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authorDavid S. Miller <davem@davemloft.net>2009-12-05 18:22:26 -0500
committerDavid S. Miller <davem@davemloft.net>2009-12-05 18:22:26 -0500
commit28b4d5cc17c20786848cdc07b7ea237a309776bb (patch)
treebae406a4b17229dcce7c11be5073f7a67665e477 /scripts
parentd29cecda036f251aee4947f47eea0fe9ed8cc931 (diff)
parent96fa2b508d2d3fe040cf4ef2fffb955f0a537ea1 (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: drivers/net/pcmcia/fmvj18x_cs.c drivers/net/pcmcia/nmclan_cs.c drivers/net/pcmcia/xirc2ps_cs.c drivers/net/wireless/ray_cs.c
Diffstat (limited to 'scripts')
-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
6 files changed, 274 insertions, 224 deletions
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 @@
6# all the offsets to the calls to mcount. 6# all the offsets to the calls to mcount.
7# 7#
8# 8#
9# What we want to end up with is a section in vmlinux called 9# What we want to end up with this is that each object file will have a
10# __mcount_loc that contains a list of pointers to all the 10# section called __mcount_loc that will hold the list of pointers to mcount
11# call sites in the kernel that call mcount. Later on boot up, the kernel 11# callers. After final linking, the vmlinux will have within .init.data the
12# will read this list, save the locations and turn them into nops. 12# list of all callers to mcount between __start_mcount_loc and __stop_mcount_loc.
13# When tracing or profiling is later enabled, these locations will then 13# Later on boot up, the kernel will read this list, save the locations and turn
14# be converted back to pointers to some function. 14# them into nops. When tracing or profiling is later enabled, these locations
15# will then be converted back to pointers to some function.
15# 16#
16# This is no easy feat. This script is called just after the original 17# This is no easy feat. This script is called just after the original
17# object is compiled and before it is linked. 18# object is compiled and before it is linked.
18# 19#
19# The references to the call sites are offsets from the section of text 20# When parse this object file using 'objdump', the references to the call
20# that the call site is in. Hence, all functions in a section that 21# sites are offsets from the section that the call site is in. Hence, all
21# has a call site to mcount, will have the offset from the beginning of 22# functions in a section that has a call site to mcount, will have the
22# the section and not the beginning of the function. 23# offset from the beginning of the section and not the beginning of the
24# function.
25#
26# But where this section will reside finally in vmlinx is undetermined at
27# this point. So we can't use this kind of offsets to record the final
28# address of this call site.
29#
30# The trick is to change the call offset referring the start of a section to
31# referring a function symbol in this section. During the link step, 'ld' will
32# compute the final address according to the information we record.
23# 33#
24# The trick is to find a way to record the beginning of the section.
25# The way we do this is to look at the first function in the section
26# which will also be the location of that section after final link.
27# e.g. 34# e.g.
28# 35#
29# .section ".sched.text", "ax" 36# .section ".sched.text", "ax"
30# .globl my_func
31# my_func:
32# [...] 37# [...]
33# call mcount (offset: 0x5) 38# func1:
39# [...]
40# call mcount (offset: 0x10)
34# [...] 41# [...]
35# ret 42# ret
36# other_func: 43# .globl fun2
44# func2: (offset: 0x20)
37# [...] 45# [...]
38# call mcount (offset: 0x1b) 46# [...]
47# ret
48# func3:
49# [...]
50# call mcount (offset: 0x30)
39# [...] 51# [...]
40# 52#
41# Both relocation offsets for the mcounts in the above example will be 53# Both relocation offsets for the mcounts in the above example will be
42# offset from .sched.text. If we make another file called tmp.s with: 54# offset from .sched.text. If we choose global symbol func2 as a reference and
55# make another file called tmp.s with the new offsets:
43# 56#
44# .section __mcount_loc 57# .section __mcount_loc
45# .quad my_func + 0x5 58# .quad func2 - 0x10
46# .quad my_func + 0x1b 59# .quad func2 + 0x10
47# 60#
48# We can then compile this tmp.s into tmp.o, and link it to the original 61# We can then compile this tmp.s into tmp.o, and link it back to the original
49# object. 62# object.
50# 63#
51# But this gets hard if my_func is not globl (a static function). 64# In our algorithm, we will choose the first global function we meet in this
52# In such a case we have: 65# section as the reference. But this gets hard if there is no global functions
66# in this section. In such a case we have to select a local one. E.g. func1:
53# 67#
54# .section ".sched.text", "ax" 68# .section ".sched.text", "ax"
55# my_func: 69# func1:
56# [...] 70# [...]
57# call mcount (offset: 0x5) 71# call mcount (offset: 0x10)
58# [...] 72# [...]
59# ret 73# ret
60# other_func: 74# func2:
61# [...] 75# [...]
62# call mcount (offset: 0x1b) 76# call mcount (offset: 0x20)
63# [...] 77# [...]
78# .section "other.section"
64# 79#
65# If we make the tmp.s the same as above, when we link together with 80# If we make the tmp.s the same as above, when we link together with
66# the original object, we will end up with two symbols for my_func: 81# the original object, we will end up with two symbols for func1:
67# one local, one global. After final compile, we will end up with 82# one local, one global. After final compile, we will end up with
68# an undefined reference to my_func. 83# an undefined reference to func1 or a wrong reference to another global
84# func1 in other files.
69# 85#
70# Since local objects can reference local variables, we need to find 86# Since local objects can reference local variables, we need to find
71# a way to make tmp.o reference the local objects of the original object 87# a way to make tmp.o reference the local objects of the original object
72# file after it is linked together. To do this, we convert the my_func 88# file after it is linked together. To do this, we convert func1
73# into a global symbol before linking tmp.o. Then after we link tmp.o 89# into a global symbol before linking tmp.o. Then after we link tmp.o
74# we will only have a single symbol for my_func that is global. 90# we will only have a single symbol for func1 that is global.
75# We can convert my_func back into a local symbol and we are done. 91# We can convert func1 back into a local symbol and we are done.
76# 92#
77# Here are the steps we take: 93# Here are the steps we take:
78# 94#
79# 1) Record all the local symbols by using 'nm' 95# 1) Record all the local and weak symbols by using 'nm'
80# 2) Use objdump to find all the call site offsets and sections for 96# 2) Use objdump to find all the call site offsets and sections for
81# mcount. 97# mcount.
82# 3) Compile the list into its own object. 98# 3) Compile the list into its own object.
@@ -86,10 +102,8 @@
86# 6) Link together this new object with the list object. 102# 6) Link together this new object with the list object.
87# 7) Convert the local functions back to local symbols and rename 103# 7) Convert the local functions back to local symbols and rename
88# the result as the original object. 104# the result as the original object.
89# End.
90# 8) Link the object with the list object. 105# 8) Link the object with the list object.
91# 9) Move the result back to the original object. 106# 9) Move the result back to the original object.
92# End.
93# 107#
94 108
95use strict; 109use strict;
@@ -99,7 +113,7 @@ $P =~ s@.*/@@g;
99 113
100my $V = '0.1'; 114my $V = '0.1';
101 115
102if ($#ARGV < 7) { 116if ($#ARGV != 10) {
103 print "usage: $P arch bits objdump objcopy cc ld nm rm mv is_module inputfile\n"; 117 print "usage: $P arch bits objdump objcopy cc ld nm rm mv is_module inputfile\n";
104 print "version: $V\n"; 118 print "version: $V\n";
105 exit(1); 119 exit(1);
@@ -109,7 +123,7 @@ my ($arch, $bits, $objdump, $objcopy, $cc,
109 $ld, $nm, $rm, $mv, $is_module, $inputfile) = @ARGV; 123 $ld, $nm, $rm, $mv, $is_module, $inputfile) = @ARGV;
110 124
111# This file refers to mcount and shouldn't be ftraced, so lets' ignore it 125# This file refers to mcount and shouldn't be ftraced, so lets' ignore it
112if ($inputfile eq "kernel/trace/ftrace.o") { 126if ($inputfile =~ m,kernel/trace/ftrace\.o$,) {
113 exit(0); 127 exit(0);
114} 128}
115 129
@@ -119,6 +133,7 @@ my %text_sections = (
119 ".sched.text" => 1, 133 ".sched.text" => 1,
120 ".spinlock.text" => 1, 134 ".spinlock.text" => 1,
121 ".irqentry.text" => 1, 135 ".irqentry.text" => 1,
136 ".text.unlikely" => 1,
122); 137);
123 138
124$objdump = "objdump" if ((length $objdump) == 0); 139$objdump = "objdump" if ((length $objdump) == 0);
@@ -137,13 +152,47 @@ my %weak; # List of weak functions
137my %convert; # List of local functions used that needs conversion 152my %convert; # List of local functions used that needs conversion
138 153
139my $type; 154my $type;
140my $nm_regex; # Find the local functions (return function) 155my $local_regex; # Match a local function (return function)
156my $weak_regex; # Match a weak function (return function)
141my $section_regex; # Find the start of a section 157my $section_regex; # Find the start of a section
142my $function_regex; # Find the name of a function 158my $function_regex; # Find the name of a function
143 # (return offset and func name) 159 # (return offset and func name)
144my $mcount_regex; # Find the call site to mcount (return offset) 160my $mcount_regex; # Find the call site to mcount (return offset)
145my $alignment; # The .align value to use for $mcount_section 161my $alignment; # The .align value to use for $mcount_section
146my $section_type; # Section header plus possible alignment command 162my $section_type; # Section header plus possible alignment command
163my $can_use_local = 0; # If we can use local function references
164
165# Shut up recordmcount if user has older objcopy
166my $quiet_recordmcount = ".tmp_quiet_recordmcount";
167my $print_warning = 1;
168$print_warning = 0 if ( -f $quiet_recordmcount);
169
170##
171# check_objcopy - whether objcopy supports --globalize-symbols
172#
173# --globalize-symbols came out in 2.17, we must test the version
174# of objcopy, and if it is less than 2.17, then we can not
175# record local functions.
176sub check_objcopy
177{
178 open (IN, "$objcopy --version |") or die "error running $objcopy";
179 while (<IN>) {
180 if (/objcopy.*\s(\d+)\.(\d+)/) {
181 $can_use_local = 1 if ($1 > 2 || ($1 == 2 && $2 >= 17));
182 last;
183 }
184 }
185 close (IN);
186
187 if (!$can_use_local && $print_warning) {
188 print STDERR "WARNING: could not find objcopy version or version " .
189 "is less than 2.17.\n" .
190 "\tLocal function references are disabled.\n";
191 open (QUIET, ">$quiet_recordmcount");
192 printf QUIET "Disables the warning from recordmcount.pl\n";
193 close QUIET;
194 }
195}
147 196
148if ($arch eq "x86") { 197if ($arch eq "x86") {
149 if ($bits == 64) { 198 if ($bits == 64) {
@@ -157,7 +206,8 @@ if ($arch eq "x86") {
157# We base the defaults off of i386, the other archs may 206# We base the defaults off of i386, the other archs may
158# feel free to change them in the below if statements. 207# feel free to change them in the below if statements.
159# 208#
160$nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)"; 209$local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
210$weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
161$section_regex = "Disassembly of section\\s+(\\S+):"; 211$section_regex = "Disassembly of section\\s+(\\S+):";
162$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:"; 212$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
163$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$"; 213$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
@@ -206,7 +256,7 @@ if ($arch eq "x86_64") {
206 $cc .= " -m32"; 256 $cc .= " -m32";
207 257
208} elsif ($arch eq "powerpc") { 258} elsif ($arch eq "powerpc") {
209 $nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)"; 259 $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";
210 $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:"; 260 $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:";
211 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$"; 261 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$";
212 262
@@ -278,44 +328,17 @@ if ($filename =~ m,^(.*)(\.\S),) {
278my $mcount_s = $dirname . "/.tmp_mc_" . $prefix . ".s"; 328my $mcount_s = $dirname . "/.tmp_mc_" . $prefix . ".s";
279my $mcount_o = $dirname . "/.tmp_mc_" . $prefix . ".o"; 329my $mcount_o = $dirname . "/.tmp_mc_" . $prefix . ".o";
280 330
281# 331check_objcopy();
282# --globalize-symbols came out in 2.17, we must test the version
283# of objcopy, and if it is less than 2.17, then we can not
284# record local functions.
285my $use_locals = 01;
286my $local_warn_once = 0;
287my $found_version = 0;
288
289open (IN, "$objcopy --version |") || die "error running $objcopy";
290while (<IN>) {
291 if (/objcopy.*\s(\d+)\.(\d+)/) {
292 my $major = $1;
293 my $minor = $2;
294
295 $found_version = 1;
296 if ($major < 2 ||
297 ($major == 2 && $minor < 17)) {
298 $use_locals = 0;
299 }
300 last;
301 }
302}
303close (IN);
304
305if (!$found_version) {
306 print STDERR "WARNING: could not find objcopy version.\n" .
307 "\tDisabling local function references.\n";
308}
309 332
310# 333#
311# Step 1: find all the local (static functions) and weak symbols. 334# Step 1: find all the local (static functions) and weak symbols.
312# 't' is local, 'w/W' is weak (we never use a weak function) 335# 't' is local, 'w/W' is weak
313# 336#
314open (IN, "$nm $inputfile|") || die "error running $nm"; 337open (IN, "$nm $inputfile|") || die "error running $nm";
315while (<IN>) { 338while (<IN>) {
316 if (/$nm_regex/) { 339 if (/$local_regex/) {
317 $locals{$1} = 1; 340 $locals{$1} = 1;
318 } elsif (/^[0-9a-fA-F]+\s+([wW])\s+(\S+)/) { 341 } elsif (/$weak_regex/) {
319 $weak{$2} = $1; 342 $weak{$2} = $1;
320 } 343 }
321} 344}
@@ -333,26 +356,20 @@ my $offset = 0; # offset of ref_func to section beginning
333# 356#
334sub update_funcs 357sub update_funcs
335{ 358{
336 return if ($#offsets < 0); 359 return unless ($ref_func and @offsets);
337
338 defined($ref_func) || die "No function to reference";
339 360
340 # A section only had a weak function, to represent it. 361 # Sanity check on weak function. A weak function may be overwritten by
341 # Unfortunately, a weak function may be overwritten by another 362 # another function of the same name, making all these offsets incorrect.
342 # function of the same name, making all these offsets incorrect.
343 # To be safe, we simply print a warning and bail.
344 if (defined $weak{$ref_func}) { 363 if (defined $weak{$ref_func}) {
345 print STDERR 364 die "$inputfile: ERROR: referencing weak function" .
346 "$inputfile: WARNING: referencing weak function" .
347 " $ref_func for mcount\n"; 365 " $ref_func for mcount\n";
348 return;
349 } 366 }
350 367
351 # is this function static? If so, note this fact. 368 # is this function static? If so, note this fact.
352 if (defined $locals{$ref_func}) { 369 if (defined $locals{$ref_func}) {
353 370
354 # only use locals if objcopy supports globalize-symbols 371 # only use locals if objcopy supports globalize-symbols
355 if (!$use_locals) { 372 if (!$can_use_local) {
356 return; 373 return;
357 } 374 }
358 $convert{$ref_func} = 1; 375 $convert{$ref_func} = 1;
@@ -378,9 +395,27 @@ open(IN, "$objdump -hdr $inputfile|") || die "error running $objdump";
378 395
379my $text; 396my $text;
380 397
398
399# read headers first
381my $read_headers = 1; 400my $read_headers = 1;
382 401
383while (<IN>) { 402while (<IN>) {
403
404 if ($read_headers && /$mcount_section/) {
405 #
406 # Somehow the make process can execute this script on an
407 # object twice. If it does, we would duplicate the mcount
408 # section and it will cause the function tracer self test
409 # to fail. Check if the mcount section exists, and if it does,
410 # warn and exit.
411 #
412 print STDERR "ERROR: $mcount_section already in $inputfile\n" .
413 "\tThis may be an indication that your build is corrupted.\n" .
414 "\tDelete $inputfile and try again. If the same object file\n" .
415 "\tstill causes an issue, then disable CONFIG_DYNAMIC_FTRACE.\n";
416 exit(-1);
417 }
418
384 # is it a section? 419 # is it a section?
385 if (/$section_regex/) { 420 if (/$section_regex/) {
386 $read_headers = 0; 421 $read_headers = 0;
@@ -392,7 +427,7 @@ while (<IN>) {
392 $read_function = 0; 427 $read_function = 0;
393 } 428 }
394 # print out any recorded offsets 429 # print out any recorded offsets
395 update_funcs() if (defined($ref_func)); 430 update_funcs();
396 431
397 # reset all markers and arrays 432 # reset all markers and arrays
398 $text_found = 0; 433 $text_found = 0;
@@ -421,21 +456,7 @@ while (<IN>) {
421 $offset = hex $1; 456 $offset = hex $1;
422 } 457 }
423 } 458 }
424 } elsif ($read_headers && /$mcount_section/) {
425 #
426 # Somehow the make process can execute this script on an
427 # object twice. If it does, we would duplicate the mcount
428 # section and it will cause the function tracer self test
429 # to fail. Check if the mcount section exists, and if it does,
430 # warn and exit.
431 #
432 print STDERR "ERROR: $mcount_section already in $inputfile\n" .
433 "\tThis may be an indication that your build is corrupted.\n" .
434 "\tDelete $inputfile and try again. If the same object file\n" .
435 "\tstill causes an issue, then disable CONFIG_DYNAMIC_FTRACE.\n";
436 exit(-1);
437 } 459 }
438
439 # is this a call site to mcount? If so, record it to print later 460 # is this a call site to mcount? If so, record it to print later
440 if ($text_found && /$mcount_regex/) { 461 if ($text_found && /$mcount_regex/) {
441 $offsets[$#offsets + 1] = hex $1; 462 $offsets[$#offsets + 1] = hex $1;
@@ -443,7 +464,7 @@ while (<IN>) {
443} 464}
444 465
445# dump out anymore offsets that may have been found 466# dump out anymore offsets that may have been found
446update_funcs() if (defined($ref_func)); 467update_funcs();
447 468
448# If we did not find any mcount callers, we are done (do nothing). 469# If we did not find any mcount callers, we are done (do nothing).
449if (!$opened) { 470if (!$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 @@
1subdir-y := mdp 1subdir-y := mdp genheaders
2subdir- += mdp 2subdir- += 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 @@
1hostprogs-y := genheaders
2HOST_EXTRACFLAGS += -Isecurity/selinux/include
3
4always := $(hostprogs-y)
5clean-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 @@
1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <string.h>
5#include <errno.h>
6#include <ctype.h>
7
8struct security_class_mapping {
9 const char *name;
10 const char *perms[sizeof(unsigned) * 8 + 1];
11};
12
13#include "classmap.h"
14#include "initial_sid_to_string.h"
15
16#define max(x, y) (((int)(x) > (int)(y)) ? x : y)
17
18const char *progname;
19
20static void usage(void)
21{
22 printf("usage: %s flask.h av_permissions.h\n", progname);
23 exit(1);
24}
25
26static char *stoupperx(const char *s)
27{
28 char *s2 = strdup(s);
29 char *p;
30
31 if (!s2) {
32 fprintf(stderr, "%s: out of memory\n", progname);
33 exit(3);
34 }
35
36 for (p = s2; *p; p++)
37 *p = toupper(*p);
38 return s2;
39}
40
41int main(int argc, char *argv[])
42{
43 int i, j, k;
44 int isids_len;
45 FILE *fout;
46
47 progname = argv[0];
48
49 if (argc < 3)
50 usage();
51
52 fout = fopen(argv[1], "w");
53 if (!fout) {
54 fprintf(stderr, "Could not open %s for writing: %s\n",
55 argv[1], strerror(errno));
56 exit(2);
57 }
58
59 for (i = 0; secclass_map[i].name; i++) {
60 struct security_class_mapping *map = &secclass_map[i];
61 map->name = stoupperx(map->name);
62 for (j = 0; map->perms[j]; j++)
63 map->perms[j] = stoupperx(map->perms[j]);
64 }
65
66 isids_len = sizeof(initial_sid_to_string) / sizeof (char *);
67 for (i = 1; i < isids_len; i++)
68 initial_sid_to_string[i] = stoupperx(initial_sid_to_string[i]);
69
70 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
71 fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n");
72
73 for (i = 0; secclass_map[i].name; i++) {
74 struct security_class_mapping *map = &secclass_map[i];
75 fprintf(fout, "#define SECCLASS_%s", map->name);
76 for (j = 0; j < max(1, 40 - strlen(map->name)); j++)
77 fprintf(fout, " ");
78 fprintf(fout, "%2d\n", i+1);
79 }
80
81 fprintf(fout, "\n");
82
83 for (i = 1; i < isids_len; i++) {
84 char *s = initial_sid_to_string[i];
85 fprintf(fout, "#define SECINITSID_%s", s);
86 for (j = 0; j < max(1, 40 - strlen(s)); j++)
87 fprintf(fout, " ");
88 fprintf(fout, "%2d\n", i);
89 }
90 fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1);
91 fprintf(fout, "\n#endif\n");
92 fclose(fout);
93
94 fout = fopen(argv[2], "w");
95 if (!fout) {
96 fprintf(stderr, "Could not open %s for writing: %s\n",
97 argv[2], strerror(errno));
98 exit(4);
99 }
100
101 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
102 fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n");
103
104 for (i = 0; secclass_map[i].name; i++) {
105 struct security_class_mapping *map = &secclass_map[i];
106 for (j = 0; map->perms[j]; j++) {
107 fprintf(fout, "#define %s__%s", map->name,
108 map->perms[j]);
109 for (k = 0; k < max(1, 40 - strlen(map->name) - strlen(map->perms[j])); k++)
110 fprintf(fout, " ");
111 fprintf(fout, "0x%08xUL\n", (1<<j));
112 }
113 }
114
115 fprintf(fout, "\n#endif\n");
116 fclose(fout);
117 exit(0);
118}
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 @@
29#include <unistd.h> 29#include <unistd.h>
30#include <string.h> 30#include <string.h>
31 31
32#include "flask.h"
33
34static void usage(char *name) 32static void usage(char *name)
35{ 33{
36 printf("usage: %s [-m] policy_file context_file\n", name); 34 printf("usage: %s [-m] policy_file context_file\n", name);
37 exit(1); 35 exit(1);
38} 36}
39 37
40static void find_common_name(char *cname, char *dest, int len) 38/* Class/perm mapping support */
41{ 39struct security_class_mapping {
42 char *start, *end; 40 const char *name;
43 41 const char *perms[sizeof(unsigned) * 8 + 1];
44 start = strchr(cname, '_')+1;
45 end = strchr(start, '_');
46 if (!start || !end || start-cname > len || end-start > len) {
47 printf("Error with commons defines\n");
48 exit(1);
49 }
50 strncpy(dest, start, end-start);
51 dest[end-start] = '\0';
52}
53
54#define S_(x) x,
55static char *classlist[] = {
56#include "class_to_string.h"
57 NULL
58}; 42};
59#undef S_
60 43
44#include "classmap.h"
61#include "initial_sid_to_string.h" 45#include "initial_sid_to_string.h"
62 46
63#define TB_(x) char *x[] = {
64#define TE_(x) NULL };
65#define S_(x) x,
66#include "common_perm_to_string.h"
67#undef TB_
68#undef TE_
69#undef S_
70
71struct common {
72 char *cname;
73 char **perms;
74};
75struct common common[] = {
76#define TB_(x) { #x, x },
77#define S_(x)
78#define TE_(x)
79#include "common_perm_to_string.h"
80#undef TB_
81#undef TE_
82#undef S_
83};
84
85#define S_(x, y, z) {x, #y},
86struct av_inherit {
87 int class;
88 char *common;
89};
90struct av_inherit av_inherit[] = {
91#include "av_inherit.h"
92};
93#undef S_
94
95#include "av_permissions.h"
96#define S_(x, y, z) {x, y, z},
97struct av_perms {
98 int class;
99 int perm_i;
100 char *perm_s;
101};
102struct av_perms av_perms[] = {
103#include "av_perm_to_string.h"
104};
105#undef S_
106
107int main(int argc, char *argv[]) 47int main(int argc, char *argv[])
108{ 48{
109 int i, j, mls = 0; 49 int i, j, mls = 0;
50 int initial_sid_to_string_len;
110 char **arg, *polout, *ctxout; 51 char **arg, *polout, *ctxout;
111 int classlist_len, initial_sid_to_string_len; 52
112 FILE *fout; 53 FILE *fout;
113 54
114 if (argc < 3) 55 if (argc < 3)
@@ -127,64 +68,25 @@ int main(int argc, char *argv[])
127 usage(argv[0]); 68 usage(argv[0]);
128 } 69 }
129 70
130 classlist_len = sizeof(classlist) / sizeof(char *);
131 /* print out the classes */ 71 /* print out the classes */
132 for (i=1; i < classlist_len; i++) { 72 for (i = 0; secclass_map[i].name; i++)
133 if(classlist[i]) 73 fprintf(fout, "class %s\n", secclass_map[i].name);
134 fprintf(fout, "class %s\n", classlist[i]);
135 else
136 fprintf(fout, "class user%d\n", i);
137 }
138 fprintf(fout, "\n"); 74 fprintf(fout, "\n");
139 75
140 initial_sid_to_string_len = sizeof(initial_sid_to_string) / sizeof (char *); 76 initial_sid_to_string_len = sizeof(initial_sid_to_string) / sizeof (char *);
141 /* print out the sids */ 77 /* print out the sids */
142 for (i=1; i < initial_sid_to_string_len; i++) 78 for (i = 1; i < initial_sid_to_string_len; i++)
143 fprintf(fout, "sid %s\n", initial_sid_to_string[i]); 79 fprintf(fout, "sid %s\n", initial_sid_to_string[i]);
144 fprintf(fout, "\n"); 80 fprintf(fout, "\n");
145 81
146 /* print out the commons */
147 for (i=0; i< sizeof(common)/sizeof(struct common); i++) {
148 char cname[101];
149 find_common_name(common[i].cname, cname, 100);
150 cname[100] = '\0';
151 fprintf(fout, "common %s\n{\n", cname);
152 for (j=0; common[i].perms[j]; j++)
153 fprintf(fout, "\t%s\n", common[i].perms[j]);
154 fprintf(fout, "}\n\n");
155 }
156 fprintf(fout, "\n");
157
158 /* print out the class permissions */ 82 /* print out the class permissions */
159 for (i=1; i < classlist_len; i++) { 83 for (i = 0; secclass_map[i].name; i++) {
160 if (classlist[i]) { 84 struct security_class_mapping *map = &secclass_map[i];
161 int firstperm = -1, numperms = 0; 85 fprintf(fout, "class %s\n", map->name);
162 86 fprintf(fout, "{\n");
163 fprintf(fout, "class %s\n", classlist[i]); 87 for (j = 0; map->perms[j]; j++)
164 /* does it inherit from a common? */ 88 fprintf(fout, "\t%s\n", map->perms[j]);
165 for (j=0; j < sizeof(av_inherit)/sizeof(struct av_inherit); j++) 89 fprintf(fout, "}\n\n");
166 if (av_inherit[j].class == i)
167 fprintf(fout, "inherits %s\n", av_inherit[j].common);
168
169 for (j=0; j < sizeof(av_perms)/sizeof(struct av_perms); j++) {
170 if (av_perms[j].class == i) {
171 if (firstperm == -1)
172 firstperm = j;
173 numperms++;
174 }
175 }
176 if (!numperms) {
177 fprintf(fout, "\n");
178 continue;
179 }
180
181 fprintf(fout, "{\n");
182 /* print out the av_perms */
183 for (j=0; j < numperms; j++) {
184 fprintf(fout, "\t%s\n", av_perms[firstperm+j].perm_s);
185 }
186 fprintf(fout, "}\n\n");
187 }
188 } 90 }
189 fprintf(fout, "\n"); 91 fprintf(fout, "\n");
190 92
@@ -197,31 +99,34 @@ int main(int argc, char *argv[])
197 /* types, roles, and allows */ 99 /* types, roles, and allows */
198 fprintf(fout, "type base_t;\n"); 100 fprintf(fout, "type base_t;\n");
199 fprintf(fout, "role base_r types { base_t };\n"); 101 fprintf(fout, "role base_r types { base_t };\n");
200 for (i=1; i < classlist_len; i++) { 102 for (i = 0; secclass_map[i].name; i++)
201 if (classlist[i]) 103 fprintf(fout, "allow base_t base_t:%s *;\n",
202 fprintf(fout, "allow base_t base_t:%s *;\n", classlist[i]); 104 secclass_map[i].name);
203 else
204 fprintf(fout, "allow base_t base_t:user%d *;\n", i);
205 }
206 fprintf(fout, "user user_u roles { base_r };\n"); 105 fprintf(fout, "user user_u roles { base_r };\n");
207 fprintf(fout, "\n"); 106 fprintf(fout, "\n");
208 107
209 /* default sids */ 108 /* default sids */
210 for (i=1; i < initial_sid_to_string_len; i++) 109 for (i = 1; i < initial_sid_to_string_len; i++)
211 fprintf(fout, "sid %s user_u:base_r:base_t\n", initial_sid_to_string[i]); 110 fprintf(fout, "sid %s user_u:base_r:base_t\n", initial_sid_to_string[i]);
212 fprintf(fout, "\n"); 111 fprintf(fout, "\n");
213 112
214
215 fprintf(fout, "fs_use_xattr ext2 user_u:base_r:base_t;\n"); 113 fprintf(fout, "fs_use_xattr ext2 user_u:base_r:base_t;\n");
216 fprintf(fout, "fs_use_xattr ext3 user_u:base_r:base_t;\n"); 114 fprintf(fout, "fs_use_xattr ext3 user_u:base_r:base_t;\n");
115 fprintf(fout, "fs_use_xattr ext4 user_u:base_r:base_t;\n");
217 fprintf(fout, "fs_use_xattr jfs user_u:base_r:base_t;\n"); 116 fprintf(fout, "fs_use_xattr jfs user_u:base_r:base_t;\n");
218 fprintf(fout, "fs_use_xattr xfs user_u:base_r:base_t;\n"); 117 fprintf(fout, "fs_use_xattr xfs user_u:base_r:base_t;\n");
219 fprintf(fout, "fs_use_xattr reiserfs user_u:base_r:base_t;\n"); 118 fprintf(fout, "fs_use_xattr reiserfs user_u:base_r:base_t;\n");
119 fprintf(fout, "fs_use_xattr jffs2 user_u:base_r:base_t;\n");
120 fprintf(fout, "fs_use_xattr gfs2 user_u:base_r:base_t;\n");
121 fprintf(fout, "fs_use_xattr lustre user_u:base_r:base_t;\n");
220 122
123 fprintf(fout, "fs_use_task eventpollfs user_u:base_r:base_t;\n");
221 fprintf(fout, "fs_use_task pipefs user_u:base_r:base_t;\n"); 124 fprintf(fout, "fs_use_task pipefs user_u:base_r:base_t;\n");
222 fprintf(fout, "fs_use_task sockfs user_u:base_r:base_t;\n"); 125 fprintf(fout, "fs_use_task sockfs user_u:base_r:base_t;\n");
223 126
127 fprintf(fout, "fs_use_trans mqueue user_u:base_r:base_t;\n");
224 fprintf(fout, "fs_use_trans devpts user_u:base_r:base_t;\n"); 128 fprintf(fout, "fs_use_trans devpts user_u:base_r:base_t;\n");
129 fprintf(fout, "fs_use_trans hugetlbfs user_u:base_r:base_t;\n");
225 fprintf(fout, "fs_use_trans tmpfs user_u:base_r:base_t;\n"); 130 fprintf(fout, "fs_use_trans tmpfs user_u:base_r:base_t;\n");
226 fprintf(fout, "fs_use_trans shm user_u:base_r:base_t;\n"); 131 fprintf(fout, "fs_use_trans shm user_u:base_r:base_t;\n");
227 132