csum) {
- /* FIXME: Never tested this code... */
- *(gre_csum(greh)) =
- ip_nat_cheat_check(~*(gre_key(greh)),
- manip->u.gre.key,
- *(gre_csum(greh)));
- }
- *(gre_key(greh)) = manip->u.gre.key;
- break;
- case GRE_VERSION_PPTP:
- DEBUGP("call_id -> 0x%04x\n",
- ntohl(manip->u.gre.key));
- pgreh->call_id = htons(ntohl(manip->u.gre.key));
- break;
- default:
- DEBUGP("can't nat unknown GRE version\n");
- return 0;
- break;
- }
- }
- return 1;
-}
-
-/* print out a nat tuple */
-static unsigned int
-gre_print(char *buffer,
- const struct ip_conntrack_tuple *match,
- const struct ip_conntrack_tuple *mask)
-{
- unsigned int len = 0;
-
- if (mask->src.u.gre.key)
- len += sprintf(buffer + len, "srckey=0x%x ",
- ntohl(match->src.u.gre.key));
-
- if (mask->dst.u.gre.key)
- len += sprintf(buffer + len, "dstkey=0x%x ",
- ntohl(match->src.u.gre.key));
-
- return len;
-}
-
-/* print a range of keys */
-static unsigned int
-gre_print_range(char *buffer, const struct ip_nat_range *range)
-{
- if (range->min.gre.key != 0
- || range->max.gre.key != 0xFFFF) {
- if (range->min.gre.key == range->max.gre.key)
- return sprintf(buffer, "key 0x%x ",
- ntohl(range->min.gre.key));
- else
- return sprintf(buffer, "keys 0x%u-0x%u ",
- ntohl(range->min.gre.key),
- ntohl(range->max.gre.key));
- } else
- return 0;
-}
-
-/* nat helper struct */
-static struct ip_nat_protocol gre = {
- .name = "GRE",
- .protonum = IPPROTO_GRE,
- .manip_pkt = gre_manip_pkt,
- .in_range = gre_in_range,
- .unique_tuple = gre_unique_tuple,
- .print = gre_print,
- .print_range = gre_print_range
-};
-
-static int __init init(void)
-{
- if (ip_nat_protocol_register(&gre))
- return -EIO;
-
- return 0;
-}
-
-static void __exit fini(void)
-{
- ip_nat_protocol_unregister(&gre);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/scripts/.cvsignore b/scripts/.cvsignore
new file mode 100644
index 000000000..d95bc0ab8
--- /dev/null
+++ b/scripts/.cvsignore
@@ -0,0 +1,4 @@
+bin2c
+conmakehash
+kallsyms
+pnmtologo
diff --git a/scripts/basic/.cvsignore b/scripts/basic/.cvsignore
new file mode 100644
index 000000000..fa6c88800
--- /dev/null
+++ b/scripts/basic/.cvsignore
@@ -0,0 +1,3 @@
+docproc
+fixdep
+split-include
diff --git a/scripts/kconfig/.cvsignore b/scripts/kconfig/.cvsignore
new file mode 100644
index 000000000..37981a9ca
--- /dev/null
+++ b/scripts/kconfig/.cvsignore
@@ -0,0 +1,5 @@
+conf
+lex.zconf.c
+mconf
+zconf.tab.c
+zconf.tab.h
diff --git a/scripts/kernel-2.6-planetlab.spec b/scripts/kernel-2.6-planetlab.spec
index 4e2be569b..84f9f996d 100644
--- a/scripts/kernel-2.6-planetlab.spec
+++ b/scripts/kernel-2.6-planetlab.spec
@@ -22,7 +22,7 @@ Summary: The Linux kernel (the core of the Linux operating system)
%define kversion 2.6.%{sublevel}
%define rpmversion 2.6.%{sublevel}
%define rhbsys %([ -r /etc/beehive-root ] && echo || echo .`whoami`)
-%define release 1.521.2.6.planetlab%{?date:.%{date}}
+%define release 1.521.3.planetlab%{?date:.%{date}}
%define signmodules 0
%define KVERREL %{PACKAGE_VERSION}-%{PACKAGE_RELEASE}
diff --git a/scripts/lxdialog/.cvsignore b/scripts/lxdialog/.cvsignore
new file mode 100644
index 000000000..bebf29560
--- /dev/null
+++ b/scripts/lxdialog/.cvsignore
@@ -0,0 +1 @@
+lxdialog
diff --git a/scripts/mod/.cvsignore b/scripts/mod/.cvsignore
new file mode 100644
index 000000000..a6dd5e27e
--- /dev/null
+++ b/scripts/mod/.cvsignore
@@ -0,0 +1,3 @@
+elfconfig.h
+mk_elfconfig
+modpost
diff --git a/usr/.cvsignore b/usr/.cvsignore
new file mode 100644
index 000000000..d06dfff84
--- /dev/null
+++ b/usr/.cvsignore
@@ -0,0 +1,3 @@
+gen_init_cpio
+initramfs_data.cpio
+initramfs_data.cpio.gz
--
2.47.0