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This is TOMOYO Linux patch for kernel 2.4.34.6. |
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|
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Source code for this patch is http://www.kernel.org/pub/linux/kernel/v2.4/linux-2.4.34.6.tar.bz2 |
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--- |
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Makefile | 8 ++++++++ |
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arch/alpha/kernel/ptrace.c | 3 +++ |
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arch/arm/kernel/ptrace.c | 3 +++ |
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arch/cris/kernel/ptrace.c | 3 +++ |
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arch/i386/kernel/ptrace.c | 3 +++ |
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arch/ia64/ia32/sys_ia32.c | 3 +++ |
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arch/ia64/kernel/ptrace.c | 3 +++ |
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arch/m68k/kernel/ptrace.c | 3 +++ |
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arch/mips/kernel/ptrace.c | 3 +++ |
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arch/mips64/kernel/ptrace.c | 5 +++++ |
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arch/parisc/kernel/ptrace.c | 3 +++ |
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arch/ppc/kernel/ptrace.c | 3 +++ |
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arch/ppc64/kernel/ptrace.c | 3 +++ |
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arch/ppc64/kernel/ptrace32.c | 3 +++ |
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arch/s390/kernel/ptrace.c | 3 +++ |
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arch/s390x/kernel/ptrace.c | 3 +++ |
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arch/sh/kernel/ptrace.c | 3 +++ |
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arch/sh64/kernel/ptrace.c | 3 +++ |
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arch/sparc/kernel/ptrace.c | 5 +++++ |
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arch/sparc64/kernel/ptrace.c | 5 +++++ |
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arch/x86_64/ia32/ptrace32.c | 3 +++ |
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arch/x86_64/kernel/ptrace.c | 3 +++ |
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fs/Config.in | 3 +++ |
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fs/exec.c | 12 +++++++++++- |
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fs/fcntl.c | 5 +++++ |
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fs/ioctl.c | 6 ++++++ |
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fs/namei.c | 36 ++++++++++++++++++++++++++++++++++++ |
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fs/namespace.c | 17 +++++++++++++++++ |
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fs/open.c | 27 +++++++++++++++++++++++++++ |
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fs/proc/proc_misc.c | 1 + |
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include/linux/sched.h | 14 ++++++++++++++ |
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kernel/kmod.c | 5 +++++ |
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kernel/module.c | 7 +++++++ |
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kernel/sched.c | 3 +++ |
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kernel/signal.c | 7 +++++++ |
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kernel/sys.c | 9 +++++++++ |
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kernel/sysctl.c | 13 ++++++++++++- |
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kernel/time.c | 7 +++++++ |
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net/ipv4/raw.c | 12 +++++++++--- |
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net/ipv4/tcp_ipv4.c | 5 +++++ |
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net/ipv4/udp.c | 14 +++++++++++++- |
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net/ipv6/raw.c | 12 +++++++++--- |
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net/ipv6/tcp_ipv6.c | 3 +++ |
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net/ipv6/udp.c | 14 +++++++++++++- |
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net/socket.c | 23 +++++++++++++++++++++-- |
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net/unix/af_unix.c | 9 +++++++++ |
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46 files changed, 329 insertions(+), 12 deletions(-) |
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|
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--- linux-2.4.34.6.orig/Makefile |
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+++ linux-2.4.34.6/Makefile |
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@@ -135,6 +135,14 @@ NETWORKS =net/network.o |
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LIBS =$(TOPDIR)/lib/lib.a |
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SUBDIRS =kernel drivers mm fs net ipc lib crypto |
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+ifdef CONFIG_CCSECURITY |
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+SUBDIRS += security/ccsecurity |
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+ifdef CONFIG_CCSECURITY_LKM |
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+CORE_FILES += security/ccsecurity/load_policy.o |
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+else |
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+CORE_FILES += security/ccsecurity/ccsecurity.o |
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+endif |
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+endif |
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DRIVERS-n := |
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DRIVERS-y := |
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--- linux-2.4.34.6.orig/arch/alpha/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/alpha/kernel/ptrace.c |
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@@ -18,6 +18,7 @@ |
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#include <asm/pgtable.h> |
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#include <asm/system.h> |
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#include <asm/fpu.h> |
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+#include <linux/ccsecurity.h> |
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|
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#include "proto.h" |
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|
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@@ -251,6 +252,8 @@ sys_ptrace(long request, long pid, long |
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{ |
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struct task_struct *child; |
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long ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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DBG(DBG_MEM, ("request=%ld pid=%ld addr=0x%lx data=0x%lx\n", |
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--- linux-2.4.34.6.orig/arch/arm/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/arm/kernel/ptrace.c |
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@@ -22,6 +22,7 @@ |
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#include <asm/uaccess.h> |
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#include <asm/pgtable.h> |
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#include <asm/system.h> |
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+#include <linux/ccsecurity.h> |
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|
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#include "ptrace.h" |
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@@ -695,6 +696,8 @@ asmlinkage int sys_ptrace(long request, |
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{ |
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struct task_struct *child; |
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int ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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ret = -EPERM; |
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--- linux-2.4.34.6.orig/arch/cris/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/cris/kernel/ptrace.c |
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@@ -48,6 +48,7 @@ |
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#include <asm/pgtable.h> |
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#include <asm/system.h> |
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#include <asm/processor.h> |
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+#include <linux/ccsecurity.h> |
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|
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/* |
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* does not yet catch signals sent when the child dies. |
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@@ -104,6 +105,8 @@ asmlinkage int sys_ptrace(long request, |
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{ |
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struct task_struct *child; |
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int ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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ret = -EPERM; |
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--- linux-2.4.34.6.orig/arch/i386/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/i386/kernel/ptrace.c |
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@@ -20,6 +20,7 @@ |
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#include <asm/processor.h> |
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#include <asm/i387.h> |
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#include <asm/debugreg.h> |
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+#include <linux/ccsecurity.h> |
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|
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/* |
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* does not yet catch signals sent when the child dies. |
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@@ -152,6 +153,8 @@ asmlinkage int sys_ptrace(long request, |
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struct task_struct *child; |
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struct user * dummy = NULL; |
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int i, ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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ret = -EPERM; |
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--- linux-2.4.34.6.orig/arch/ia64/ia32/sys_ia32.c |
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+++ linux-2.4.34.6/arch/ia64/ia32/sys_ia32.c |
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@@ -57,6 +57,7 @@ |
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#include <net/scm.h> |
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#include <net/sock.h> |
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#include <asm/ia32.h> |
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+#include <linux/ccsecurity.h> |
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|
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#define DEBUG 0 |
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@@ -3131,6 +3132,8 @@ sys32_ptrace (int request, pid_t pid, un |
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struct task_struct *child; |
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unsigned int value, tmp; |
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long i, ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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lock_kernel(); |
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if (request == PTRACE_TRACEME) { |
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kumaneko |
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--- linux-2.4.34.6.orig/arch/ia64/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/ia64/kernel/ptrace.c |
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@@ -27,6 +27,7 @@ |
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#ifdef CONFIG_PERFMON |
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#include <asm/perfmon.h> |
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#endif |
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+#include <linux/ccsecurity.h> |
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|
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#define offsetof(type,field) ((unsigned long) &((type *) 0)->field) |
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@@ -1273,6 +1274,8 @@ sys_ptrace (long request, pid_t pid, uns |
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struct task_struct *child; |
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struct switch_stack *sw; |
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long ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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ret = -EPERM; |
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--- linux-2.4.34.6.orig/arch/m68k/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/m68k/kernel/ptrace.c |
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@@ -25,6 +25,7 @@ |
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#include <asm/pgtable.h> |
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#include <asm/system.h> |
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#include <asm/processor.h> |
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+#include <linux/ccsecurity.h> |
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|
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/* |
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* does not yet catch signals sent when the child dies. |
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@@ -104,6 +105,8 @@ asmlinkage int sys_ptrace(long request, |
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{ |
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struct task_struct *child; |
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int ret; |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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ret = -EPERM; |
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kumaneko |
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--- linux-2.4.34.6.orig/arch/mips/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/mips/kernel/ptrace.c |
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@@ -28,6 +28,7 @@ |
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#include <asm/bootinfo.h> |
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#include <asm/cpu.h> |
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#include <asm/fpu.h> |
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+#include <linux/ccsecurity.h> |
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|
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/* |
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* Called by kernel/ptrace.c when detaching.. |
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@@ -43,6 +44,8 @@ asmlinkage int sys_ptrace(long request, |
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{ |
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struct task_struct *child; |
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int ret; |
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kumaneko |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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#if 0 |
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--- linux-2.4.34.6.orig/arch/mips64/kernel/ptrace.c |
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+++ linux-2.4.34.6/arch/mips64/kernel/ptrace.c |
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@@ -30,6 +30,7 @@ |
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#include <asm/system.h> |
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#include <asm/uaccess.h> |
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#include <asm/bootinfo.h> |
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+#include <linux/ccsecurity.h> |
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|
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/* |
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* Called by kernel/ptrace.c when detaching.. |
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@@ -49,6 +50,8 @@ asmlinkage int sys32_ptrace(int request, |
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{ |
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struct task_struct *child; |
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int ret; |
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kumaneko |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
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lock_kernel(); |
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ret = -EPERM; |
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kumaneko |
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@@ -288,6 +291,8 @@ asmlinkage int sys_ptrace(long request, |
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{ |
243 |
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struct task_struct *child; |
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int ret; |
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kumaneko |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
248 |
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lock_kernel(); |
249 |
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#if 0 |
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kumaneko |
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--- linux-2.4.34.6.orig/arch/parisc/kernel/ptrace.c |
251 |
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+++ linux-2.4.34.6/arch/parisc/kernel/ptrace.c |
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@@ -21,6 +21,7 @@ |
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#include <asm/system.h> |
254 |
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#include <asm/processor.h> |
255 |
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#include <asm/offset.h> |
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+#include <linux/ccsecurity.h> |
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|
258 |
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/* These are used in entry.S, syscall_restore_rfi. We need to record the |
259 |
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* current stepping mode somewhere other than in PSW, because there is no |
260 |
kumaneko |
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@@ -94,6 +95,8 @@ long sys_ptrace(long request, pid_t pid, |
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#ifdef DEBUG_PTRACE |
262 |
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long oaddr=addr, odata=data; |
263 |
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#endif |
264 |
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+ if (ccs_ptrace_permission(request, pid)) |
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+ return -EPERM; |
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|
267 |
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lock_kernel(); |
268 |
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ret = -EPERM; |
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kumaneko |
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--- linux-2.4.34.6.orig/arch/ppc/kernel/ptrace.c |
270 |
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+++ linux-2.4.34.6/arch/ppc/kernel/ptrace.c |
271 |
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@@ -29,6 +29,7 @@ |
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#include <asm/page.h> |
273 |
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#include <asm/pgtable.h> |
274 |
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#include <asm/system.h> |
275 |
kumaneko |
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+#include <linux/ccsecurity.h> |
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kumaneko |
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|
277 |
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/* |
278 |
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* Set of msr bits that gdb can change on behalf of a process. |
279 |
kumaneko |
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@@ -171,6 +172,8 @@ int sys_ptrace(long request, long pid, l |
280 |
kumaneko |
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{ |
281 |
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struct task_struct *child; |
282 |
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int ret = -EPERM; |
283 |
kumaneko |
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+ if (ccs_ptrace_permission(request, pid)) |
284 |
kumaneko |
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+ return -EPERM; |
285 |
kumaneko |
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|
286 |
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lock_kernel(); |
287 |
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if (request == PTRACE_TRACEME) { |
288 |
kumaneko |
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--- linux-2.4.34.6.orig/arch/ppc64/kernel/ptrace.c |
289 |
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+++ linux-2.4.34.6/arch/ppc64/kernel/ptrace.c |
290 |
kumaneko |
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@@ -30,6 +30,7 @@ |
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kumaneko |
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#include <asm/page.h> |
292 |
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#include <asm/pgtable.h> |
293 |
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#include <asm/system.h> |
294 |
kumaneko |
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+#include <linux/ccsecurity.h> |
295 |
kumaneko |
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|
296 |
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/* |
297 |
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* Set of msr bits that gdb can change on behalf of a process. |
298 |
kumaneko |
2796 |
@@ -120,6 +121,8 @@ int sys_ptrace(long request, long pid, l |
299 |
kumaneko |
863 |
{ |
300 |
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struct task_struct *child; |
301 |
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int ret = -EPERM; |
302 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
303 |
kumaneko |
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+ return -EPERM; |
304 |
kumaneko |
863 |
|
305 |
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lock_kernel(); |
306 |
|
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if (request == PTRACE_TRACEME) { |
307 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/ppc64/kernel/ptrace32.c |
308 |
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+++ linux-2.4.34.6/arch/ppc64/kernel/ptrace32.c |
309 |
kumaneko |
2796 |
@@ -30,6 +30,7 @@ |
310 |
kumaneko |
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#include <asm/page.h> |
311 |
|
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#include <asm/pgtable.h> |
312 |
|
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#include <asm/system.h> |
313 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
314 |
kumaneko |
1187 |
|
315 |
|
|
#ifdef CONFIG_ALTIVEC |
316 |
|
|
/* |
317 |
kumaneko |
2796 |
@@ -121,6 +122,8 @@ int sys32_ptrace(long request, long pid, |
318 |
kumaneko |
1187 |
{ |
319 |
|
|
struct task_struct *child; |
320 |
|
|
int ret = -EPERM; |
321 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
322 |
kumaneko |
1187 |
+ return -EPERM; |
323 |
|
|
|
324 |
|
|
lock_kernel(); |
325 |
|
|
if (request == PTRACE_TRACEME) { |
326 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/s390/kernel/ptrace.c |
327 |
|
|
+++ linux-2.4.34.6/arch/s390/kernel/ptrace.c |
328 |
kumaneko |
2796 |
@@ -37,6 +37,7 @@ |
329 |
kumaneko |
863 |
#include <asm/pgalloc.h> |
330 |
|
|
#include <asm/system.h> |
331 |
|
|
#include <asm/uaccess.h> |
332 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
333 |
kumaneko |
863 |
|
334 |
|
|
|
335 |
|
|
void FixPerRegisters(struct task_struct *task) |
336 |
kumaneko |
2796 |
@@ -221,6 +222,8 @@ asmlinkage int sys_ptrace(long request, |
337 |
kumaneko |
863 |
unsigned long tmp; |
338 |
|
|
int copied; |
339 |
|
|
ptrace_area parea; |
340 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
341 |
kumaneko |
1151 |
+ return -EPERM; |
342 |
kumaneko |
863 |
|
343 |
|
|
lock_kernel(); |
344 |
|
|
if (request == PTRACE_TRACEME) |
345 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/s390x/kernel/ptrace.c |
346 |
|
|
+++ linux-2.4.34.6/arch/s390x/kernel/ptrace.c |
347 |
kumaneko |
2796 |
@@ -43,6 +43,7 @@ |
348 |
kumaneko |
863 |
#else |
349 |
|
|
#define parent_31bit 0 |
350 |
|
|
#endif |
351 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
352 |
kumaneko |
863 |
|
353 |
|
|
|
354 |
|
|
void FixPerRegisters(struct task_struct *task) |
355 |
kumaneko |
2796 |
@@ -431,6 +432,8 @@ asmlinkage int sys_ptrace(long request, |
356 |
kumaneko |
863 |
#define sizeof_parent_long 8 |
357 |
|
|
#define dataptr (u8 *)&data |
358 |
|
|
#endif |
359 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
360 |
kumaneko |
1151 |
+ return -EPERM; |
361 |
kumaneko |
863 |
lock_kernel(); |
362 |
|
|
if (request == PTRACE_TRACEME) |
363 |
|
|
{ |
364 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/sh/kernel/ptrace.c |
365 |
|
|
+++ linux-2.4.34.6/arch/sh/kernel/ptrace.c |
366 |
kumaneko |
2796 |
@@ -26,6 +26,7 @@ |
367 |
kumaneko |
863 |
#include <asm/system.h> |
368 |
|
|
#include <asm/processor.h> |
369 |
|
|
#include <asm/mmu_context.h> |
370 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
371 |
kumaneko |
863 |
|
372 |
|
|
/* |
373 |
|
|
* does not yet catch signals sent when the child dies. |
374 |
kumaneko |
2796 |
@@ -144,6 +145,8 @@ asmlinkage int sys_ptrace(long request, |
375 |
kumaneko |
863 |
struct task_struct *child, *tsk = current; |
376 |
|
|
struct user * dummy = NULL; |
377 |
|
|
int ret; |
378 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
379 |
kumaneko |
1151 |
+ return -EPERM; |
380 |
kumaneko |
863 |
|
381 |
|
|
lock_kernel(); |
382 |
|
|
ret = -EPERM; |
383 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/sh64/kernel/ptrace.c |
384 |
|
|
+++ linux-2.4.34.6/arch/sh64/kernel/ptrace.c |
385 |
kumaneko |
2796 |
@@ -32,6 +32,7 @@ |
386 |
kumaneko |
863 |
#include <asm/system.h> |
387 |
|
|
#include <asm/processor.h> |
388 |
|
|
#include <asm/mmu_context.h> |
389 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
390 |
kumaneko |
863 |
|
391 |
|
|
/* This mask defines the bits of the SR which the user is not allowed to |
392 |
|
|
change, which are everything except S, Q, M, PR, SZ, FR. */ |
393 |
kumaneko |
2796 |
@@ -122,6 +123,8 @@ asmlinkage int sys_ptrace(long request, |
394 |
kumaneko |
863 |
{ |
395 |
|
|
struct task_struct *child, *tsk = current; |
396 |
|
|
int ret; |
397 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
398 |
kumaneko |
1151 |
+ return -EPERM; |
399 |
kumaneko |
863 |
|
400 |
|
|
lock_kernel(); |
401 |
|
|
ret = -EPERM; |
402 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/sparc/kernel/ptrace.c |
403 |
|
|
+++ linux-2.4.34.6/arch/sparc/kernel/ptrace.c |
404 |
kumaneko |
2796 |
@@ -21,6 +21,7 @@ |
405 |
kumaneko |
863 |
#include <asm/pgtable.h> |
406 |
|
|
#include <asm/system.h> |
407 |
|
|
#include <asm/uaccess.h> |
408 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
409 |
kumaneko |
863 |
|
410 |
|
|
#define MAGIC_CONSTANT 0x80000000 |
411 |
|
|
|
412 |
kumaneko |
2796 |
@@ -262,6 +263,10 @@ asmlinkage void do_ptrace(struct pt_regs |
413 |
kumaneko |
863 |
unsigned long data = regs->u_regs[UREG_I3]; |
414 |
|
|
unsigned long addr2 = regs->u_regs[UREG_I4]; |
415 |
|
|
struct task_struct *child; |
416 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) { |
417 |
kumaneko |
877 |
+ pt_error_return(regs, EPERM); |
418 |
|
|
+ return; |
419 |
|
|
+ } |
420 |
kumaneko |
863 |
|
421 |
|
|
lock_kernel(); |
422 |
|
|
#ifdef DEBUG_PTRACE |
423 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/sparc64/kernel/ptrace.c |
424 |
|
|
+++ linux-2.4.34.6/arch/sparc64/kernel/ptrace.c |
425 |
kumaneko |
2796 |
@@ -26,6 +26,7 @@ |
426 |
kumaneko |
863 |
#include <asm/psrcompat.h> |
427 |
|
|
#include <asm/visasm.h> |
428 |
|
|
#include <asm/spitfire.h> |
429 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
430 |
kumaneko |
863 |
|
431 |
|
|
#define MAGIC_CONSTANT 0x80000000 |
432 |
|
|
|
433 |
kumaneko |
2796 |
@@ -108,6 +109,10 @@ asmlinkage void do_ptrace(struct pt_regs |
434 |
kumaneko |
863 |
unsigned long data = regs->u_regs[UREG_I3]; |
435 |
|
|
unsigned long addr2 = regs->u_regs[UREG_I4]; |
436 |
|
|
struct task_struct *child; |
437 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) { |
438 |
kumaneko |
877 |
+ pt_error_return(regs, EPERM); |
439 |
|
|
+ return; |
440 |
|
|
+ } |
441 |
kumaneko |
863 |
|
442 |
|
|
if (current->thread.flags & SPARC_FLAG_32BIT) { |
443 |
|
|
addr &= 0xffffffffUL; |
444 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/x86_64/ia32/ptrace32.c |
445 |
|
|
+++ linux-2.4.34.6/arch/x86_64/ia32/ptrace32.c |
446 |
kumaneko |
2796 |
@@ -24,6 +24,7 @@ |
447 |
kumaneko |
1187 |
#include <asm/i387.h> |
448 |
|
|
#include <asm/fpu32.h> |
449 |
|
|
#include <linux/mm.h> |
450 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
451 |
kumaneko |
1187 |
|
452 |
|
|
/* determines which flags the user has access to. */ |
453 |
|
|
/* 1 = access 0 = no access */ |
454 |
kumaneko |
2796 |
@@ -203,6 +204,8 @@ asmlinkage long sys32_ptrace(long reques |
455 |
kumaneko |
1187 |
struct pt_regs *childregs; |
456 |
|
|
int ret; |
457 |
|
|
__u32 val; |
458 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
459 |
kumaneko |
1187 |
+ return -EPERM; |
460 |
|
|
|
461 |
|
|
switch (request) { |
462 |
|
|
case PTRACE_TRACEME: |
463 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/arch/x86_64/kernel/ptrace.c |
464 |
|
|
+++ linux-2.4.34.6/arch/x86_64/kernel/ptrace.c |
465 |
kumaneko |
2796 |
@@ -22,6 +22,7 @@ |
466 |
kumaneko |
863 |
#include <asm/processor.h> |
467 |
|
|
#include <asm/i387.h> |
468 |
|
|
#include <asm/debugreg.h> |
469 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
470 |
kumaneko |
863 |
|
471 |
|
|
/* |
472 |
|
|
* does not yet catch signals sent when the child dies. |
473 |
kumaneko |
2796 |
@@ -180,6 +181,8 @@ asmlinkage long sys_ptrace(long request, |
474 |
kumaneko |
863 |
struct task_struct *child; |
475 |
|
|
struct user * dummy = NULL; |
476 |
|
|
long i, ret; |
477 |
kumaneko |
3111 |
+ if (ccs_ptrace_permission(request, pid)) |
478 |
kumaneko |
1151 |
+ return -EPERM; |
479 |
kumaneko |
863 |
|
480 |
|
|
/* This lock_kernel fixes a subtle race with suid exec */ |
481 |
|
|
lock_kernel(); |
482 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/Config.in |
483 |
|
|
+++ linux-2.4.34.6/fs/Config.in |
484 |
kumaneko |
111 |
@@ -176,4 +176,7 @@ comment 'Partition Types' |
485 |
|
|
source fs/partitions/Config.in |
486 |
|
|
endmenu |
487 |
|
|
source fs/nls/Config.in |
488 |
|
|
+ |
489 |
kumaneko |
2886 |
endmenu |
490 |
|
|
+ |
491 |
kumaneko |
2858 |
+source security/ccsecurity/Config.in |
492 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/exec.c |
493 |
|
|
+++ linux-2.4.34.6/fs/exec.c |
494 |
kumaneko |
2796 |
@@ -48,6 +48,8 @@ |
495 |
kumaneko |
111 |
#include <linux/kmod.h> |
496 |
|
|
#endif |
497 |
|
|
|
498 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
499 |
kumaneko |
111 |
+ |
500 |
|
|
int core_uses_pid; |
501 |
|
|
char core_pattern[65] = "core"; |
502 |
|
|
int core_setuid_ok = 0; |
503 |
kumaneko |
2796 |
@@ -125,6 +127,10 @@ asmlinkage long sys_uselib(const char * |
504 |
kumaneko |
111 |
if (error) |
505 |
|
|
goto exit; |
506 |
|
|
|
507 |
kumaneko |
2922 |
+ error = ccs_uselib_permission(nd.dentry, nd.mnt); |
508 |
kumaneko |
1151 |
+ if (error) |
509 |
|
|
+ goto exit; |
510 |
kumaneko |
111 |
+ |
511 |
|
|
file = dentry_open(nd.dentry, nd.mnt, O_RDONLY); |
512 |
|
|
error = PTR_ERR(file); |
513 |
|
|
if (IS_ERR(file)) |
514 |
kumaneko |
2796 |
@@ -389,6 +395,9 @@ struct file *open_exec(const char *name) |
515 |
kumaneko |
115 |
int err = permission(inode, MAY_EXEC); |
516 |
|
|
if (!err && !(inode->i_mode & 0111)) |
517 |
|
|
err = -EACCES; |
518 |
kumaneko |
2306 |
+ if (!err) |
519 |
kumaneko |
2922 |
+ err = ccs_open_exec_permission(nd.dentry, |
520 |
kumaneko |
2306 |
+ nd.mnt); |
521 |
kumaneko |
115 |
file = ERR_PTR(err); |
522 |
|
|
if (!err) { |
523 |
|
|
file = dentry_open(nd.dentry, nd.mnt, O_RDONLY); |
524 |
kumaneko |
2796 |
@@ -978,7 +987,8 @@ int do_execve(char * filename, char ** a |
525 |
kumaneko |
115 |
if (retval < 0) |
526 |
kumaneko |
111 |
goto out; |
527 |
|
|
|
528 |
kumaneko |
115 |
- retval = search_binary_handler(&bprm,regs); |
529 |
kumaneko |
2300 |
+ retval = ccs_search_binary_handler(&bprm, regs); |
530 |
kumaneko |
111 |
+ |
531 |
|
|
if (retval >= 0) |
532 |
|
|
/* execve success */ |
533 |
|
|
return retval; |
534 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/fcntl.c |
535 |
|
|
+++ linux-2.4.34.6/fs/fcntl.c |
536 |
kumaneko |
2796 |
@@ -16,6 +16,7 @@ |
537 |
kumaneko |
111 |
#include <asm/poll.h> |
538 |
|
|
#include <asm/siginfo.h> |
539 |
|
|
#include <asm/uaccess.h> |
540 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
541 |
kumaneko |
111 |
|
542 |
|
|
extern int sock_fcntl (struct file *, unsigned int cmd, unsigned long arg); |
543 |
|
|
extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg); |
544 |
kumaneko |
4049 |
@@ -346,6 +347,8 @@ asmlinkage long sys_fcntl(unsigned int f |
545 |
|
|
if (!filp) |
546 |
|
|
goto out; |
547 |
kumaneko |
111 |
|
548 |
kumaneko |
4049 |
+ err = ccs_fcntl_permission(filp, cmd, arg); |
549 |
|
|
+ if (!err) |
550 |
|
|
err = do_fcntl(fd, cmd, arg, filp); |
551 |
|
|
|
552 |
|
|
fput(filp); |
553 |
|
|
@@ -364,6 +367,8 @@ asmlinkage long sys_fcntl64(unsigned int |
554 |
|
|
if (!filp) |
555 |
|
|
goto out; |
556 |
|
|
|
557 |
|
|
+ err = ccs_fcntl_permission(filp, cmd, arg); |
558 |
|
|
+ if (!err) |
559 |
|
|
switch (cmd) { |
560 |
|
|
case F_GETLK64: |
561 |
|
|
err = fcntl_getlk64(fd, (struct flock64 *) arg); |
562 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/ioctl.c |
563 |
|
|
+++ linux-2.4.34.6/fs/ioctl.c |
564 |
kumaneko |
2796 |
@@ -10,6 +10,7 @@ |
565 |
kumaneko |
111 |
|
566 |
|
|
#include <asm/uaccess.h> |
567 |
|
|
#include <asm/ioctls.h> |
568 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
569 |
kumaneko |
111 |
|
570 |
|
|
static int file_ioctl(struct file *filp,unsigned int cmd,unsigned long arg) |
571 |
|
|
{ |
572 |
kumaneko |
2796 |
@@ -55,6 +56,11 @@ asmlinkage long sys_ioctl(unsigned int f |
573 |
kumaneko |
2279 |
filp = fget(fd); |
574 |
|
|
if (!filp) |
575 |
|
|
goto out; |
576 |
kumaneko |
2922 |
+ error = ccs_ioctl_permission(filp, cmd, arg); |
577 |
kumaneko |
2283 |
+ if (error) { |
578 |
|
|
+ fput(filp); |
579 |
kumaneko |
2279 |
+ goto out; |
580 |
kumaneko |
2283 |
+ } |
581 |
kumaneko |
2279 |
error = 0; |
582 |
|
|
lock_kernel(); |
583 |
|
|
switch (cmd) { |
584 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/namei.c |
585 |
|
|
+++ linux-2.4.34.6/fs/namei.c |
586 |
kumaneko |
2796 |
@@ -28,6 +28,9 @@ |
587 |
kumaneko |
111 |
|
588 |
|
|
#define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE]) |
589 |
|
|
|
590 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
591 |
kumaneko |
111 |
+#include <linux/module.h> |
592 |
|
|
+ |
593 |
|
|
/* [Feb-1997 T. Schoebel-Theuer] |
594 |
|
|
* Fundamental changes in the pathname lookup mechanisms (namei) |
595 |
|
|
* were necessary because of omirr. The reason is that omirr needs |
596 |
kumaneko |
3854 |
@@ -1053,6 +1056,9 @@ do_last: |
597 |
kumaneko |
111 |
|
598 |
|
|
/* Negative dentry, just create the file */ |
599 |
|
|
if (!dentry->d_inode) { |
600 |
kumaneko |
2922 |
+ error = ccs_mknod_permission(dir->d_inode, dentry, nd->mnt, |
601 |
|
|
+ mode & ~current->fs->umask, 0); |
602 |
kumaneko |
1151 |
+ if (!error) |
603 |
kumaneko |
111 |
error = vfs_create(dir->d_inode, dentry, |
604 |
|
|
mode & ~current->fs->umask); |
605 |
|
|
up(&dir->d_inode->i_sem); |
606 |
kumaneko |
3854 |
@@ -1139,6 +1145,11 @@ ok: |
607 |
kumaneko |
111 |
goto exit; |
608 |
|
|
} |
609 |
|
|
|
610 |
kumaneko |
1151 |
+ /* includes O_APPEND and O_TRUNC checks */ |
611 |
kumaneko |
2922 |
+ error = ccs_open_permission(dentry, nd->mnt, flag); |
612 |
kumaneko |
1151 |
+ if (error) |
613 |
|
|
+ goto exit; |
614 |
kumaneko |
111 |
+ |
615 |
|
|
/* |
616 |
|
|
* Ensure there are no outstanding leases on the file. |
617 |
|
|
*/ |
618 |
kumaneko |
3854 |
@@ -1277,6 +1288,7 @@ asmlinkage long sys_mknod(const char * f |
619 |
kumaneko |
111 |
|
620 |
|
|
if (S_ISDIR(mode)) |
621 |
|
|
return -EPERM; |
622 |
|
|
+ |
623 |
|
|
tmp = getname(filename); |
624 |
|
|
if (IS_ERR(tmp)) |
625 |
|
|
return PTR_ERR(tmp); |
626 |
kumaneko |
3854 |
@@ -1289,6 +1301,9 @@ asmlinkage long sys_mknod(const char * f |
627 |
kumaneko |
2297 |
|
628 |
|
|
mode &= ~current->fs->umask; |
629 |
kumaneko |
111 |
if (!IS_ERR(dentry)) { |
630 |
kumaneko |
2922 |
+ error = ccs_mknod_permission(nd.dentry->d_inode, dentry, |
631 |
|
|
+ nd.mnt, mode, dev); |
632 |
kumaneko |
2297 |
+ if (!error) |
633 |
kumaneko |
111 |
switch (mode & S_IFMT) { |
634 |
|
|
case 0: case S_IFREG: |
635 |
|
|
error = vfs_create(nd.dentry->d_inode,dentry,mode); |
636 |
kumaneko |
3854 |
@@ -1355,6 +1370,9 @@ asmlinkage long sys_mkdir(const char * p |
637 |
kumaneko |
111 |
dentry = lookup_create(&nd, 1); |
638 |
|
|
error = PTR_ERR(dentry); |
639 |
|
|
if (!IS_ERR(dentry)) { |
640 |
kumaneko |
2922 |
+ error = ccs_mkdir_permission(nd.dentry->d_inode, |
641 |
|
|
+ dentry, nd.mnt, mode); |
642 |
kumaneko |
1151 |
+ if (!error) |
643 |
kumaneko |
111 |
error = vfs_mkdir(nd.dentry->d_inode, dentry, |
644 |
|
|
mode & ~current->fs->umask); |
645 |
|
|
dput(dentry); |
646 |
kumaneko |
3854 |
@@ -1464,6 +1482,9 @@ asmlinkage long sys_rmdir(const char * p |
647 |
kumaneko |
111 |
dentry = lookup_hash(&nd.last, nd.dentry); |
648 |
|
|
error = PTR_ERR(dentry); |
649 |
|
|
if (!IS_ERR(dentry)) { |
650 |
kumaneko |
2922 |
+ error = ccs_rmdir_permission(nd.dentry->d_inode, dentry, |
651 |
|
|
+ nd.mnt); |
652 |
kumaneko |
1151 |
+ if (!error) |
653 |
kumaneko |
111 |
error = vfs_rmdir(nd.dentry->d_inode, dentry); |
654 |
|
|
dput(dentry); |
655 |
|
|
} |
656 |
kumaneko |
3854 |
@@ -1533,6 +1554,9 @@ asmlinkage long sys_unlink(const char * |
657 |
kumaneko |
111 |
/* Why not before? Because we want correct error value */ |
658 |
|
|
if (nd.last.name[nd.last.len]) |
659 |
|
|
goto slashes; |
660 |
kumaneko |
2922 |
+ error = ccs_unlink_permission(nd.dentry->d_inode, dentry, |
661 |
|
|
+ nd.mnt); |
662 |
kumaneko |
2297 |
+ if (!error) |
663 |
kumaneko |
111 |
error = vfs_unlink(nd.dentry->d_inode, dentry); |
664 |
|
|
exit2: |
665 |
|
|
dput(dentry); |
666 |
kumaneko |
3854 |
@@ -1597,6 +1621,9 @@ asmlinkage long sys_symlink(const char * |
667 |
kumaneko |
111 |
dentry = lookup_create(&nd, 0); |
668 |
|
|
error = PTR_ERR(dentry); |
669 |
|
|
if (!IS_ERR(dentry)) { |
670 |
kumaneko |
2922 |
+ error = ccs_symlink_permission(nd.dentry->d_inode, |
671 |
|
|
+ dentry, nd.mnt, from); |
672 |
kumaneko |
1151 |
+ if (!error) |
673 |
kumaneko |
111 |
error = vfs_symlink(nd.dentry->d_inode, dentry, from); |
674 |
|
|
dput(dentry); |
675 |
|
|
} |
676 |
kumaneko |
3854 |
@@ -1683,6 +1710,10 @@ asmlinkage long sys_link(const char * ol |
677 |
kumaneko |
111 |
new_dentry = lookup_create(&nd, 0); |
678 |
|
|
error = PTR_ERR(new_dentry); |
679 |
|
|
if (!IS_ERR(new_dentry)) { |
680 |
kumaneko |
2922 |
+ error = ccs_link_permission(old_nd.dentry, |
681 |
|
|
+ nd.dentry->d_inode, |
682 |
|
|
+ new_dentry, nd.mnt); |
683 |
kumaneko |
1151 |
+ if (!error) |
684 |
kumaneko |
111 |
error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry); |
685 |
|
|
dput(new_dentry); |
686 |
|
|
} |
687 |
kumaneko |
3854 |
@@ -1913,12 +1944,17 @@ static inline int do_rename(const char * |
688 |
kumaneko |
111 |
error = PTR_ERR(new_dentry); |
689 |
|
|
if (IS_ERR(new_dentry)) |
690 |
|
|
goto exit4; |
691 |
kumaneko |
2922 |
+ error = ccs_rename_permission(old_dir->d_inode, old_dentry, |
692 |
|
|
+ new_dir->d_inode, new_dentry, newnd.mnt); |
693 |
kumaneko |
2297 |
+ if (error) |
694 |
|
|
+ goto exit5; |
695 |
kumaneko |
111 |
|
696 |
|
|
lock_kernel(); |
697 |
|
|
error = vfs_rename(old_dir->d_inode, old_dentry, |
698 |
kumaneko |
2297 |
new_dir->d_inode, new_dentry); |
699 |
|
|
unlock_kernel(); |
700 |
|
|
|
701 |
|
|
+exit5: |
702 |
|
|
dput(new_dentry); |
703 |
|
|
exit4: |
704 |
|
|
dput(old_dentry); |
705 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/namespace.c |
706 |
|
|
+++ linux-2.4.34.6/fs/namespace.c |
707 |
kumaneko |
2859 |
@@ -21,6 +21,8 @@ |
708 |
kumaneko |
111 |
#include <linux/seq_file.h> |
709 |
|
|
#include <linux/namespace.h> |
710 |
|
|
|
711 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
712 |
kumaneko |
111 |
+ |
713 |
|
|
struct vfsmount *do_kern_mount(const char *type, int flags, char *name, void *data); |
714 |
|
|
int do_remount_sb(struct super_block *sb, int flags, void * data); |
715 |
|
|
void kill_super(struct super_block *sb); |
716 |
kumaneko |
3052 |
@@ -290,6 +292,9 @@ static int do_umount(struct vfsmount *mn |
717 |
kumaneko |
111 |
{ |
718 |
|
|
struct super_block * sb = mnt->mnt_sb; |
719 |
|
|
int retval = 0; |
720 |
kumaneko |
3052 |
+ retval = ccs_umount_permission(mnt, flags); |
721 |
|
|
+ if (retval) |
722 |
|
|
+ return retval; |
723 |
kumaneko |
111 |
|
724 |
|
|
/* |
725 |
|
|
* If we may have to abort operations to get out of this |
726 |
kumaneko |
3854 |
@@ -700,6 +705,7 @@ static int copy_mount_options (const voi |
727 |
kumaneko |
3052 |
long do_mount(char * dev_name, char * dir_name, char *type_page, |
728 |
|
|
unsigned long flags, void *data_page) |
729 |
|
|
{ |
730 |
|
|
+ const unsigned long original_flags = flags; |
731 |
|
|
struct nameidata nd; |
732 |
|
|
int retval = 0; |
733 |
|
|
int mnt_flags = 0; |
734 |
kumaneko |
3854 |
@@ -732,6 +738,11 @@ long do_mount(char * dev_name, char * di |
735 |
kumaneko |
3052 |
if (retval) |
736 |
|
|
return retval; |
737 |
kumaneko |
115 |
|
738 |
kumaneko |
3584 |
+ retval = ccs_mount_permission(dev_name, &nd, type_page, original_flags, |
739 |
|
|
+ data_page); |
740 |
kumaneko |
1151 |
+ if (retval) |
741 |
kumaneko |
3052 |
+ goto out; |
742 |
kumaneko |
111 |
+ |
743 |
kumaneko |
3052 |
if (flags & MS_REMOUNT) |
744 |
|
|
retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags, |
745 |
|
|
data_page); |
746 |
kumaneko |
3854 |
@@ -742,6 +753,7 @@ long do_mount(char * dev_name, char * di |
747 |
kumaneko |
3052 |
else |
748 |
|
|
retval = do_add_mount(&nd, type_page, flags, mnt_flags, |
749 |
|
|
dev_name, data_page); |
750 |
|
|
+ out: |
751 |
|
|
path_release(&nd); |
752 |
|
|
return retval; |
753 |
|
|
} |
754 |
kumaneko |
3854 |
@@ -925,6 +937,11 @@ asmlinkage long sys_pivot_root(const cha |
755 |
kumaneko |
141 |
if (error) |
756 |
|
|
goto out1; |
757 |
|
|
|
758 |
kumaneko |
3584 |
+ error = ccs_pivot_root_permission(&old_nd, &new_nd); |
759 |
kumaneko |
141 |
+ if (error) { |
760 |
|
|
+ path_release(&old_nd); |
761 |
|
|
+ goto out1; |
762 |
|
|
+ } |
763 |
|
|
read_lock(¤t->fs->lock); |
764 |
|
|
user_nd.mnt = mntget(current->fs->rootmnt); |
765 |
|
|
user_nd.dentry = dget(current->fs->root); |
766 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/open.c |
767 |
|
|
+++ linux-2.4.34.6/fs/open.c |
768 |
kumaneko |
2859 |
@@ -20,6 +20,8 @@ |
769 |
kumaneko |
111 |
|
770 |
|
|
#define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m)) |
771 |
|
|
|
772 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
773 |
kumaneko |
111 |
+ |
774 |
|
|
int vfs_statfs(struct super_block *sb, struct statfs *buf) |
775 |
|
|
{ |
776 |
|
|
int retval = -ENODEV; |
777 |
kumaneko |
2859 |
@@ -162,6 +164,9 @@ static inline long do_sys_truncate(const |
778 |
kumaneko |
111 |
if (error) |
779 |
|
|
goto dput_and_out; |
780 |
|
|
|
781 |
kumaneko |
3854 |
+ error = ccs_truncate_permission(nd.dentry, nd.mnt); |
782 |
kumaneko |
1151 |
+ if (!error) |
783 |
kumaneko |
111 |
+ |
784 |
|
|
error = locks_verify_truncate(inode, NULL, length); |
785 |
|
|
if (!error) { |
786 |
|
|
DQUOT_INIT(inode); |
787 |
kumaneko |
2922 |
@@ -215,6 +220,9 @@ static inline long do_sys_ftruncate(unsi |
788 |
kumaneko |
111 |
if (IS_APPEND(inode)) |
789 |
|
|
goto out_putf; |
790 |
|
|
|
791 |
kumaneko |
3854 |
+ error = ccs_truncate_permission(dentry, file->f_vfsmnt); |
792 |
kumaneko |
1163 |
+ if (error) |
793 |
|
|
+ goto out_putf; |
794 |
kumaneko |
111 |
error = locks_verify_truncate(inode, file, length); |
795 |
|
|
if (!error) |
796 |
|
|
error = do_truncate(dentry, length); |
797 |
kumaneko |
3464 |
@@ -464,6 +472,8 @@ asmlinkage long sys_chroot(const char * |
798 |
kumaneko |
141 |
error = -EPERM; |
799 |
|
|
if (!capable(CAP_SYS_CHROOT)) |
800 |
|
|
goto dput_and_out; |
801 |
kumaneko |
3584 |
+ if (ccs_chroot_permission(&nd)) |
802 |
kumaneko |
1151 |
+ goto dput_and_out; |
803 |
kumaneko |
141 |
|
804 |
kumaneko |
111 |
set_fs_root(current->fs, nd.mnt, nd.dentry); |
805 |
|
|
set_fs_altroot(); |
806 |
kumaneko |
3464 |
@@ -495,6 +505,9 @@ asmlinkage long sys_fchmod(unsigned int |
807 |
kumaneko |
2869 |
err = -EPERM; |
808 |
|
|
if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
809 |
|
|
goto out_putf; |
810 |
|
|
+ err = ccs_chmod_permission(dentry, file->f_vfsmnt, mode); |
811 |
|
|
+ if (err) |
812 |
|
|
+ goto out_putf; |
813 |
|
|
if (mode == (mode_t) -1) |
814 |
|
|
mode = inode->i_mode; |
815 |
|
|
newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); |
816 |
kumaneko |
3464 |
@@ -526,6 +539,9 @@ asmlinkage long sys_chmod(const char * f |
817 |
kumaneko |
2869 |
error = -EPERM; |
818 |
|
|
if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
819 |
|
|
goto dput_and_out; |
820 |
|
|
+ error = ccs_chmod_permission(nd.dentry, nd.mnt, mode); |
821 |
|
|
+ if (error) |
822 |
|
|
+ goto dput_and_out; |
823 |
|
|
|
824 |
|
|
if (mode == (mode_t) -1) |
825 |
|
|
mode = inode->i_mode; |
826 |
kumaneko |
3464 |
@@ -606,6 +622,8 @@ asmlinkage long sys_chown(const char * f |
827 |
kumaneko |
2869 |
|
828 |
|
|
error = user_path_walk(filename, &nd); |
829 |
|
|
if (!error) { |
830 |
|
|
+ error = ccs_chown_permission(nd.dentry, nd.mnt, user, group); |
831 |
|
|
+ if (!error) |
832 |
|
|
error = chown_common(nd.dentry, user, group); |
833 |
|
|
path_release(&nd); |
834 |
|
|
} |
835 |
kumaneko |
3464 |
@@ -619,6 +637,8 @@ asmlinkage long sys_lchown(const char * |
836 |
kumaneko |
2869 |
|
837 |
|
|
error = user_path_walk_link(filename, &nd); |
838 |
|
|
if (!error) { |
839 |
|
|
+ error = ccs_chown_permission(nd.dentry, nd.mnt, user, group); |
840 |
|
|
+ if (!error) |
841 |
|
|
error = chown_common(nd.dentry, user, group); |
842 |
|
|
path_release(&nd); |
843 |
|
|
} |
844 |
kumaneko |
3464 |
@@ -633,6 +653,9 @@ asmlinkage long sys_fchown(unsigned int |
845 |
kumaneko |
2869 |
|
846 |
|
|
file = fget(fd); |
847 |
|
|
if (file) { |
848 |
|
|
+ error = ccs_chown_permission(file->f_dentry, file->f_vfsmnt, |
849 |
|
|
+ user, group); |
850 |
|
|
+ if (!error) |
851 |
|
|
error = chown_common(file->f_dentry, user, group); |
852 |
|
|
fput(file); |
853 |
|
|
} |
854 |
kumaneko |
3464 |
@@ -664,7 +687,9 @@ struct file *filp_open(const char * file |
855 |
kumaneko |
2950 |
if (namei_flags & O_TRUNC) |
856 |
|
|
namei_flags |= 2; |
857 |
|
|
|
858 |
|
|
+ ccs_save_open_mode(flags); |
859 |
|
|
error = open_namei(filename, namei_flags, mode, &nd); |
860 |
|
|
+ ccs_clear_open_mode(); |
861 |
|
|
if (!error) |
862 |
|
|
return dentry_open(nd.dentry, nd.mnt, flags); |
863 |
|
|
|
864 |
kumaneko |
3464 |
@@ -895,6 +920,8 @@ out_unlock: |
865 |
kumaneko |
111 |
*/ |
866 |
|
|
asmlinkage long sys_vhangup(void) |
867 |
|
|
{ |
868 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_VHANGUP)) |
869 |
kumaneko |
1151 |
+ return -EPERM; |
870 |
kumaneko |
111 |
if (capable(CAP_SYS_TTY_CONFIG)) { |
871 |
|
|
tty_vhangup(current->tty); |
872 |
|
|
return 0; |
873 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/fs/proc/proc_misc.c |
874 |
|
|
+++ linux-2.4.34.6/fs/proc/proc_misc.c |
875 |
kumaneko |
2796 |
@@ -670,4 +670,5 @@ void __init proc_misc_init(void) |
876 |
kumaneko |
111 |
entry->proc_fops = &ppc_htab_operations; |
877 |
|
|
} |
878 |
|
|
#endif |
879 |
kumaneko |
3914 |
+ printk(KERN_INFO "Hook version: 2.4.34.6 2010/08/23\n"); |
880 |
kumaneko |
111 |
} |
881 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/include/linux/sched.h |
882 |
|
|
+++ linux-2.4.34.6/include/linux/sched.h |
883 |
kumaneko |
3141 |
@@ -123,6 +123,15 @@ struct completion; |
884 |
kumaneko |
111 |
|
885 |
kumaneko |
3141 |
#ifdef __KERNEL__ |
886 |
kumaneko |
111 |
|
887 |
kumaneko |
2926 |
+#ifdef CONFIG_CCSECURITY |
888 |
kumaneko |
2282 |
+struct ccs_domain_info; |
889 |
kumaneko |
2926 |
+#define INIT_CCSECURITY \ |
890 |
|
|
+ .ccs_domain_info = NULL, \ |
891 |
|
|
+ .ccs_flags = 0, |
892 |
|
|
+#else |
893 |
|
|
+#define INIT_CCSECURITY |
894 |
|
|
+#endif |
895 |
kumaneko |
111 |
+ |
896 |
kumaneko |
3141 |
#include <linux/spinlock.h> |
897 |
|
|
|
898 |
kumaneko |
111 |
/* |
899 |
kumaneko |
2926 |
@@ -415,6 +424,10 @@ struct task_struct { |
900 |
kumaneko |
111 |
|
901 |
|
|
/* journalling filesystem info */ |
902 |
|
|
void *journal_info; |
903 |
kumaneko |
2926 |
+#ifdef CONFIG_CCSECURITY |
904 |
kumaneko |
2282 |
+ struct ccs_domain_info *ccs_domain_info; |
905 |
|
|
+ u32 ccs_flags; |
906 |
kumaneko |
2926 |
+#endif |
907 |
kumaneko |
111 |
}; |
908 |
|
|
|
909 |
|
|
/* |
910 |
kumaneko |
2926 |
@@ -510,6 +523,7 @@ extern struct exec_domain default_exec_d |
911 |
kumaneko |
111 |
blocked: {{0}}, \ |
912 |
|
|
alloc_lock: SPIN_LOCK_UNLOCKED, \ |
913 |
|
|
journal_info: NULL, \ |
914 |
kumaneko |
2926 |
+ INIT_CCSECURITY \ |
915 |
kumaneko |
111 |
} |
916 |
|
|
|
917 |
|
|
|
918 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/kmod.c |
919 |
|
|
+++ linux-2.4.34.6/kernel/kmod.c |
920 |
kumaneko |
2926 |
@@ -134,6 +134,11 @@ int exec_usermodehelper(char *program_pa |
921 |
kumaneko |
111 |
/* Allow execve args to be in kernel space. */ |
922 |
|
|
set_fs(KERNEL_DS); |
923 |
|
|
|
924 |
kumaneko |
2926 |
+#ifdef CONFIG_CCSECURITY |
925 |
kumaneko |
2282 |
+ current->ccs_domain_info = NULL; |
926 |
|
|
+ current->ccs_flags = 0; |
927 |
kumaneko |
2926 |
+#endif |
928 |
kumaneko |
111 |
+ |
929 |
|
|
/* Go, go, go... */ |
930 |
|
|
if (execve(program_path, argv, envp) < 0) |
931 |
|
|
return -errno; |
932 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/module.c |
933 |
|
|
+++ linux-2.4.34.6/kernel/module.c |
934 |
kumaneko |
2796 |
@@ -10,6 +10,7 @@ |
935 |
kumaneko |
111 |
#include <linux/slab.h> |
936 |
|
|
#include <linux/kmod.h> |
937 |
|
|
#include <linux/seq_file.h> |
938 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
939 |
kumaneko |
111 |
|
940 |
|
|
/* |
941 |
|
|
* Originally by Anonymous (as far as I know...) |
942 |
kumaneko |
2796 |
@@ -298,6 +299,8 @@ sys_create_module(const char *name_user, |
943 |
kumaneko |
111 |
|
944 |
|
|
if (!capable(CAP_SYS_MODULE)) |
945 |
|
|
return -EPERM; |
946 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_USE_KERNEL_MODULE)) |
947 |
kumaneko |
1151 |
+ return -EPERM; |
948 |
kumaneko |
111 |
lock_kernel(); |
949 |
|
|
if ((namelen = get_mod_name(name_user, &name)) < 0) { |
950 |
|
|
error = namelen; |
951 |
kumaneko |
2796 |
@@ -353,6 +356,8 @@ sys_init_module(const char *name_user, s |
952 |
kumaneko |
111 |
|
953 |
|
|
if (!capable(CAP_SYS_MODULE)) |
954 |
|
|
return -EPERM; |
955 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_USE_KERNEL_MODULE)) |
956 |
kumaneko |
1151 |
+ return -EPERM; |
957 |
kumaneko |
111 |
lock_kernel(); |
958 |
|
|
if ((namelen = get_mod_name(name_user, &name)) < 0) { |
959 |
|
|
error = namelen; |
960 |
kumaneko |
2796 |
@@ -614,6 +619,8 @@ sys_delete_module(const char *name_user) |
961 |
kumaneko |
111 |
|
962 |
|
|
if (!capable(CAP_SYS_MODULE)) |
963 |
|
|
return -EPERM; |
964 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_USE_KERNEL_MODULE)) |
965 |
kumaneko |
1151 |
+ return -EPERM; |
966 |
kumaneko |
111 |
|
967 |
|
|
lock_kernel(); |
968 |
|
|
if (name_user) { |
969 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/sched.c |
970 |
|
|
+++ linux-2.4.34.6/kernel/sched.c |
971 |
kumaneko |
2796 |
@@ -32,6 +32,7 @@ |
972 |
kumaneko |
111 |
|
973 |
|
|
#include <asm/uaccess.h> |
974 |
|
|
#include <asm/mmu_context.h> |
975 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
976 |
kumaneko |
111 |
|
977 |
|
|
extern void timer_bh(void); |
978 |
|
|
extern void tqueue_bh(void); |
979 |
kumaneko |
2796 |
@@ -899,6 +900,8 @@ void set_cpus_allowed(struct task_struct |
980 |
kumaneko |
111 |
asmlinkage long sys_nice(int increment) |
981 |
|
|
{ |
982 |
|
|
long newprio; |
983 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_NICE)) |
984 |
kumaneko |
1151 |
+ return -EPERM; |
985 |
kumaneko |
111 |
|
986 |
|
|
/* |
987 |
|
|
* Setpriority might change our priority at the same moment. |
988 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/signal.c |
989 |
|
|
+++ linux-2.4.34.6/kernel/signal.c |
990 |
kumaneko |
2796 |
@@ -15,6 +15,7 @@ |
991 |
kumaneko |
111 |
#include <linux/sched.h> |
992 |
|
|
|
993 |
|
|
#include <asm/uaccess.h> |
994 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
995 |
kumaneko |
111 |
|
996 |
|
|
/* |
997 |
|
|
* SLAB caches for signal bits. |
998 |
kumaneko |
2851 |
@@ -1014,6 +1015,8 @@ asmlinkage long |
999 |
kumaneko |
111 |
sys_kill(int pid, int sig) |
1000 |
|
|
{ |
1001 |
|
|
struct siginfo info; |
1002 |
kumaneko |
2851 |
+ if (ccs_kill_permission(pid, sig)) |
1003 |
kumaneko |
1151 |
+ return -EPERM; |
1004 |
kumaneko |
111 |
|
1005 |
|
|
info.si_signo = sig; |
1006 |
|
|
info.si_errno = 0; |
1007 |
kumaneko |
2851 |
@@ -1037,6 +1040,8 @@ sys_tkill(int pid, int sig) |
1008 |
|
|
/* This is only valid for single tasks */ |
1009 |
kumaneko |
111 |
if (pid <= 0) |
1010 |
|
|
return -EINVAL; |
1011 |
kumaneko |
2851 |
+ if (ccs_tkill_permission(pid, sig)) |
1012 |
|
|
+ return -EPERM; |
1013 |
kumaneko |
111 |
|
1014 |
|
|
info.si_signo = sig; |
1015 |
|
|
info.si_errno = 0; |
1016 |
kumaneko |
2869 |
@@ -1067,6 +1072,8 @@ sys_rt_sigqueueinfo(int pid, int sig, si |
1017 |
|
|
if (info.si_code >= 0) |
1018 |
|
|
return -EPERM; |
1019 |
|
|
info.si_signo = sig; |
1020 |
|
|
+ if (ccs_sigqueue_permission(pid, sig)) |
1021 |
|
|
+ return -EPERM; |
1022 |
|
|
|
1023 |
|
|
/* POSIX.1b doesn't mention process groups. */ |
1024 |
|
|
return kill_proc_info(sig, &info, pid); |
1025 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/sys.c |
1026 |
|
|
+++ linux-2.4.34.6/kernel/sys.c |
1027 |
kumaneko |
2796 |
@@ -17,6 +17,7 @@ |
1028 |
kumaneko |
111 |
|
1029 |
|
|
#include <asm/uaccess.h> |
1030 |
|
|
#include <asm/io.h> |
1031 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1032 |
kumaneko |
111 |
|
1033 |
|
|
#ifndef SET_UNALIGN_CTL |
1034 |
|
|
# define SET_UNALIGN_CTL(a,b) (-EINVAL) |
1035 |
kumaneko |
2796 |
@@ -220,6 +221,8 @@ asmlinkage long sys_setpriority(int whic |
1036 |
kumaneko |
111 |
|
1037 |
|
|
if (which > 2 || which < 0) |
1038 |
|
|
return -EINVAL; |
1039 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_NICE)) |
1040 |
kumaneko |
1151 |
+ return -EPERM; |
1041 |
kumaneko |
111 |
|
1042 |
|
|
/* normalize: avoid signed division (rounding problems) */ |
1043 |
|
|
error = -ESRCH; |
1044 |
kumaneko |
2796 |
@@ -299,6 +302,8 @@ asmlinkage long sys_reboot(int magic1, i |
1045 |
kumaneko |
111 |
(magic2 != LINUX_REBOOT_MAGIC2 && magic2 != LINUX_REBOOT_MAGIC2A && |
1046 |
|
|
magic2 != LINUX_REBOOT_MAGIC2B)) |
1047 |
|
|
return -EINVAL; |
1048 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_REBOOT)) |
1049 |
kumaneko |
1151 |
+ return -EPERM; |
1050 |
kumaneko |
111 |
|
1051 |
|
|
lock_kernel(); |
1052 |
|
|
switch (cmd) { |
1053 |
kumaneko |
2796 |
@@ -1042,6 +1047,8 @@ asmlinkage long sys_sethostname(char *na |
1054 |
kumaneko |
111 |
return -EPERM; |
1055 |
|
|
if (len < 0 || len > __NEW_UTS_LEN) |
1056 |
|
|
return -EINVAL; |
1057 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_SETHOSTNAME)) |
1058 |
kumaneko |
1151 |
+ return -EPERM; |
1059 |
kumaneko |
111 |
down_write(&uts_sem); |
1060 |
|
|
errno = -EFAULT; |
1061 |
|
|
if (!copy_from_user(tmp, name, len)) { |
1062 |
kumaneko |
2796 |
@@ -1083,6 +1090,8 @@ asmlinkage long sys_setdomainname(char * |
1063 |
kumaneko |
111 |
return -EPERM; |
1064 |
|
|
if (len < 0 || len > __NEW_UTS_LEN) |
1065 |
|
|
return -EINVAL; |
1066 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_SETHOSTNAME)) |
1067 |
kumaneko |
1151 |
+ return -EPERM; |
1068 |
kumaneko |
111 |
|
1069 |
|
|
down_write(&uts_sem); |
1070 |
|
|
errno = -EFAULT; |
1071 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/sysctl.c |
1072 |
|
|
+++ linux-2.4.34.6/kernel/sysctl.c |
1073 |
kumaneko |
2796 |
@@ -33,6 +33,7 @@ |
1074 |
kumaneko |
111 |
#include <linux/swap.h> |
1075 |
|
|
|
1076 |
|
|
#include <asm/uaccess.h> |
1077 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1078 |
kumaneko |
111 |
|
1079 |
|
|
#ifdef CONFIG_ROOT_NFS |
1080 |
|
|
#include <linux/nfs_fs.h> |
1081 |
kumaneko |
2796 |
@@ -437,6 +438,9 @@ int do_sysctl(int *name, int nlen, void |
1082 |
kumaneko |
111 |
|
1083 |
|
|
spin_unlock(&sysctl_lock); |
1084 |
|
|
|
1085 |
kumaneko |
2298 |
+ error = ccs_parse_table(name, nlen, oldval, newval, |
1086 |
kumaneko |
1151 |
+ head->ctl_table); |
1087 |
|
|
+ if (!error) |
1088 |
kumaneko |
111 |
error = parse_table(name, nlen, oldval, oldlenp, |
1089 |
|
|
newval, newlen, head->ctl_table, |
1090 |
|
|
&context); |
1091 |
kumaneko |
2796 |
@@ -506,6 +510,13 @@ repeat: |
1092 |
kumaneko |
111 |
if (ctl_perm(table, 001)) |
1093 |
|
|
return -EPERM; |
1094 |
|
|
if (table->strategy) { |
1095 |
|
|
+ int op = 0; |
1096 |
kumaneko |
1151 |
+ if (oldval) |
1097 |
|
|
+ op |= 004; |
1098 |
|
|
+ if (newval) |
1099 |
|
|
+ op |= 002; |
1100 |
|
|
+ if (ctl_perm(table, op)) |
1101 |
|
|
+ return -EPERM; |
1102 |
kumaneko |
111 |
error = table->strategy( |
1103 |
|
|
table, name, nlen, |
1104 |
|
|
oldval, oldlenp, |
1105 |
kumaneko |
2796 |
@@ -1454,7 +1465,7 @@ int sysctl_string(ctl_table *table, int |
1106 |
kumaneko |
111 |
len--; |
1107 |
|
|
((char *) table->data)[len] = 0; |
1108 |
|
|
} |
1109 |
|
|
- return 0; |
1110 |
|
|
+ return 1; |
1111 |
|
|
} |
1112 |
|
|
|
1113 |
|
|
/* |
1114 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/kernel/time.c |
1115 |
|
|
+++ linux-2.4.34.6/kernel/time.c |
1116 |
kumaneko |
2796 |
@@ -29,6 +29,7 @@ |
1117 |
kumaneko |
111 |
#include <linux/smp_lock.h> |
1118 |
|
|
|
1119 |
|
|
#include <asm/uaccess.h> |
1120 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1121 |
kumaneko |
111 |
|
1122 |
|
|
/* |
1123 |
|
|
* The timezone where the local system is located. Used as a default by some |
1124 |
kumaneko |
2796 |
@@ -77,6 +78,8 @@ asmlinkage long sys_stime(int * tptr) |
1125 |
kumaneko |
111 |
|
1126 |
|
|
if (!capable(CAP_SYS_TIME)) |
1127 |
|
|
return -EPERM; |
1128 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_SETTIME)) |
1129 |
kumaneko |
1151 |
+ return -EPERM; |
1130 |
kumaneko |
111 |
if (get_user(value, tptr)) |
1131 |
|
|
return -EFAULT; |
1132 |
|
|
write_lock_irq(&xtime_lock); |
1133 |
kumaneko |
2796 |
@@ -151,6 +154,8 @@ int do_sys_settimeofday(struct timeval * |
1134 |
kumaneko |
111 |
|
1135 |
|
|
if (!capable(CAP_SYS_TIME)) |
1136 |
|
|
return -EPERM; |
1137 |
kumaneko |
2282 |
+ if (!ccs_capable(CCS_SYS_SETTIME)) |
1138 |
kumaneko |
1151 |
+ return -EPERM; |
1139 |
kumaneko |
111 |
|
1140 |
|
|
if (tz) { |
1141 |
|
|
/* SMP safe, global irq locking makes it work. */ |
1142 |
kumaneko |
2796 |
@@ -217,6 +222,8 @@ int do_adjtimex(struct timex *txc) |
1143 |
kumaneko |
111 |
/* In order to modify anything, you gotta be super-user! */ |
1144 |
|
|
if (txc->modes && !capable(CAP_SYS_TIME)) |
1145 |
|
|
return -EPERM; |
1146 |
kumaneko |
2282 |
+ if (txc->modes && !ccs_capable(CCS_SYS_SETTIME)) |
1147 |
kumaneko |
1151 |
+ return -EPERM; |
1148 |
kumaneko |
111 |
|
1149 |
|
|
/* Now we validate the data before disabling interrupts */ |
1150 |
|
|
|
1151 |
kumaneko |
2459 |
--- linux-2.4.34.6.orig/net/ipv4/raw.c |
1152 |
|
|
+++ linux-2.4.34.6/net/ipv4/raw.c |
1153 |
kumaneko |
2796 |
@@ -64,6 +64,7 @@ |
1154 |
kumaneko |
2459 |
#include <net/raw.h> |
1155 |
|
|
#include <net/inet_common.h> |
1156 |
kumaneko |
352 |
#include <net/checksum.h> |
1157 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1158 |
kumaneko |
352 |
|
1159 |
kumaneko |
2459 |
struct sock *raw_v4_htable[RAWV4_HTABLE_SIZE]; |
1160 |
|
|
rwlock_t raw_v4_lock = RW_LOCK_UNLOCKED; |
1161 |
kumaneko |
3831 |
@@ -500,9 +501,14 @@ int raw_recvmsg(struct sock *sk, struct |
1162 |
kumaneko |
2459 |
goto out; |
1163 |
kumaneko |
3831 |
} |
1164 |
kumaneko |
352 |
|
1165 |
kumaneko |
3831 |
- skb = skb_recv_datagram(sk, flags, noblock, &err); |
1166 |
|
|
- if (!skb) |
1167 |
|
|
- goto out; |
1168 |
|
|
+ for (;;) { |
1169 |
|
|
+ skb = skb_recv_datagram(sk, flags, noblock, &err); |
1170 |
|
|
+ if (!skb) |
1171 |
|
|
+ goto out; |
1172 |
|
|
+ if (!ccs_socket_post_recvmsg_permission(sk, skb)) |
1173 |
|
|
+ break; |
1174 |
|
|
+ skb_kill_datagram(sk, skb, flags); |
1175 |
|
|
+ } |
1176 |
|
|
|
1177 |
kumaneko |
2459 |
copied = skb->len; |
1178 |
|
|
if (len < copied) { |
1179 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/net/ipv4/tcp_ipv4.c |
1180 |
|
|
+++ linux-2.4.34.6/net/ipv4/tcp_ipv4.c |
1181 |
kumaneko |
2796 |
@@ -67,6 +67,7 @@ |
1182 |
kumaneko |
111 |
#include <linux/inet.h> |
1183 |
|
|
#include <linux/stddef.h> |
1184 |
|
|
#include <linux/ipsec.h> |
1185 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1186 |
kumaneko |
111 |
|
1187 |
|
|
extern int sysctl_ip_dynaddr; |
1188 |
|
|
extern int sysctl_ip_default_ttl; |
1189 |
kumaneko |
2796 |
@@ -228,6 +229,8 @@ static int tcp_v4_get_port(struct sock * |
1190 |
kumaneko |
111 |
rover = low; |
1191 |
|
|
head = &tcp_bhash[tcp_bhashfn(rover)]; |
1192 |
|
|
spin_lock(&head->lock); |
1193 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(rover)) |
1194 |
kumaneko |
1151 |
+ goto next; |
1195 |
kumaneko |
111 |
for (tb = head->chain; tb; tb = tb->next) |
1196 |
|
|
if (tb->port == rover) |
1197 |
|
|
goto next; |
1198 |
kumaneko |
2796 |
@@ -688,6 +691,8 @@ static int tcp_v4_hash_connect(struct so |
1199 |
kumaneko |
111 |
rover = low; |
1200 |
|
|
head = &tcp_bhash[tcp_bhashfn(rover)]; |
1201 |
|
|
spin_lock(&head->lock); |
1202 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(rover)) |
1203 |
kumaneko |
1151 |
+ goto next_port; |
1204 |
kumaneko |
111 |
|
1205 |
|
|
/* Does not bother with rcv_saddr checks, |
1206 |
|
|
* because the established check is already |
1207 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/net/ipv4/udp.c |
1208 |
|
|
+++ linux-2.4.34.6/net/ipv4/udp.c |
1209 |
kumaneko |
2859 |
@@ -97,6 +97,7 @@ |
1210 |
kumaneko |
111 |
#include <net/route.h> |
1211 |
|
|
#include <net/inet_common.h> |
1212 |
|
|
#include <net/checksum.h> |
1213 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1214 |
kumaneko |
111 |
|
1215 |
|
|
/* |
1216 |
|
|
* Snmp MIB for the UDP layer |
1217 |
kumaneko |
2859 |
@@ -131,6 +132,8 @@ static int udp_v4_get_port(struct sock * |
1218 |
kumaneko |
237 |
result = sysctl_local_port_range[0] + |
1219 |
|
|
((result - sysctl_local_port_range[0]) & |
1220 |
|
|
(UDP_HTABLE_SIZE - 1)); |
1221 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(result)) |
1222 |
kumaneko |
1151 |
+ continue; |
1223 |
kumaneko |
237 |
goto gotit; |
1224 |
|
|
} |
1225 |
|
|
size = 0; |
1226 |
kumaneko |
2859 |
@@ -148,6 +151,8 @@ static int udp_v4_get_port(struct sock * |
1227 |
kumaneko |
111 |
result = sysctl_local_port_range[0] |
1228 |
|
|
+ ((result - sysctl_local_port_range[0]) & |
1229 |
|
|
(UDP_HTABLE_SIZE - 1)); |
1230 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(result)) |
1231 |
kumaneko |
1151 |
+ continue; |
1232 |
kumaneko |
111 |
if (!udp_lport_inuse(result)) |
1233 |
|
|
break; |
1234 |
|
|
} |
1235 |
kumaneko |
3831 |
@@ -697,6 +702,7 @@ int udp_recvmsg(struct sock *sk, struct |
1236 |
|
|
struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name; |
1237 |
|
|
struct sk_buff *skb; |
1238 |
|
|
int copied, err; |
1239 |
|
|
+ _Bool update_stat; |
1240 |
|
|
|
1241 |
|
|
/* |
1242 |
|
|
* Check any passed addresses |
1243 |
|
|
@@ -711,6 +717,11 @@ try_again: |
1244 |
kumaneko |
2459 |
skb = skb_recv_datagram(sk, flags, noblock, &err); |
1245 |
|
|
if (!skb) |
1246 |
|
|
goto out; |
1247 |
kumaneko |
3831 |
+ if (ccs_socket_post_recvmsg_permission(sk, skb)) { |
1248 |
|
|
+ update_stat = 0; |
1249 |
|
|
+ goto csum_copy_err; |
1250 |
|
|
+ } |
1251 |
|
|
+ update_stat = 1; |
1252 |
kumaneko |
2459 |
|
1253 |
|
|
copied = skb->len - sizeof(struct udphdr); |
1254 |
|
|
if (copied > len) { |
1255 |
kumaneko |
3831 |
@@ -759,7 +770,8 @@ out: |
1256 |
|
|
return err; |
1257 |
|
|
|
1258 |
|
|
csum_copy_err: |
1259 |
|
|
- UDP_INC_STATS_BH(UdpInErrors); |
1260 |
|
|
+ if (update_stat) |
1261 |
|
|
+ UDP_INC_STATS_BH(UdpInErrors); |
1262 |
|
|
|
1263 |
|
|
/* Clear queue. */ |
1264 |
|
|
if (flags&MSG_PEEK) { |
1265 |
kumaneko |
2459 |
--- linux-2.4.34.6.orig/net/ipv6/raw.c |
1266 |
|
|
+++ linux-2.4.34.6/net/ipv6/raw.c |
1267 |
kumaneko |
2796 |
@@ -45,6 +45,7 @@ |
1268 |
kumaneko |
2459 |
#include <net/inet_common.h> |
1269 |
|
|
|
1270 |
|
|
#include <net/rawv6.h> |
1271 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1272 |
kumaneko |
2459 |
|
1273 |
|
|
struct sock *raw_v6_htable[RAWV6_HTABLE_SIZE]; |
1274 |
|
|
rwlock_t raw_v6_lock = RW_LOCK_UNLOCKED; |
1275 |
kumaneko |
3831 |
@@ -366,9 +367,14 @@ int rawv6_recvmsg(struct sock *sk, struc |
1276 |
|
|
if (flags & MSG_ERRQUEUE) |
1277 |
|
|
return ipv6_recv_error(sk, msg, len); |
1278 |
kumaneko |
2459 |
|
1279 |
kumaneko |
3831 |
- skb = skb_recv_datagram(sk, flags, noblock, &err); |
1280 |
|
|
- if (!skb) |
1281 |
|
|
- goto out; |
1282 |
|
|
+ for (;;) { |
1283 |
|
|
+ skb = skb_recv_datagram(sk, flags, noblock, &err); |
1284 |
|
|
+ if (!skb) |
1285 |
|
|
+ goto out; |
1286 |
|
|
+ if (!ccs_socket_post_recvmsg_permission(sk, skb)) |
1287 |
|
|
+ break; |
1288 |
|
|
+ skb_kill_datagram(sk, skb, flags); |
1289 |
|
|
+ } |
1290 |
|
|
|
1291 |
kumaneko |
2459 |
copied = skb->len; |
1292 |
|
|
if (copied > len) { |
1293 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/net/ipv6/tcp_ipv6.c |
1294 |
|
|
+++ linux-2.4.34.6/net/ipv6/tcp_ipv6.c |
1295 |
kumaneko |
2796 |
@@ -52,6 +52,7 @@ |
1296 |
kumaneko |
111 |
#include <net/inet_ecn.h> |
1297 |
|
|
|
1298 |
|
|
#include <asm/uaccess.h> |
1299 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1300 |
kumaneko |
111 |
|
1301 |
|
|
static void tcp_v6_send_reset(struct sk_buff *skb); |
1302 |
|
|
static void tcp_v6_or_send_ack(struct sk_buff *skb, struct open_request *req); |
1303 |
kumaneko |
2796 |
@@ -110,6 +111,8 @@ static int tcp_v6_get_port(struct sock * |
1304 |
kumaneko |
111 |
rover = low; |
1305 |
|
|
head = &tcp_bhash[tcp_bhashfn(rover)]; |
1306 |
|
|
spin_lock(&head->lock); |
1307 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(rover)) |
1308 |
kumaneko |
1151 |
+ goto next; |
1309 |
kumaneko |
111 |
for (tb = head->chain; tb; tb = tb->next) |
1310 |
|
|
if (tb->port == rover) |
1311 |
|
|
goto next; |
1312 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/net/ipv6/udp.c |
1313 |
|
|
+++ linux-2.4.34.6/net/ipv6/udp.c |
1314 |
kumaneko |
2859 |
@@ -50,6 +50,7 @@ |
1315 |
kumaneko |
111 |
#include <net/inet_common.h> |
1316 |
|
|
|
1317 |
|
|
#include <net/checksum.h> |
1318 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1319 |
kumaneko |
111 |
|
1320 |
|
|
struct udp_mib udp_stats_in6[NR_CPUS*2]; |
1321 |
|
|
|
1322 |
kumaneko |
2859 |
@@ -77,6 +78,8 @@ static int udp_v6_get_port(struct sock * |
1323 |
kumaneko |
238 |
result = sysctl_local_port_range[0] + |
1324 |
|
|
((result - sysctl_local_port_range[0]) & |
1325 |
|
|
(UDP_HTABLE_SIZE - 1)); |
1326 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(result)) |
1327 |
kumaneko |
1151 |
+ continue; |
1328 |
kumaneko |
238 |
goto gotit; |
1329 |
|
|
} |
1330 |
|
|
size = 0; |
1331 |
kumaneko |
2859 |
@@ -94,6 +97,8 @@ static int udp_v6_get_port(struct sock * |
1332 |
kumaneko |
111 |
result = sysctl_local_port_range[0] |
1333 |
|
|
+ ((result - sysctl_local_port_range[0]) & |
1334 |
|
|
(UDP_HTABLE_SIZE - 1)); |
1335 |
kumaneko |
2299 |
+ if (ccs_lport_reserved(result)) |
1336 |
kumaneko |
1151 |
+ continue; |
1337 |
kumaneko |
111 |
if (!udp_lport_inuse(result)) |
1338 |
|
|
break; |
1339 |
|
|
} |
1340 |
kumaneko |
3831 |
@@ -395,6 +400,7 @@ int udpv6_recvmsg(struct sock *sk, struc |
1341 |
|
|
{ |
1342 |
|
|
struct sk_buff *skb; |
1343 |
|
|
int copied, err; |
1344 |
|
|
+ _Bool update_stat; |
1345 |
|
|
|
1346 |
|
|
if (addr_len) |
1347 |
|
|
*addr_len=sizeof(struct sockaddr_in6); |
1348 |
|
|
@@ -406,6 +412,11 @@ try_again: |
1349 |
kumaneko |
2459 |
skb = skb_recv_datagram(sk, flags, noblock, &err); |
1350 |
|
|
if (!skb) |
1351 |
|
|
goto out; |
1352 |
kumaneko |
3831 |
+ if (ccs_socket_post_recvmsg_permission(sk, skb)) { |
1353 |
|
|
+ update_stat = 0; |
1354 |
|
|
+ goto csum_copy_err; |
1355 |
|
|
+ } |
1356 |
|
|
+ update_stat = 1; |
1357 |
kumaneko |
2459 |
|
1358 |
|
|
copied = skb->len - sizeof(struct udphdr); |
1359 |
|
|
if (copied > len) { |
1360 |
kumaneko |
3831 |
@@ -485,7 +496,8 @@ csum_copy_err: |
1361 |
|
|
skb_free_datagram(sk, skb); |
1362 |
|
|
|
1363 |
|
|
if (flags & MSG_DONTWAIT) { |
1364 |
|
|
- UDP6_INC_STATS_USER(UdpInErrors); |
1365 |
|
|
+ if (update_stat) |
1366 |
|
|
+ UDP6_INC_STATS_USER(UdpInErrors); |
1367 |
|
|
return -EAGAIN; |
1368 |
|
|
} |
1369 |
|
|
goto try_again; |
1370 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/net/socket.c |
1371 |
|
|
+++ linux-2.4.34.6/net/socket.c |
1372 |
kumaneko |
2859 |
@@ -84,6 +84,7 @@ |
1373 |
kumaneko |
111 |
#include <net/sock.h> |
1374 |
|
|
#include <net/scm.h> |
1375 |
|
|
#include <linux/netfilter.h> |
1376 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1377 |
kumaneko |
111 |
|
1378 |
|
|
static int sock_no_open(struct inode *irrelevant, struct file *dontcare); |
1379 |
|
|
static ssize_t sock_read(struct file *file, char *buf, |
1380 |
kumaneko |
3075 |
@@ -501,7 +502,8 @@ int sock_sendmsg(struct socket *sock, st |
1381 |
kumaneko |
111 |
{ |
1382 |
|
|
int err; |
1383 |
|
|
struct scm_cookie scm; |
1384 |
|
|
- |
1385 |
kumaneko |
3075 |
+ err = ccs_socket_sendmsg_permission(sock, msg, size); |
1386 |
kumaneko |
1151 |
+ if (!err) |
1387 |
kumaneko |
111 |
err = scm_send(sock, msg, &scm); |
1388 |
|
|
if (err >= 0) { |
1389 |
|
|
err = sock->ops->sendmsg(sock, msg, size, &scm); |
1390 |
kumaneko |
3075 |
@@ -847,7 +849,9 @@ int sock_create(int family, int type, in |
1391 |
kumaneko |
111 |
} |
1392 |
|
|
family = PF_PACKET; |
1393 |
|
|
} |
1394 |
|
|
- |
1395 |
kumaneko |
1151 |
+ i = ccs_socket_create_permission(family, type, protocol); |
1396 |
|
|
+ if (i) |
1397 |
|
|
+ return i; |
1398 |
kumaneko |
111 |
#if defined(CONFIG_KMOD) && defined(CONFIG_NET) |
1399 |
|
|
/* Attempt to load a protocol module if the find failed. |
1400 |
|
|
* |
1401 |
kumaneko |
3075 |
@@ -1003,6 +1007,10 @@ asmlinkage long sys_bind(int fd, struct |
1402 |
kumaneko |
111 |
if((sock = sockfd_lookup(fd,&err))!=NULL) |
1403 |
|
|
{ |
1404 |
|
|
if((err=move_addr_to_kernel(umyaddr,addrlen,address))>=0) |
1405 |
kumaneko |
1151 |
+ err = ccs_socket_bind_permission(sock, |
1406 |
|
|
+ (struct sockaddr *) |
1407 |
|
|
+ address, addrlen); |
1408 |
|
|
+ if (!err) |
1409 |
kumaneko |
111 |
err = sock->ops->bind(sock, (struct sockaddr *)address, addrlen); |
1410 |
|
|
sockfd_put(sock); |
1411 |
|
|
} |
1412 |
kumaneko |
3075 |
@@ -1026,6 +1034,8 @@ asmlinkage long sys_listen(int fd, int b |
1413 |
kumaneko |
111 |
if ((sock = sockfd_lookup(fd, &err)) != NULL) { |
1414 |
|
|
if ((unsigned) backlog > sysctl_somaxconn) |
1415 |
|
|
backlog = sysctl_somaxconn; |
1416 |
kumaneko |
1151 |
+ err = ccs_socket_listen_permission(sock); |
1417 |
|
|
+ if (!err) |
1418 |
kumaneko |
111 |
err=sock->ops->listen(sock, backlog); |
1419 |
|
|
sockfd_put(sock); |
1420 |
|
|
} |
1421 |
kumaneko |
3831 |
@@ -1055,6 +1065,7 @@ asmlinkage long sys_accept(int fd, struc |
1422 |
|
|
if (!sock) |
1423 |
|
|
goto out; |
1424 |
|
|
|
1425 |
|
|
+retry: |
1426 |
|
|
err = -ENFILE; |
1427 |
|
|
if (!(newsock = sock_alloc())) |
1428 |
|
|
goto out_put; |
1429 |
|
|
@@ -1066,6 +1077,10 @@ asmlinkage long sys_accept(int fd, struc |
1430 |
kumaneko |
111 |
if (err < 0) |
1431 |
|
|
goto out_release; |
1432 |
|
|
|
1433 |
kumaneko |
3831 |
+ if (ccs_socket_post_accept_permission(sock, newsock)) { |
1434 |
|
|
+ sock_release(newsock); |
1435 |
|
|
+ goto retry; |
1436 |
kumaneko |
111 |
+ } |
1437 |
|
|
if (upeer_sockaddr) { |
1438 |
|
|
if(newsock->ops->getname(newsock, (struct sockaddr *)address, &len, 2)<0) { |
1439 |
|
|
err = -ECONNABORTED; |
1440 |
kumaneko |
3075 |
@@ -1116,6 +1131,10 @@ asmlinkage long sys_connect(int fd, stru |
1441 |
kumaneko |
111 |
err = move_addr_to_kernel(uservaddr, addrlen, address); |
1442 |
|
|
if (err < 0) |
1443 |
|
|
goto out_put; |
1444 |
kumaneko |
1151 |
+ err = ccs_socket_connect_permission(sock, (struct sockaddr *) address, |
1445 |
|
|
+ addrlen); |
1446 |
|
|
+ if (err) |
1447 |
|
|
+ goto out_put; |
1448 |
kumaneko |
111 |
err = sock->ops->connect(sock, (struct sockaddr *) address, addrlen, |
1449 |
|
|
sock->file->f_flags); |
1450 |
|
|
out_put: |
1451 |
kumaneko |
1498 |
--- linux-2.4.34.6.orig/net/unix/af_unix.c |
1452 |
|
|
+++ linux-2.4.34.6/net/unix/af_unix.c |
1453 |
kumaneko |
2796 |
@@ -111,6 +111,7 @@ |
1454 |
kumaneko |
111 |
#include <linux/rtnetlink.h> |
1455 |
|
|
|
1456 |
|
|
#include <asm/checksum.h> |
1457 |
kumaneko |
2859 |
+#include <linux/ccsecurity.h> |
1458 |
kumaneko |
111 |
|
1459 |
|
|
int sysctl_unix_max_dgram_qlen = 10; |
1460 |
|
|
|
1461 |
kumaneko |
2796 |
@@ -709,6 +710,9 @@ static int unix_bind(struct socket *sock |
1462 |
kumaneko |
111 |
* All right, let's create it. |
1463 |
|
|
*/ |
1464 |
|
|
mode = S_IFSOCK | (sock->inode->i_mode & ~current->fs->umask); |
1465 |
kumaneko |
2922 |
+ err = ccs_mknod_permission(nd.dentry->d_inode, dentry, nd.mnt, |
1466 |
|
|
+ mode, 0); |
1467 |
kumaneko |
1151 |
+ if (!err) |
1468 |
kumaneko |
111 |
err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0); |
1469 |
|
|
if (err) |
1470 |
|
|
goto out_mknod_dput; |
1471 |
kumaneko |
3916 |
@@ -1405,12 +1409,17 @@ static int unix_dgram_recvmsg(struct soc |
1472 |
kumaneko |
3914 |
|
1473 |
kumaneko |
3916 |
down(&sk->protinfo.af_unix.readsem); |
1474 |
|
|
|
1475 |
|
|
+retry: |
1476 |
|
|
skb = skb_recv_datagram(sk, flags, noblock, &err); |
1477 |
|
|
if (!skb) |
1478 |
|
|
goto out_unlock; |
1479 |
|
|
|
1480 |
kumaneko |
3914 |
wake_up_interruptible(&sk->protinfo.af_unix.peer_wait); |
1481 |
|
|
|
1482 |
kumaneko |
3916 |
+ if (ccs_socket_post_recvmsg_permission(sk, skb)) { |
1483 |
|
|
+ skb_kill_datagram(sk, skb, flags); |
1484 |
|
|
+ goto retry; |
1485 |
|
|
+ } |
1486 |
kumaneko |
3914 |
if (msg->msg_name) |
1487 |
|
|
unix_copy_addr(msg, skb->sk); |
1488 |
|
|
|