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selinux support by Yuichi Nakamura <ynakam@hitachisoft.jp> (HitachiSoft)

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This commit is contained in:
Denis Vlasenko 2007-03-10 16:58:49 +00:00
parent 4eb8b936cb
commit 49622d7846
14 changed files with 452 additions and 47 deletions
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7
coreutils/cp.c
View File

@ -3,6 +3,7 @@
* Mini cp implementation for busybox
*
* Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
* SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
* Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
*/
@ -50,6 +51,12 @@ int cp_main(int argc, char **argv)
if (flags & OPT_H) ... // deref command-line params only
*/
#if ENABLE_SELINUX
if (flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) {
selinux_or_die();
}
#endif
flags ^= FILEUTILS_DEREFERENCE; /* The sense of this flag was reversed. */
if (optind + 2 > argc) {

43
coreutils/id.c
View File

@ -10,6 +10,7 @@
/* BB_AUDIT SUSv3 _NOT_ compliant -- option -G is not currently supported. */
/* Hacked by Tito Ragusa (C) 2004 to handle usernames of whatever length and to
* be more similar to GNU id.
* -Z option support: by Yuichi Nakamura <ynakam@hitachisoft.jp>
*/
#include "busybox.h"
@ -17,14 +18,13 @@
#include <unistd.h>
#include <sys/types.h>
#ifdef CONFIG_SELINUX
#include <selinux/selinux.h> /* for is_selinux_enabled() */
#endif
#define PRINT_REAL 1
#define NAME_NOT_NUMBER 2
#define JUST_USER 4
#define JUST_GROUP 8
#if ENABLE_SELINUX
#define JUST_CONTEXT 16
#endif
static short printf_full(unsigned int id, const char *arg, const char prefix)
{
@ -47,11 +47,13 @@ int id_main(int argc, char **argv)
gid_t gid;
unsigned long flags;
short status;
#if ENABLE_SELINUX
security_context_t scontext;
#endif
/* Don't allow -n -r -nr -ug -rug -nug -rnug */
/* Don't allow more than one username */
opt_complementary = "?1:?:u--g:g--u:r?ug:n?ug";
flags = getopt32(argc, argv, "rnug");
opt_complementary = "?1:?:u--g:g--u:r?ug:n?ug" USE_SELINUX(":u--Z:Z--u:g--Z:Z--g");
flags = getopt32(argc, argv, "rnug" USE_SELINUX("Z"));
/* This values could be overwritten later */
uid = geteuid();
@ -69,14 +71,33 @@ int id_main(int argc, char **argv)
/* in this case PRINT_REAL is the same */
}
if (flags & (JUST_GROUP | JUST_USER)) {
if (flags & (JUST_GROUP | JUST_USER USE_SELINUX(| JUST_CONTEXT))) {
/* JUST_GROUP and JUST_USER are mutually exclusive */
if (flags & NAME_NOT_NUMBER) {
/* bb_getpwuid and bb_getgrgid exit on failure so puts cannot segfault */
puts((flags & JUST_USER) ? bb_getpwuid(NULL, uid, -1 ) : bb_getgrgid(NULL, gid, -1 ));
} else {
printf("%u\n", (flags & JUST_USER) ? uid : gid);
}
if (flags & JUST_USER) {
printf("%u\n", uid);
}
if (flags & JUST_GROUP) {
printf("%u\n", gid);
}
}
#if ENABLE_SELINUX
if (flags & JUST_CONTEXT) {
selinux_or_die();
if (argc - optind == 1) {
bb_error_msg_and_die("can't print security context when user specified");
}
if (getcon(&scontext)) {
bb_error_msg_and_die("can't get process context");
}
printf("%s\n", scontext);
}
#endif
/* exit */
fflush_stdout_and_exit(EXIT_SUCCESS);
}
@ -88,7 +109,7 @@ int id_main(int argc, char **argv)
/* bb_getgrgid doesn't exit on failure here */
status |= printf_full(gid, bb_getgrgid(NULL, gid, 0), 'g');
#ifdef CONFIG_SELINUX
#if ENABLE_SELINUX
if (is_selinux_enabled()) {
security_context_t mysid;
const char *context;

75
coreutils/install.c
View File

@ -21,10 +21,49 @@ static const struct option install_long_options[] = {
{ "group", 0, NULL, 'g' },
{ "mode", 0, NULL, 'm' },
{ "owner", 0, NULL, 'o' },
#if ENABLE_SELINUX
{ "context", 1, NULL, 'Z' },
{ "preserve_context", 0, NULL, 0xff },
{ "preserve-context", 0, NULL, 0xff },
#endif
{ 0, 0, 0, 0 }
};
#endif
#if ENABLE_SELINUX
static bool use_default_selinux_context = 1;
static void setdefaultfilecon(const char *path) {
struct stat s;
security_context_t scontext = NULL;
if (!is_selinux_enabled()) {
return;
}
if (lstat(path, &s) != 0) {
return;
}
if (matchpathcon(path, s.st_mode, &scontext) < 0) {
goto out;
}
if (strcmp(scontext, "<<none>>") == 0) {
goto out;
}
if (lsetfilecon(path, scontext) < 0) {
if (errno != ENOTSUP) {
bb_perror_msg("warning: failed to change context of %s to %s", path, scontext);
}
}
out:
freecon(scontext);
}
#endif
int install_main(int argc, char **argv);
int install_main(int argc, char **argv)
{
@ -37,7 +76,9 @@ int install_main(int argc, char **argv)
const char *mode_str;
int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
int ret = EXIT_SUCCESS, flags, i, isdir;
#if ENABLE_SELINUX
security_context_t scontext;
#endif
enum {
OPT_CMD = 0x1,
OPT_DIRECTORY = 0x2,
@ -46,14 +87,35 @@ int install_main(int argc, char **argv)
OPT_GROUP = 0x10,
OPT_MODE = 0x20,
OPT_OWNER = 0x40,
#if ENABLE_SELINUX
OPT_SET_SECURITY_CONTEXT = 0x80,
OPT_PRESERVE_SECURITY_CONTEXT = 0x100,
#endif
};
#if ENABLE_FEATURE_INSTALL_LONG_OPTIONS
applet_long_options = install_long_options;
#endif
opt_complementary = "?:s--d:d--s";
/* -c exists for backwards compatibility, its needed */
flags = getopt32(argc, argv, "cdpsg:m:o:", &gid_str, &mode_str, &uid_str);
opt_complementary = "?:s--d:d--s" USE_SELINUX(":Z--\xff:\xff--Z");
/* -c exists for backwards compatibility, it's needed */
flags = getopt32(argc, argv, "cdpsg:m:o:" USE_SELINUX("Z:"), &gid_str, &mode_str, &uid_str USE_SELINUX(, &scontext));
#if ENABLE_SELINUX
if (flags & OPT_PRESERVE_SECURITY_CONTEXT) {
use_default_selinux_context = 0;
copy_flags |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
selinux_or_die();
}
if (flags & OPT_SET_SECURITY_CONTEXT) {
selinux_or_die();
if (setfscreatecon(scontext) < 0) {
bb_error_msg_and_die("setfscreatecon(%s)", scontext); // perror?
}
use_default_selinux_context = 0;
copy_flags |= FILEUTILS_SET_SECURITY_CONTEXT;
}
#endif
/* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
if (flags & OPT_PRESERVE_TIME) {
@ -117,7 +179,10 @@ int install_main(int argc, char **argv)
bb_perror_msg("cannot change permissions of %s", dest);
ret = EXIT_FAILURE;
}
#if ENABLE_SELINUX
if (use_default_selinux_context)
setdefaultfilecon(dest);
#endif
/* Set the user and group id */
if ((flags & (OPT_OWNER|OPT_GROUP))
&& lchown(dest, uid, gid) == -1

20
coreutils/libcoreutils/getopt_mk_fifo_nod.c
View File

@ -30,11 +30,25 @@ mode_t getopt_mk_fifo_nod(int argc, char **argv)
{
mode_t mode = 0666;
char *smode = NULL;
getopt32(argc, argv, "m:", &smode);
if(smode) {
#if ENABLE_SELINUX
security_context_t scontext;
#endif
int opt;
opt = getopt32(argc, argv, "m:" USE_SELINUX("Z:"), &smode USE_SELINUX(,&scontext));
if (opt & 1) {
if (bb_parse_mode(smode, &mode))
umask(0);
}
#if ENABLE_SELINUX
if (opt & 2) {
selinux_or_die();
if (setfscreatecon(scontext)) {
bb_error_msg_and_die("cannot set default file creation context "
"to %s", scontext);
}
}
#endif
return mode;
}

6
coreutils/ls.c
View File

@ -716,7 +716,8 @@ static const char ls_options[] = "Cadil1gnsxAk"
USE_FEATURE_LS_RECURSIVE("R")
USE_FEATURE_HUMAN_READABLE("h")
USE_SELINUX("K")
USE_FEATURE_AUTOWIDTH("T:w:");
USE_FEATURE_AUTOWIDTH("T:w:")
USE_SELINUX("Z");
enum {
LIST_MASK_TRIGGER = 0,
@ -768,6 +769,9 @@ static const unsigned opt_flags[] = {
#endif
#if ENABLE_FEATURE_AUTOWIDTH
0, 0, /* T, w - ignored */
#endif
#if ENABLE_SELINUX
LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT, /* Z */
#endif
(1U<<31)
};

20
coreutils/mkdir.c
View File

@ -16,6 +16,9 @@
* conjunction with -m.
*/
/* Nov 28, 2006 Yoshinori Sato <ysato@users.sourceforge.jp>: Add SELinux Support.
*/
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h> /* struct option */
@ -25,6 +28,9 @@
static const struct option mkdir_long_options[] = {
{ "mode", 1, NULL, 'm' },
{ "parents", 0, NULL, 'p' },
#if ENABLE_SELINUX
{ "context", 1, NULL, 'Z' },
#endif
{ 0, 0, 0, 0 }
};
#endif
@ -37,11 +43,14 @@ int mkdir_main(int argc, char **argv)
int flags = 0;
unsigned opt;
char *smode;
#if ENABLE_SELINUX
security_context_t scontext;
#endif
#if ENABLE_FEATURE_MKDIR_LONG_OPTIONS
applet_long_options = mkdir_long_options;
#endif
opt = getopt32(argc, argv, "m:p", &smode);
opt = getopt32(argc, argv, "m:p" USE_SELINUX("Z:"), &smode USE_SELINUX(,&scontext));
if (opt & 1) {
mode = 0777;
if (!bb_parse_mode(smode, &mode)) {
@ -50,6 +59,15 @@ int mkdir_main(int argc, char **argv)
}
if (opt & 2)
flags |= FILEUTILS_RECUR;
#if ENABLE_SELINUX
if (opt & 4) {
selinux_or_die();
if (setfscreatecon(scontext)) {
bb_error_msg_and_die("cannot set default file creation context "
"to %s", scontext);
}
}
#endif
if (optind == argc) {
bb_show_usage();

9
coreutils/mv.c
View File

@ -3,6 +3,7 @@
* Mini mv implementation for busybox
*
* Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
* SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
@ -44,6 +45,7 @@ int mv_main(int argc, char **argv)
unsigned long flags;
int dest_exists;
int status = 0;
int copy_flag = 0;
#if ENABLE_FEATURE_MV_LONG_OPTIONS
applet_long_options = mv_long_options;
@ -113,8 +115,11 @@ DO_MOVE:
goto RET_1;
}
}
if ((copy_file(*argv, dest,
FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS) >= 0) &&
copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS;
#if ENABLE_SELINUX
copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
#endif
if ((copy_file(*argv, dest, copy_flag) >= 0) &&
(remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)) {
goto RET_0;
}

169
coreutils/stat.c
View File

@ -5,6 +5,7 @@
* Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation.
* Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
* Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
* Copyright (C) 2006 by Yoshinori Sato <ysato@users.sourceforge.jp>
*
* Written by Michael Meskes
* Taken from coreutils and turned into a busybox applet by Mike Frysinger
@ -17,6 +18,7 @@
/* vars to control behavior */
#define OPT_TERSE 2
#define OPT_DEREFERENCE 4
#define OPT_SELINUX 8
static long flags;
static char const *file_type(struct stat const *st)
@ -114,7 +116,8 @@ static char const *human_fstype(long f_type)
#ifdef CONFIG_FEATURE_STAT_FORMAT
/* print statfs info */
static void print_statfs(char *pformat, size_t buf_len, char m,
char const *filename, void const *data)
char const *filename, void const *data
USE_SELINUX(,security_context_t scontext) )
{
struct statfs const *statfsbuf = data;
@ -164,6 +167,14 @@ static void print_statfs(char *pformat, size_t buf_len, char m,
strncat(pformat, "jd", buf_len);
printf(pformat, (intmax_t) (statfsbuf->f_ffree));
break;
#if ENABLE_SELINUX
case 'C':
if (flags & OPT_SELINUX) {
strncat(pformat, "s", buf_len);
printf(scontext);
}
break;
#endif
default:
strncat(pformat, "c", buf_len);
printf(pformat, m);
@ -173,7 +184,8 @@ static void print_statfs(char *pformat, size_t buf_len, char m,
/* print stat info */
static void print_stat(char *pformat, size_t buf_len, char m,
char const *filename, void const *data)
char const *filename, void const *data
USE_SELINUX(, security_context_t scontext))
{
#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
struct stat *statbuf = (struct stat *) data;
@ -301,6 +313,14 @@ static void print_stat(char *pformat, size_t buf_len, char m,
strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
printf(pformat, (unsigned long int) statbuf->st_ctime);
break;
#if ENABLE_SELINUX
case 'C':
if (flags & OPT_SELINUX) {
strncat(pformat, "s", buf_len);
printf(pformat, scontext);
}
break;
#endif
default:
strncat(pformat, "c", buf_len);
printf(pformat, m);
@ -309,8 +329,9 @@ static void print_stat(char *pformat, size_t buf_len, char m,
}
static void print_it(char const *masterformat, char const *filename,
void (*print_func) (char *, size_t, char, char const *, void const *),
void const *data)
void (*print_func) (char *, size_t, char, char const *, void const *
USE_SELINUX(, security_context_t scontext)),
void const *data USE_SELINUX(, security_context_t scontext) )
{
char *b;
@ -350,7 +371,7 @@ static void print_it(char const *masterformat, char const *filename,
putchar('%');
break;
default:
print_func(dest, n_alloc, *p, filename, data);
print_func(dest, n_alloc, *p, filename, data USE_SELINUX(,scontext));
break;
}
}
@ -365,6 +386,16 @@ static int do_statfs(char const *filename, char const *format)
{
struct statfs statfsbuf;
#if ENABLE_SELINUX
security_context_t scontext = NULL;
if (flags & OPT_SELINUX) {
if ((flags & OPT_DEREFERENCE ? lgetfilecon(filename, scontext):
getfilecon(filename, scontext))< 0) {
bb_perror_msg(filename);
return 0;
}
}
#endif
if (statfs(filename, &statfsbuf) != 0) {
bb_perror_msg("cannot read file system information for '%s'", filename);
return 0;
@ -372,6 +403,7 @@ static int do_statfs(char const *filename, char const *format)
#ifdef CONFIG_FEATURE_STAT_FORMAT
if (format == NULL)
#ifndef ENABLE_SELINUX
format = (flags & OPT_TERSE
? "%n %i %l %t %s %b %f %a %c %d\n"
: " File: \"%n\"\n"
@ -379,9 +411,27 @@ static int do_statfs(char const *filename, char const *format)
"Block size: %-10s\n"
"Blocks: Total: %-10b Free: %-10f Available: %a\n"
"Inodes: Total: %-10c Free: %d");
print_it(format, filename, print_statfs, &statfsbuf);
print_it(format, filename, print_statfs, &statfsbuf USE_SELINUX(, scontext));
#else
format = (flags & OPT_TERSE
? (flags & OPT_SELINUX ? "%n %i %l %t %s %b %f %a %c %d %C\n":
"%n %i %l %t %s %b %f %a %c %d\n")
: (flags & OPT_SELINUX ?
" File: \"%n\"\n"
" ID: %-8i Namelen: %-7l Type: %T\n"
"Block size: %-10s\n"
"Blocks: Total: %-10b Free: %-10f Available: %a\n"
"Inodes: Total: %-10c Free: %d"
" S_context: %C\n":
" File: \"%n\"\n"
" ID: %-8i Namelen: %-7l Type: %T\n"
"Block size: %-10s\n"
"Blocks: Total: %-10b Free: %-10f Available: %a\n"
"Inodes: Total: %-10c Free: %d\n")
);
print_it(format, filename, print_statfs, &statfsbuf USE_SELINUX(, scontext));
#endif /* SELINUX */
#else /* FEATURE_STAT_FORMAT */
format = (flags & OPT_TERSE
? "%s %llx %lu "
: " File: \"%s\"\n"
@ -396,6 +446,7 @@ static int do_statfs(char const *filename, char const *format)
else
printf("Type: %s\n", human_fstype(statfsbuf.f_type));
#if !ENABLE_SELINUX
format = (flags & OPT_TERSE
? "%lu %ld %ld %ld %ld %ld\n"
: "Block size: %-10lu\n"
@ -408,8 +459,31 @@ static int do_statfs(char const *filename, char const *format)
(intmax_t) (statfsbuf.f_bavail),
(intmax_t) (statfsbuf.f_files),
(intmax_t) (statfsbuf.f_ffree));
#endif
#else
format = (flags & OPT_TERSE
? (flags & OPT_SELINUX ? "%lu %ld %ld %ld %ld %ld %C\n":
"%lu %ld %ld %ld %ld %ld\n")
: (flags & OPT_SELINUX ?
"Block size: %-10lu\n"
"Blocks: Total: %-10jd Free: %-10jd Available: %jd\n"
"Inodes: Total: %-10jd Free: %jd"
"S_context: %C\n":
"Block size: %-10lu\n"
"Blocks: Total: %-10jd Free: %-10jd Available: %jd\n"
"Inodes: Total: %-10jd Free: %jd\n"));
printf(format,
(unsigned long int) (statfsbuf.f_bsize),
(intmax_t) (statfsbuf.f_blocks),
(intmax_t) (statfsbuf.f_bfree),
(intmax_t) (statfsbuf.f_bavail),
(intmax_t) (statfsbuf.f_files),
(intmax_t) (statfsbuf.f_ffree),
scontext);
if (scontext)
freecon(scontext);
#endif
#endif /* FEATURE_STAT_FORMAT */
return 1;
}
@ -417,7 +491,16 @@ static int do_statfs(char const *filename, char const *format)
static int do_stat(char const *filename, char const *format)
{
struct stat statbuf;
#if ENABLE_SELINUX
security_context_t scontext = NULL;
if (flags & OPT_SELINUX) {
if ((flags & OPT_DEREFERENCE ? lgetfilecon(filename, scontext):
getfilecon(filename, scontext))< 0) {
bb_perror_msg (filename);
return 0;
}
}
#endif
if ((flags & OPT_DEREFERENCE ? stat : lstat) (filename, &statbuf) != 0) {
bb_perror_msg("cannot stat '%s'", filename);
return 0;
@ -425,6 +508,7 @@ static int do_stat(char const *filename, char const *format)
#ifdef CONFIG_FEATURE_STAT_FORMAT
if (format == NULL) {
#ifndef ENABLE_SELINUX
if (flags & OPT_TERSE) {
format = "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o";
} else {
@ -445,11 +529,49 @@ static int do_stat(char const *filename, char const *format)
"Access: %x\n" "Modify: %y\n" "Change: %z\n";
}
}
}
print_it(format, filename, print_stat, &statbuf);
#else
if (flags & OPT_TERSE) {
format = (flags & OPT_SELINUX ?
"%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o %C\n":
"%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o\n");
} else {
if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode)) {
format = (flags & OPT_SELINUX ?
" File: \"%N\"\n"
" Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
"Device: %Dh/%dd\tInode: %-10i Links: %-5h"
" Device type: %t,%T\n"
"Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
" S_Context: %C\n"
"Access: %x\n" "Modify: %y\n" "Change: %z\n":
" File: \"%N\"\n"
" Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
"Device: %Dh/%dd\tInode: %-10i Links: %-5h"
" Device type: %t,%T\n"
"Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
"Access: %x\n" "Modify: %y\n" "Change: %z\n");
} else {
format = (flags & OPT_SELINUX ?
" File: \"%N\"\n"
" Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
"Device: %Dh/%dd\tInode: %-10i Links: %h\n"
"Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
"S_Context: %C\n"
"Access: %x\n" "Modify: %y\n" "Change: %z\n":
" File: \"%N\"\n"
" Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
"Device: %Dh/%dd\tInode: %-10i Links: %h\n"
"Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
"Access: %x\n" "Modify: %y\n" "Change: %z\n");
}
}
#endif
}
print_it(format, filename, print_stat, &statbuf USE_SELINUX(, scontext));
#else /* FEATURE_STAT_FORMAT */
if (flags & OPT_TERSE) {
printf("%s %ju %ju %lx %lu %lu %jx %ju %lu %lx %lx %lu %lu %lu %lu\n",
printf("%s %ju %ju %lx %lu %lu %jx %ju %lu %lx %lx %lu %lu %lu %lu"
SKIP_SELINUX("\n"),
filename,
(uintmax_t) (statbuf.st_size),
(uintmax_t) statbuf.st_blocks,
@ -466,6 +588,12 @@ static int do_stat(char const *filename, char const *format)
(unsigned long int) statbuf.st_ctime,
(unsigned long int) statbuf.st_blksize
);
#if ENABLE_SELINUX
if (flags & OPT_SELINUX)
printf(" %lc\n", *scontext);
else
putchar('\n');
#endif
} else {
char *linkname = NULL;
@ -499,19 +627,22 @@ static int do_stat(char const *filename, char const *format)
(unsigned long int) minor(statbuf.st_rdev));
else
putchar('\n');
printf("Access: (%04lo/%10.10s) Uid: (%5lu/%8s) Gid: (%5lu/%8s)\n"
"Access: %s\n" "Modify: %s\n" "Change: %s\n",
printf("Access: (%04lo/%10.10s) Uid: (%5lu/%8s) Gid: (%5lu/%8s)\n",
(unsigned long int) (statbuf.st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)),
bb_mode_string(statbuf.st_mode),
(unsigned long int) statbuf.st_uid,
(pw_ent != 0L) ? pw_ent->pw_name : "UNKNOWN",
(unsigned long int) statbuf.st_gid,
(gw_ent != 0L) ? gw_ent->gr_name : "UNKNOWN",
(gw_ent != 0L) ? gw_ent->gr_name : "UNKNOWN");
#if ENABLE_SELINUX
printf(" S_Context: %lc\n", *scontext);
#endif
printf("Access: %s\n" "Modify: %s\n" "Change: %s\n",
human_time(statbuf.st_atime),
human_time(statbuf.st_mtime),
human_time(statbuf.st_ctime));
}
#endif
#endif /* FEATURE_STAT_FORMAT */
return 1;
}
@ -524,6 +655,7 @@ int stat_main(int argc, char **argv)
int (*statfunc)(char const *, char const *) = do_stat;
flags = getopt32(argc, argv, "ftL"
USE_SELINUX("Z")
USE_FEATURE_STAT_FORMAT("c:", &format)
);
@ -532,6 +664,11 @@ int stat_main(int argc, char **argv)
if (argc == optind) /* files */
bb_show_usage();
#if ENABLE_SELINUX
if (flags & OPT_SELINUX) {
selinux_or_die();
}
#endif /* ENABLE_SELINUX */
for (i = optind; i < argc; ++i)
ok &= statfunc(argv[i], format);

2
include/applets.h
View File

@ -69,6 +69,7 @@ USE_CAL(APPLET(cal, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_CAT(APPLET(cat, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_CATV(APPLET(catv, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_CHATTR(APPLET(chattr, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_CHCON(APPLET(chcon, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_CHGRP(APPLET(chgrp, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_CHMOD(APPLET(chmod, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_CHOWN(APPLET(chown, _BB_DIR_BIN, _BB_SUID_NEVER))
@ -249,6 +250,7 @@ USE_ROUTE(APPLET(route, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_RPM(APPLET(rpm, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_RPM2CPIO(APPLET(rpm2cpio, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RUN_PARTS(APPLET_ODDNAME(run-parts, run_parts, _BB_DIR_BIN, _BB_SUID_NEVER, run_parts))
USE_RUNCON(APPLET(runcon, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RUNLEVEL(APPLET(runlevel, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_RUNSV(APPLET(runsv, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RUNSVDIR(APPLET(runsvdir, _BB_DIR_USR_BIN, _BB_SUID_NEVER))

8
include/libbb.h
View File

@ -742,7 +742,7 @@ void *md5_end(void *resbuf, md5_ctx_t *ctx);
uint32_t *crc32_filltable(int endian);
enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */
enum { /* DO NOT CHANGE THESE VALUES! cp.c, mv.c, install.c depend on them. */
FILEUTILS_PRESERVE_STATUS = 1,
FILEUTILS_DEREFERENCE = 2,
FILEUTILS_RECUR = 4,
@ -750,9 +750,13 @@ enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */
FILEUTILS_INTERACTIVE = 0x10,
FILEUTILS_MAKE_HARDLINK = 0x20,
FILEUTILS_MAKE_SOFTLINK = 0x40,
#if ENABLE_SELINUX
FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x80,
FILEUTILS_SET_SECURITY_CONTEXT = 0x100
#endif
};
#define FILEUTILS_CP_OPTSTR "pdRfils"
#define FILEUTILS_CP_OPTSTR "pdRfils" USE_SELINUX("c")
extern const char *applet_name;
extern const char BB_BANNER[];

70
include/usage.h
View File

@ -198,6 +198,24 @@
" -R Recursively list subdirectories\n" \
" -v Set the file's version/generation number"
#define chcon_trivial_usage \
"[OPTIONS] CONTEXT FILE...\n" \
" chcon [OPTIONS] [-u USER] [-r ROLE] [-l RANGE] [-t TYPE] FILE...\n" \
" chcon [OPTIONS] --reference=RFILE FILE...\n"
#define chcon_full_usage \
"Change the security context of each FILE to CONTEXT\n\n" \
" -c, --changes Like verbose but report only when a change is made\n" \
" -h, --no-dereference Affect symbolic links instead of any referenced file\n" \
" (available only on systems with lchown system call)\n" \
" -f, --silent, --quiet Suppress most error messages\n" \
" --reference=RFILE Use RFILE's group instead of using a CONTEXT value\n" \
" -u, --user=USER Set user USER in the target security context\n" \
" -r, --role=ROLE Set role ROLE in the target security context\n" \
" -t, --type=TYPE Set type TYPE in the target security context\n" \
" -l, --range=RANGE Set range RANGE in the target security context\n" \
" -R, --recursive Recurse subdirs\n" \
" -v, --verbose Verbose mode" \
#define chgrp_trivial_usage \
"[-Rh"USE_DESKTOP("cvf")"]... GROUP FILE..."
#define chgrp_full_usage \
@ -404,6 +422,9 @@
"Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY" \
"\n\nOptions:\n" \
" -a Same as -dpR\n" \
USE_SELINUX( \
" -c Preserves security context\n" \
) \
" -d,-P Preserve links\n" \
" -H,-L Dereference all symlinks (implied by default)\n" \
" -p Preserve file attributes if possible\n" \
@ -1321,7 +1342,8 @@
"Print information for USERNAME or the current user" \
"\n\nOptions:\n" \
USE_SELINUX( \
" -c Prints only the security context\n") \
" -Z prints only the security context\n" \
) \
" -g Prints only the group ID\n" \
" -u Prints only the user ID\n" \
" -n Print a name instead of a number\n" \
@ -1540,7 +1562,10 @@
" -m Set permission modes\n" \
" -o Set ownership\n" \
" -p Preserve date\n" \
" -s Strip symbol tables"
" -s Strip symbol tables" \
USE_SELINUX( \
"\n -Z Set security context of copy" \
)
#define ip_trivial_usage \
"[OPTIONS] {address | link | route | tunnel | rule} {COMMAND}"
@ -1850,7 +1875,9 @@
USE_SELINUX( \
"\n -k Print security context") \
USE_SELINUX( \
"\n -K Print security context in long format")
"\n -K Print security context in long format") \
USE_SELINUX( \
"\n -Z Print security context and permission")
#define lsattr_trivial_usage \
"[-Radlv] [files...]"
@ -1995,7 +2022,11 @@
"Create the DIRECTORY(ies) if they do not already exist" \
"\n\nOptions:\n" \
" -m Set permission mode (as in chmod), not rwxrwxrwx - umask\n" \
" -p No error if existing, make parent directories as needed"
" -p No error if existing, make parent directories as needed" \
USE_SELINUX( \
"\n -Z Set security context" \
)
#define mkdir_example_usage \
"$ mkdir /tmp/foo\n" \
"$ mkdir /tmp/foo\n" \
@ -2040,7 +2071,10 @@
#define mkfifo_full_usage \
"Create a named pipe (identical to 'mknod name p')" \
"\n\nOptions:\n" \
" -m Create the pipe using the specified mode (default a=rw)"
" -m Create the pipe using the specified mode (default a=rw)" \
USE_SELINUX( \
"\n -Z Set security context" \
)
#define mkfs_minix_trivial_usage \
"[-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]"
@ -2062,7 +2096,11 @@
"\n\nTYPEs include:\n" \
" b: Make a block (buffered) device\n" \
" c or u: Make a character (un-buffered) device\n" \
" p: Make a named pipe. MAJOR and MINOR are ignored for named pipes"
" p: Make a named pipe. MAJOR and MINOR are ignored for named pipes" \
USE_SELINUX( \
"\n -Z Set security context" \
)
#define mknod_example_usage \
"$ mknod /dev/fd0 b 2 0\n" \
"$ mknod -m 644 /tmp/pipe p\n"
@ -2698,6 +2736,20 @@
#define rpm2cpio_full_usage \
"Output a cpio archive of the rpm file"
#define runcon_trivial_usage \
"[-c] [-u USER] [-r ROLE] [-t TYPE] [-l RANGE] COMMAND [args]\n" \
" runcon CONTEXT COMMAND [args]"
#define runcon_full_usage \
"runcon [-c] [-u USER] [-r ROLE] [-t TYPE] [-l RANGE] COMMAND [args]\n" \
"runcon CONTEXT COMMAND [args]\n" \
"Run a program in a different security context\n\n" \
" CONTEXT Complete security context\n" \
" -c, --compute Compute process transition context before modifying\n" \
" -t, --type=TYPE Type (for same role as parent)\n" \
" -u, --user=USER User identity\n" \
" -r, --role=ROLE Role\n" \
" -l, --range=RNG Levelrange" \
#define run_parts_trivial_usage \
"[-t] [-a ARG] [-u MASK] DIRECTORY"
#define run_parts_full_usage \
@ -2924,6 +2976,9 @@
" -f Display filesystem status\n" \
" -L,-l Dereference links\n" \
" -t Display info in terse form" \
USE_SELINUX( \
"\n -Z Print security context" \
) \
USE_FEATURE_STAT_FORMAT( \
"\n\nValid format sequences for files:\n" \
" %a Access rights in octal\n" \
@ -2958,6 +3013,9 @@
" %c Total file nodes in file system\n" \
" %d Free file nodes in file system\n" \
" %f Free blocks in file system\n" \
USE_SELINUX( \
" %C Security context in SELinux\n" \
) \
" %i File System ID in hex\n" \
" %l Maximum length of filenames\n" \
" %n File name\n" \

40
libbb/copy_file.c
View File

@ -3,6 +3,7 @@
* Mini copy_file implementation for busybox
*
* Copyright (C) 2001 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
* SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
@ -62,6 +63,26 @@ int copy_file(const char *source, const char *dest, int flags)
dest_exists = 1;
}
#if ENABLE_SELINUX
if ((flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT) && is_selinux_enabled() > 0) {
security_context_t con;
if (lgetfilecon(source, &con) >= 0) {
if (setfscreatecon(con) < 0) {
bb_perror_msg("cannot set setfscreatecon %s", con);
freecon(con);
return -1;
}
} else {
if (errno == ENOTSUP || errno == ENODATA) {
setfscreatecon(NULL);
} else {
bb_perror_msg("cannot lgetfilecon %s", source);
return -1;
}
}
}
#endif
if (S_ISDIR(source_stat.st_mode)) {
DIR *dp;
struct dirent *d;
@ -204,6 +225,25 @@ int copy_file(const char *source, const char *dest, int flags)
}
}
#if ENABLE_SELINUX
if (((flags & FILEUTILS_PRESERVE_SECURITY_CONTEXT)
|| (flags & FILEUTILS_SET_SECURITY_CONTEXT))
&& is_selinux_enabled() > 0) {
security_context_t con;
if (getfscreatecon(&con) == -1) {
bb_perror_msg("getfscreatecon");
return -1;
}
if (con) {
if(setfilecon(dest, con) == -1) {
bb_perror_msg("setfilecon:%s,%s", dest, con);
freecon(con);
return -1;
}
freecon(con);
}
}
#endif
if (bb_copyfd_eof(src_fd, dst_fd) == -1)
status = -1;
if (close(dst_fd) < 0) {

28
selinux/Config.in
View File

@ -6,6 +6,20 @@
menu "Selinux Utilities"
depends on SELINUX
config CHCON
bool "chcon"
default n
depends on SELINUX
help
Enable support to change the security context of file.
config FEATURE_CHCON_LONG_OPTIONS
bool "Enable long options"
default y
depends on CHCON && GETOPT_LONG
help
Support long options for the chcon applet.
config GETENFORCE
bool "getenforce"
default n
@ -28,6 +42,20 @@ config MATCHPATHCON
Enable support to get default security context of the
specified path from the file contexts configuration.
config RUNCON
bool "runcon"
default n
depends on SELINUX
help
Enable support to run command in speficied security context.
config FEATURE_RUNCON_LONG_OPTIONS
bool "Enable long options"
default y
depends on RUNCON && GETOPT_LONG
help
Support long options for the runcon applet.
config SELINUXENABLED
bool "selinuxenabled"
default n

2
selinux/Kbuild
View File

@ -6,8 +6,10 @@
# Licensed under the GPL v2, see the file LICENSE in this tarball.
lib-y:=
lib-$(CONFIG_CHCON) += chcon.o
lib-$(CONFIG_GETENFORCE) += getenforce.o
lib-$(CONFIG_GETSEBOOL) += getsebool.o
lib-$(CONFIG_MATCHPATHCON) += matchpathcon.o
lib-$(CONFIG_RUNCON) += runcon.o
lib-$(CONFIG_SELINUXENABLED) += selinuxenabled.o
lib-$(CONFIG_SETENFORCE) += setenforce.o