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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-12-09 09:14:38 +0300
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-12-09 09:14:38 +0300
commitbcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71 (patch)
tree2f6dffd2d3e4dd67355a224de7e7a960335a92fd /scripts
parent11c34c7deaeeebcee342cbc35e1bb2a6711b2431 (diff)
parent3ff6a468b45b5dfeb0e903e56f4eb27d34b2437c (diff)
downloadlinux-bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71.tar.xz
Merge commit 'origin/master' into next
Conflicts: include/linux/kvm.h
Diffstat (limited to 'scripts')
-rw-r--r--scripts/kconfig/Makefile4
-rw-r--r--scripts/kconfig/streamline_config.pl12
-rwxr-xr-xscripts/kernel-doc15
-rwxr-xr-xscripts/recordmcount.pl219
-rw-r--r--scripts/selinux/Makefile4
-rw-r--r--scripts/selinux/genheaders/.gitignore1
-rw-r--r--scripts/selinux/genheaders/Makefile5
-rw-r--r--scripts/selinux/genheaders/genheaders.c118
-rw-r--r--scripts/selinux/mdp/mdp.c151
9 files changed, 294 insertions, 235 deletions
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 6d69c7ccdcc7..80599e3a7994 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -30,7 +30,7 @@ silentoldconfig: $(obj)/conf
$< -s $(Kconfig)
localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
- $(Q)perl $< $(Kconfig) > .tmp.config
+ $(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
$(Q)if [ -f .config ]; then \
cmp -s .tmp.config .config || \
(mv -f .config .config.old.1; \
@@ -44,7 +44,7 @@ localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
$(Q)rm -f .tmp.config
localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
- $(Q)perl $< $(Kconfig) > .tmp.config
+ $(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
$(Q)sed -i s/=m/=y/ .tmp.config
$(Q)if [ -f .config ]; then \
cmp -s .tmp.config .config || \
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 95984db8e1e0..0d800820c3cd 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -43,7 +43,6 @@
# make oldconfig
#
my $config = ".config";
-my $linuxpath = ".";
my $uname = `uname -r`;
chomp $uname;
@@ -111,7 +110,11 @@ sub find_config {
find_config;
-my @makefiles = `find $linuxpath -name Makefile`;
+# Get the build source and top level Kconfig file (passed in)
+my $ksource = $ARGV[0];
+my $kconfig = $ARGV[1];
+
+my @makefiles = `find $ksource -name Makefile`;
my %depends;
my %selects;
my %prompts;
@@ -119,9 +122,6 @@ my %objects;
my $var;
my $cont = 0;
-# Get the top level Kconfig file (passed in)
-my $kconfig = $ARGV[0];
-
# prevent recursion
my %read_kconfigs;
@@ -132,7 +132,7 @@ sub read_kconfig {
my $config;
my @kconfigs;
- open(KIN, $kconfig) || die "Can't open $kconfig";
+ open(KIN, "$ksource/$kconfig") || die "Can't open $kconfig";
while (<KIN>) {
chomp;
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index ea9f8a58678f..241310e59cd6 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1852,10 +1852,17 @@ sub tracepoint_munge($) {
my $tracepointname = 0;
my $tracepointargs = 0;
- if($prototype =~ m/TRACE_EVENT\((.*?),/) {
+ if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
$tracepointname = $1;
}
- if($prototype =~ m/TP_PROTO\((.*?)\)/) {
+ if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
+ $tracepointname = $1;
+ }
+ if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
+ $tracepointname = $2;
+ }
+ $tracepointname =~ s/^\s+//; #strip leading whitespace
+ if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
$tracepointargs = $1;
}
if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
@@ -1920,7 +1927,9 @@ sub process_state3_function($$) {
if ($prototype =~ /SYSCALL_DEFINE/) {
syscall_munge();
}
- if ($prototype =~ /TRACE_EVENT/) {
+ if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
+ $prototype =~ /DEFINE_SINGLE_EVENT/)
+ {
tracepoint_munge($file);
}
dump_function($prototype, $file);
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 090d300d7394..f0d14452632b 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -6,77 +6,93 @@
# all the offsets to the calls to mcount.
#
#
-# What we want to end up with is a section in vmlinux called
-# __mcount_loc that contains a list of pointers to all the
-# call sites in the kernel that call mcount. Later on boot up, the kernel
-# will read this list, save the locations and turn them into nops.
-# When tracing or profiling is later enabled, these locations will then
-# be converted back to pointers to some function.
+# What we want to end up with this is that each object file will have a
+# section called __mcount_loc that will hold the list of pointers to mcount
+# callers. After final linking, the vmlinux will have within .init.data the
+# list of all callers to mcount between __start_mcount_loc and __stop_mcount_loc.
+# Later on boot up, the kernel will read this list, save the locations and turn
+# them into nops. When tracing or profiling is later enabled, these locations
+# will then be converted back to pointers to some function.
#
# This is no easy feat. This script is called just after the original
# object is compiled and before it is linked.
#
-# The references to the call sites are offsets from the section of text
-# that the call site is in. Hence, all functions in a section that
-# has a call site to mcount, will have the offset from the beginning of
-# the section and not the beginning of the function.
+# When parse this object file using 'objdump', the references to the call
+# sites are offsets from the section that the call site is in. Hence, all
+# functions in a section that has a call site to mcount, will have the
+# offset from the beginning of the section and not the beginning of the
+# function.
+#
+# But where this section will reside finally in vmlinx is undetermined at
+# this point. So we can't use this kind of offsets to record the final
+# address of this call site.
+#
+# The trick is to change the call offset referring the start of a section to
+# referring a function symbol in this section. During the link step, 'ld' will
+# compute the final address according to the information we record.
#
-# The trick is to find a way to record the beginning of the section.
-# The way we do this is to look at the first function in the section
-# which will also be the location of that section after final link.
# e.g.
#
# .section ".sched.text", "ax"
-# .globl my_func
-# my_func:
# [...]
-# call mcount (offset: 0x5)
+# func1:
+# [...]
+# call mcount (offset: 0x10)
# [...]
# ret
-# other_func:
+# .globl fun2
+# func2: (offset: 0x20)
# [...]
-# call mcount (offset: 0x1b)
+# [...]
+# ret
+# func3:
+# [...]
+# call mcount (offset: 0x30)
# [...]
#
# Both relocation offsets for the mcounts in the above example will be
-# offset from .sched.text. If we make another file called tmp.s with:
+# offset from .sched.text. If we choose global symbol func2 as a reference and
+# make another file called tmp.s with the new offsets:
#
# .section __mcount_loc
-# .quad my_func + 0x5
-# .quad my_func + 0x1b
+# .quad func2 - 0x10
+# .quad func2 + 0x10
#
-# We can then compile this tmp.s into tmp.o, and link it to the original
+# We can then compile this tmp.s into tmp.o, and link it back to the original
# object.
#
-# But this gets hard if my_func is not globl (a static function).
-# In such a case we have:
+# In our algorithm, we will choose the first global function we meet in this
+# section as the reference. But this gets hard if there is no global functions
+# in this section. In such a case we have to select a local one. E.g. func1:
#
# .section ".sched.text", "ax"
-# my_func:
+# func1:
# [...]
-# call mcount (offset: 0x5)
+# call mcount (offset: 0x10)
# [...]
# ret
-# other_func:
+# func2:
# [...]
-# call mcount (offset: 0x1b)
+# call mcount (offset: 0x20)
# [...]
+# .section "other.section"
#
# If we make the tmp.s the same as above, when we link together with
-# the original object, we will end up with two symbols for my_func:
+# the original object, we will end up with two symbols for func1:
# one local, one global. After final compile, we will end up with
-# an undefined reference to my_func.
+# an undefined reference to func1 or a wrong reference to another global
+# func1 in other files.
#
# Since local objects can reference local variables, we need to find
# a way to make tmp.o reference the local objects of the original object
-# file after it is linked together. To do this, we convert the my_func
+# file after it is linked together. To do this, we convert func1
# into a global symbol before linking tmp.o. Then after we link tmp.o
-# we will only have a single symbol for my_func that is global.
-# We can convert my_func back into a local symbol and we are done.
+# we will only have a single symbol for func1 that is global.
+# We can convert func1 back into a local symbol and we are done.
#
# Here are the steps we take:
#
-# 1) Record all the local symbols by using 'nm'
+# 1) Record all the local and weak symbols by using 'nm'
# 2) Use objdump to find all the call site offsets and sections for
# mcount.
# 3) Compile the list into its own object.
@@ -86,10 +102,8 @@
# 6) Link together this new object with the list object.
# 7) Convert the local functions back to local symbols and rename
# the result as the original object.
-# End.
# 8) Link the object with the list object.
# 9) Move the result back to the original object.
-# End.
#
use strict;
@@ -99,7 +113,7 @@ $P =~ s@.*/@@g;
my $V = '0.1';
-if ($#ARGV < 7) {
+if ($#ARGV != 10) {
print "usage: $P arch bits objdump objcopy cc ld nm rm mv is_module inputfile\n";
print "version: $V\n";
exit(1);
@@ -109,7 +123,7 @@ my ($arch, $bits, $objdump, $objcopy, $cc,
$ld, $nm, $rm, $mv, $is_module, $inputfile) = @ARGV;
# This file refers to mcount and shouldn't be ftraced, so lets' ignore it
-if ($inputfile eq "kernel/trace/ftrace.o") {
+if ($inputfile =~ m,kernel/trace/ftrace\.o$,) {
exit(0);
}
@@ -119,6 +133,7 @@ my %text_sections = (
".sched.text" => 1,
".spinlock.text" => 1,
".irqentry.text" => 1,
+ ".text.unlikely" => 1,
);
$objdump = "objdump" if ((length $objdump) == 0);
@@ -137,13 +152,47 @@ my %weak; # List of weak functions
my %convert; # List of local functions used that needs conversion
my $type;
-my $nm_regex; # Find the local functions (return function)
+my $local_regex; # Match a local function (return function)
+my $weak_regex; # Match a weak function (return function)
my $section_regex; # Find the start of a section
my $function_regex; # Find the name of a function
# (return offset and func name)
my $mcount_regex; # Find the call site to mcount (return offset)
my $alignment; # The .align value to use for $mcount_section
my $section_type; # Section header plus possible alignment command
+my $can_use_local = 0; # If we can use local function references
+
+# Shut up recordmcount if user has older objcopy
+my $quiet_recordmcount = ".tmp_quiet_recordmcount";
+my $print_warning = 1;
+$print_warning = 0 if ( -f $quiet_recordmcount);
+
+##
+# check_objcopy - whether objcopy supports --globalize-symbols
+#
+# --globalize-symbols came out in 2.17, we must test the version
+# of objcopy, and if it is less than 2.17, then we can not
+# record local functions.
+sub check_objcopy
+{
+ open (IN, "$objcopy --version |") or die "error running $objcopy";
+ while (<IN>) {
+ if (/objcopy.*\s(\d+)\.(\d+)/) {
+ $can_use_local = 1 if ($1 > 2 || ($1 == 2 && $2 >= 17));
+ last;
+ }
+ }
+ close (IN);
+
+ if (!$can_use_local && $print_warning) {
+ print STDERR "WARNING: could not find objcopy version or version " .
+ "is less than 2.17.\n" .
+ "\tLocal function references are disabled.\n";
+ open (QUIET, ">$quiet_recordmcount");
+ printf QUIET "Disables the warning from recordmcount.pl\n";
+ close QUIET;
+ }
+}
if ($arch eq "x86") {
if ($bits == 64) {
@@ -157,7 +206,8 @@ if ($arch eq "x86") {
# We base the defaults off of i386, the other archs may
# feel free to change them in the below if statements.
#
-$nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
+$local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
+$weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
$section_regex = "Disassembly of section\\s+(\\S+):";
$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
@@ -206,7 +256,7 @@ if ($arch eq "x86_64") {
$cc .= " -m32";
} elsif ($arch eq "powerpc") {
- $nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";
+ $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";
$function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$";
@@ -278,44 +328,17 @@ if ($filename =~ m,^(.*)(\.\S),) {
my $mcount_s = $dirname . "/.tmp_mc_" . $prefix . ".s";
my $mcount_o = $dirname . "/.tmp_mc_" . $prefix . ".o";
-#
-# --globalize-symbols came out in 2.17, we must test the version
-# of objcopy, and if it is less than 2.17, then we can not
-# record local functions.
-my $use_locals = 01;
-my $local_warn_once = 0;
-my $found_version = 0;
-
-open (IN, "$objcopy --version |") || die "error running $objcopy";
-while (<IN>) {
- if (/objcopy.*\s(\d+)\.(\d+)/) {
- my $major = $1;
- my $minor = $2;
-
- $found_version = 1;
- if ($major < 2 ||
- ($major == 2 && $minor < 17)) {
- $use_locals = 0;
- }
- last;
- }
-}
-close (IN);
-
-if (!$found_version) {
- print STDERR "WARNING: could not find objcopy version.\n" .
- "\tDisabling local function references.\n";
-}
+check_objcopy();
#
# Step 1: find all the local (static functions) and weak symbols.
-# 't' is local, 'w/W' is weak (we never use a weak function)
+# 't' is local, 'w/W' is weak
#
open (IN, "$nm $inputfile|") || die "error running $nm";
while (<IN>) {
- if (/$nm_regex/) {
+ if (/$local_regex/) {
$locals{$1} = 1;
- } elsif (/^[0-9a-fA-F]+\s+([wW])\s+(\S+)/) {
+ } elsif (/$weak_regex/) {
$weak{$2} = $1;
}
}
@@ -333,26 +356,20 @@ my $offset = 0; # offset of ref_func to section beginning
#
sub update_funcs
{
- return if ($#offsets < 0);
-
- defined($ref_func) || die "No function to reference";
+ return unless ($ref_func and @offsets);
- # A section only had a weak function, to represent it.
- # Unfortunately, a weak function may be overwritten by another
- # function of the same name, making all these offsets incorrect.
- # To be safe, we simply print a warning and bail.
+ # Sanity check on weak function. A weak function may be overwritten by
+ # another function of the same name, making all these offsets incorrect.
if (defined $weak{$ref_func}) {
- print STDERR
- "$inputfile: WARNING: referencing weak function" .
+ die "$inputfile: ERROR: referencing weak function" .
" $ref_func for mcount\n";
- return;
}
# is this function static? If so, note this fact.
if (defined $locals{$ref_func}) {
# only use locals if objcopy supports globalize-symbols
- if (!$use_locals) {
+ if (!$can_use_local) {
return;
}
$convert{$ref_func} = 1;
@@ -378,9 +395,27 @@ open(IN, "$objdump -hdr $inputfile|") || die "error running $objdump";
my $text;
+
+# read headers first
my $read_headers = 1;
while (<IN>) {
+
+ if ($read_headers && /$mcount_section/) {
+ #
+ # Somehow the make process can execute this script on an
+ # object twice. If it does, we would duplicate the mcount
+ # section and it will cause the function tracer self test
+ # to fail. Check if the mcount section exists, and if it does,
+ # warn and exit.
+ #
+ print STDERR "ERROR: $mcount_section already in $inputfile\n" .
+ "\tThis may be an indication that your build is corrupted.\n" .
+ "\tDelete $inputfile and try again. If the same object file\n" .
+ "\tstill causes an issue, then disable CONFIG_DYNAMIC_FTRACE.\n";
+ exit(-1);
+ }
+
# is it a section?
if (/$section_regex/) {
$read_headers = 0;
@@ -392,7 +427,7 @@ while (<IN>) {
$read_function = 0;
}
# print out any recorded offsets
- update_funcs() if (defined($ref_func));
+ update_funcs();
# reset all markers and arrays
$text_found = 0;
@@ -421,21 +456,7 @@ while (<IN>) {
$offset = hex $1;
}
}
- } elsif ($read_headers && /$mcount_section/) {
- #
- # Somehow the make process can execute this script on an
- # object twice. If it does, we would duplicate the mcount
- # section and it will cause the function tracer self test
- # to fail. Check if the mcount section exists, and if it does,
- # warn and exit.
- #
- print STDERR "ERROR: $mcount_section already in $inputfile\n" .
- "\tThis may be an indication that your build is corrupted.\n" .
- "\tDelete $inputfile and try again. If the same object file\n" .
- "\tstill causes an issue, then disable CONFIG_DYNAMIC_FTRACE.\n";
- exit(-1);
}
-
# is this a call site to mcount? If so, record it to print later
if ($text_found && /$mcount_regex/) {
$offsets[$#offsets + 1] = hex $1;
@@ -443,7 +464,7 @@ while (<IN>) {
}
# dump out anymore offsets that may have been found
-update_funcs() if (defined($ref_func));
+update_funcs();
# If we did not find any mcount callers, we are done (do nothing).
if (!$opened) {
diff --git a/scripts/selinux/Makefile b/scripts/selinux/Makefile
index ca4b1ec01822..e8049da1831f 100644
--- a/scripts/selinux/Makefile
+++ b/scripts/selinux/Makefile
@@ -1,2 +1,2 @@
-subdir-y := mdp
-subdir- += mdp
+subdir-y := mdp genheaders
+subdir- += mdp genheaders
diff --git a/scripts/selinux/genheaders/.gitignore b/scripts/selinux/genheaders/.gitignore
new file mode 100644
index 000000000000..4c0b646ff8d5
--- /dev/null
+++ b/scripts/selinux/genheaders/.gitignore
@@ -0,0 +1 @@
+genheaders
diff --git a/scripts/selinux/genheaders/Makefile b/scripts/selinux/genheaders/Makefile
new file mode 100644
index 000000000000..417b165008ee
--- /dev/null
+++ b/scripts/selinux/genheaders/Makefile
@@ -0,0 +1,5 @@
+hostprogs-y := genheaders
+HOST_EXTRACFLAGS += -Isecurity/selinux/include
+
+always := $(hostprogs-y)
+clean-files := $(hostprogs-y)
diff --git a/scripts/selinux/genheaders/genheaders.c b/scripts/selinux/genheaders/genheaders.c
new file mode 100644
index 000000000000..24626968055d
--- /dev/null
+++ b/scripts/selinux/genheaders/genheaders.c
@@ -0,0 +1,118 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+struct security_class_mapping {
+ const char *name;
+ const char *perms[sizeof(unsigned) * 8 + 1];
+};
+
+#include "classmap.h"
+#include "initial_sid_to_string.h"
+
+#define max(x, y) (((int)(x) > (int)(y)) ? x : y)
+
+const char *progname;
+
+static void usage(void)
+{
+ printf("usage: %s flask.h av_permissions.h\n", progname);
+ exit(1);
+}
+
+static char *stoupperx(const char *s)
+{
+ char *s2 = strdup(s);
+ char *p;
+
+ if (!s2) {
+ fprintf(stderr, "%s: out of memory\n", progname);
+ exit(3);
+ }
+
+ for (p = s2; *p; p++)
+ *p = toupper(*p);
+ return s2;
+}
+
+int main(int argc, char *argv[])
+{
+ int i, j, k;
+ int isids_len;
+ FILE *fout;
+
+ progname = argv[0];
+
+ if (argc < 3)
+ usage();
+
+ fout = fopen(argv[1], "w");
+ if (!fout) {
+ fprintf(stderr, "Could not open %s for writing: %s\n",
+ argv[1], strerror(errno));
+ exit(2);
+ }
+
+ for (i = 0; secclass_map[i].name; i++) {
+ struct security_class_mapping *map = &secclass_map[i];
+ map->name = stoupperx(map->name);
+ for (j = 0; map->perms[j]; j++)
+ map->perms[j] = stoupperx(map->perms[j]);
+ }
+
+ isids_len = sizeof(initial_sid_to_string) / sizeof (char *);
+ for (i = 1; i < isids_len; i++)
+ initial_sid_to_string[i] = stoupperx(initial_sid_to_string[i]);
+
+ fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
+ fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n");
+
+ for (i = 0; secclass_map[i].name; i++) {
+ struct security_class_mapping *map = &secclass_map[i];
+ fprintf(fout, "#define SECCLASS_%s", map->name);
+ for (j = 0; j < max(1, 40 - strlen(map->name)); j++)
+ fprintf(fout, " ");
+ fprintf(fout, "%2d\n", i+1);
+ }
+
+ fprintf(fout, "\n");
+
+ for (i = 1; i < isids_len; i++) {
+ char *s = initial_sid_to_string[i];
+ fprintf(fout, "#define SECINITSID_%s", s);
+ for (j = 0; j < max(1, 40 - strlen(s)); j++)
+ fprintf(fout, " ");
+ fprintf(fout, "%2d\n", i);
+ }
+ fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1);
+ fprintf(fout, "\n#endif\n");
+ fclose(fout);
+
+ fout = fopen(argv[2], "w");
+ if (!fout) {
+ fprintf(stderr, "Could not open %s for writing: %s\n",
+ argv[2], strerror(errno));
+ exit(4);
+ }
+
+ fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
+ fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n");
+
+ for (i = 0; secclass_map[i].name; i++) {
+ struct security_class_mapping *map = &secclass_map[i];
+ for (j = 0; map->perms[j]; j++) {
+ fprintf(fout, "#define %s__%s", map->name,
+ map->perms[j]);
+ for (k = 0; k < max(1, 40 - strlen(map->name) - strlen(map->perms[j])); k++)
+ fprintf(fout, " ");
+ fprintf(fout, "0x%08xUL\n", (1<<j));
+ }
+ }
+
+ fprintf(fout, "\n#endif\n");
+ fclose(fout);
+ exit(0);
+}
diff --git a/scripts/selinux/mdp/mdp.c b/scripts/selinux/mdp/mdp.c
index b4ced8562587..62b34ce1f50d 100644
--- a/scripts/selinux/mdp/mdp.c
+++ b/scripts/selinux/mdp/mdp.c
@@ -29,86 +29,27 @@
#include <unistd.h>
#include <string.h>
-#include "flask.h"
-
static void usage(char *name)
{
printf("usage: %s [-m] policy_file context_file\n", name);
exit(1);
}
-static void find_common_name(char *cname, char *dest, int len)
-{
- char *start, *end;
-
- start = strchr(cname, '_')+1;
- end = strchr(start, '_');
- if (!start || !end || start-cname > len || end-start > len) {
- printf("Error with commons defines\n");
- exit(1);
- }
- strncpy(dest, start, end-start);
- dest[end-start] = '\0';
-}
-
-#define S_(x) x,
-static char *classlist[] = {
-#include "class_to_string.h"
- NULL
+/* Class/perm mapping support */
+struct security_class_mapping {
+ const char *name;
+ const char *perms[sizeof(unsigned) * 8 + 1];
};
-#undef S_
+#include "classmap.h"
#include "initial_sid_to_string.h"
-#define TB_(x) char *x[] = {
-#define TE_(x) NULL };
-#define S_(x) x,
-#include "common_perm_to_string.h"
-#undef TB_
-#undef TE_
-#undef S_
-
-struct common {
- char *cname;
- char **perms;
-};
-struct common common[] = {
-#define TB_(x) { #x, x },
-#define S_(x)
-#define TE_(x)
-#include "common_perm_to_string.h"
-#undef TB_
-#undef TE_
-#undef S_
-};
-
-#define S_(x, y, z) {x, #y},
-struct av_inherit {
- int class;
- char *common;
-};
-struct av_inherit av_inherit[] = {
-#include "av_inherit.h"
-};
-#undef S_
-
-#include "av_permissions.h"
-#define S_(x, y, z) {x, y, z},
-struct av_perms {
- int class;
- int perm_i;
- char *perm_s;
-};
-struct av_perms av_perms[] = {
-#include "av_perm_to_string.h"
-};
-#undef S_
-
int main(int argc, char *argv[])
{
int i, j, mls = 0;
+ int initial_sid_to_string_len;
char **arg, *polout, *ctxout;
- int classlist_len, initial_sid_to_string_len;
+
FILE *fout;
if (argc < 3)
@@ -127,64 +68,25 @@ int main(int argc, char *argv[])
usage(argv[0]);
}
- classlist_len = sizeof(classlist) / sizeof(char *);
/* print out the classes */
- for (i=1; i < classlist_len; i++) {
- if(classlist[i])
- fprintf(fout, "class %s\n", classlist[i]);
- else
- fprintf(fout, "class user%d\n", i);
- }
+ for (i = 0; secclass_map[i].name; i++)
+ fprintf(fout, "class %s\n", secclass_map[i].name);
fprintf(fout, "\n");
initial_sid_to_string_len = sizeof(initial_sid_to_string) / sizeof (char *);
/* print out the sids */
- for (i=1; i < initial_sid_to_string_len; i++)
+ for (i = 1; i < initial_sid_to_string_len; i++)
fprintf(fout, "sid %s\n", initial_sid_to_string[i]);
fprintf(fout, "\n");
- /* print out the commons */
- for (i=0; i< sizeof(common)/sizeof(struct common); i++) {
- char cname[101];
- find_common_name(common[i].cname, cname, 100);
- cname[100] = '\0';
- fprintf(fout, "common %s\n{\n", cname);
- for (j=0; common[i].perms[j]; j++)
- fprintf(fout, "\t%s\n", common[i].perms[j]);
- fprintf(fout, "}\n\n");
- }
- fprintf(fout, "\n");
-
/* print out the class permissions */
- for (i=1; i < classlist_len; i++) {
- if (classlist[i]) {
- int firstperm = -1, numperms = 0;
-
- fprintf(fout, "class %s\n", classlist[i]);
- /* does it inherit from a common? */
- for (j=0; j < sizeof(av_inherit)/sizeof(struct av_inherit); j++)
- if (av_inherit[j].class == i)
- fprintf(fout, "inherits %s\n", av_inherit[j].common);
-
- for (j=0; j < sizeof(av_perms)/sizeof(struct av_perms); j++) {
- if (av_perms[j].class == i) {
- if (firstperm == -1)
- firstperm = j;
- numperms++;
- }
- }
- if (!numperms) {
- fprintf(fout, "\n");
- continue;
- }
-
- fprintf(fout, "{\n");
- /* print out the av_perms */
- for (j=0; j < numperms; j++) {
- fprintf(fout, "\t%s\n", av_perms[firstperm+j].perm_s);
- }
- fprintf(fout, "}\n\n");
- }
+ for (i = 0; secclass_map[i].name; i++) {
+ struct security_class_mapping *map = &secclass_map[i];
+ fprintf(fout, "class %s\n", map->name);
+ fprintf(fout, "{\n");
+ for (j = 0; map->perms[j]; j++)
+ fprintf(fout, "\t%s\n", map->perms[j]);
+ fprintf(fout, "}\n\n");
}
fprintf(fout, "\n");
@@ -197,31 +99,34 @@ int main(int argc, char *argv[])
/* types, roles, and allows */
fprintf(fout, "type base_t;\n");
fprintf(fout, "role base_r types { base_t };\n");
- for (i=1; i < classlist_len; i++) {
- if (classlist[i])
- fprintf(fout, "allow base_t base_t:%s *;\n", classlist[i]);
- else
- fprintf(fout, "allow base_t base_t:user%d *;\n", i);
- }
+ for (i = 0; secclass_map[i].name; i++)
+ fprintf(fout, "allow base_t base_t:%s *;\n",
+ secclass_map[i].name);
fprintf(fout, "user user_u roles { base_r };\n");
fprintf(fout, "\n");
/* default sids */
- for (i=1; i < initial_sid_to_string_len; i++)
+ for (i = 1; i < initial_sid_to_string_len; i++)
fprintf(fout, "sid %s user_u:base_r:base_t\n", initial_sid_to_string[i]);
fprintf(fout, "\n");
-
fprintf(fout, "fs_use_xattr ext2 user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_xattr ext3 user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_xattr ext4 user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_xattr jfs user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_xattr xfs user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_xattr reiserfs user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_xattr jffs2 user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_xattr gfs2 user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_xattr lustre user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_task eventpollfs user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_task pipefs user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_task sockfs user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_trans mqueue user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_trans devpts user_u:base_r:base_t;\n");
+ fprintf(fout, "fs_use_trans hugetlbfs user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_trans tmpfs user_u:base_r:base_t;\n");
fprintf(fout, "fs_use_trans shm user_u:base_r:base_t;\n");