| 797 |
I was using PAGE_SIZE (4096 in many environments) |
I was using PAGE_SIZE (4096 in many environments) |
| 798 |
as the max length of any string data. |
as the max length of any string data. |
| 799 |
But for environments that have larger PAGE_SIZE, |
But for environments that have larger PAGE_SIZE, |
| 800 |
doing memset(ptr, 0, PAGE_SIZE) everytime is too wasteful. |
doing memset(ptr, 0, PAGE_SIZE) every time is too wasteful. |
| 801 |
|
|
| 802 |
Fix 2007/01/29 |
Fix 2007/01/29 |
| 803 |
|
|
| 2744 |
printing the additional '\0', ccs_flush() was returning without updating |
printing the additional '\0', ccs_flush() was returning without updating |
| 2745 |
head->r.w[0]. As a result, ccs_flush() forever reprints already printed |
head->r.w[0]. As a result, ccs_flush() forever reprints already printed |
| 2746 |
string data. |
string data. |
| 2747 |
|
|
| 2748 |
|
Fix 2011/03/01 |
| 2749 |
|
|
| 2750 |
|
@ Run garbage collector without waiting for /proc/ccs/ users. |
| 2751 |
|
|
| 2752 |
|
Currently TOMOYO holds SRCU lock upon open() and releases it upon close() |
| 2753 |
|
because list elements stored in the "struct ccs_io_buffer" instances are |
| 2754 |
|
accessed until close() is called. However, such SRCU usage causes lockdep |
| 2755 |
|
to complain about leaving the kernel with SRCU lock held. Therefore, |
| 2756 |
|
I changed to hold/release SRCU upon each read()/write() by selectively |
| 2757 |
|
deferring kfree() by keeping track of the "struct ccs_io_buffer" |
| 2758 |
|
instances. |
| 2759 |
|
|
| 2760 |
|
Fix 2011/03/05 |
| 2761 |
|
|
| 2762 |
|
@ Support built-in policy configuration. |
| 2763 |
|
|
| 2764 |
|
To be able to start using enforcing mode from the early stage of boot |
| 2765 |
|
sequence, I added support for built-in policy configuration and |
| 2766 |
|
activating access control without calling external policy loader program. |
| 2767 |
|
|
| 2768 |
|
This will be useful for systems where operations which can lead to the |
| 2769 |
|
hijacking of the boot sequence are needed before loading the policy. |
| 2770 |
|
For example, you can activate immediately after loading the fixed part of |
| 2771 |
|
policy which will allow only operations needed for mounting a partition |
| 2772 |
|
which contains the variant part of policy and verifying (e.g. running GPG |
| 2773 |
|
check) and loading the variant part of policy. Since you can start using |
| 2774 |
|
enforcing mode from the beginning, you can reduce the possibility of |
| 2775 |
|
hijacking the boot sequence. |
| 2776 |
|
|
| 2777 |
|
Fix 2011/03/10 |
| 2778 |
|
|
| 2779 |
|
@ Remove /proc/ccs/meminfo interface. |
| 2780 |
|
|
| 2781 |
|
Please use /proc/ccs/stat interface instead. |
| 2782 |
|
|
| 2783 |
|
Fix 2011/03/15 |
| 2784 |
|
|
| 2785 |
|
@ Pack policy when printing via /proc/ccs/ interface. |
| 2786 |
|
|
| 2787 |
|
The kernel side is ready for accepting packed input like |
| 2788 |
|
|
| 2789 |
|
file read/write/execute /path/to/file |
| 2790 |
|
|
| 2791 |
|
but was using unpacked output like |
| 2792 |
|
|
| 2793 |
|
file read /path/to/file |
| 2794 |
|
file write /path/to/file |
| 2795 |
|
file execute /path/to/file |
| 2796 |
|
|
| 2797 |
|
because most of userland tools were not ready for accepting packed input. |
| 2798 |
|
|
| 2799 |
|
The advantages of using packed policy are that it makes policy files |
| 2800 |
|
smaller and it speeds up loading/saving policy files. |
| 2801 |
|
|
| 2802 |
|
Since most of userland tools are ready for accepting packed input by now, |
| 2803 |
|
I changed to use packed policy for both input and output. |
| 2804 |
|
|
| 2805 |
|
Fix 2011/03/31 |
| 2806 |
|
|
| 2807 |
|
@ Fix conditional policy parsing. |
| 2808 |
|
|
| 2809 |
|
Since exec.realpath= and symlink.target= accept path_group, |
| 2810 |
|
symlink.target="@foo" was by error parsed as symlink.target=@foo . |
| 2811 |
|
|
| 2812 |
|
@ Serialize updating profile's comment line. |
| 2813 |
|
|
| 2814 |
|
We need to serialize when updating COMMENT= line in /proc/ccs/profile . |
| 2815 |
|
|
| 2816 |
|
Version 1.8.1 2011/04/01 Usability enhancement with "Zettai, Daijoubudayo" release! |
| 2817 |
|
|
| 2818 |
|
Fix 2011/04/03 |
| 2819 |
|
|
| 2820 |
|
@ Fix fcntl(F_SETFL, O_APPEND) handling. |
| 2821 |
|
|
| 2822 |
|
Since 1.8.0, TOMOYO was by error checking "file write" permission rather |
| 2823 |
|
than "file append" permission when changing file's writing mode from |
| 2824 |
|
"overwriting" to "append". |
| 2825 |
|
|
| 2826 |
|
This error should impact little (except CentOS 6.0 kernels) because once |
| 2827 |
|
a file was opened for "overwriting" mode, changing that file to "append" |
| 2828 |
|
mode cannot undo overwriting the file. Regarding CentOS 6.0 kernels, |
| 2829 |
|
due to different ACC_MODE definition, TOMOYO was by error needlessly |
| 2830 |
|
checking "file read" permission when fcntl() was requested. |
| 2831 |
|
|
| 2832 |
|
Fix 2011/04/20 |
| 2833 |
|
|
| 2834 |
|
@ Remove unused "struct inode *" parameter from hooks. |
| 2835 |
|
|
| 2836 |
|
Since pre-vfs functions were removed on 2010/09/18, "struct inode *" |
| 2837 |
|
parameter which was used for checking parent directory's DAC permission |
| 2838 |
|
is no longer used. |
| 2839 |
|
|
| 2840 |
|
Note that "struct ccsecurity_operations ccsecurity_ops" has changed. |
| 2841 |
|
Loadable kernel modules that depends on it need to be rebuilt. |
| 2842 |
|
|
| 2843 |
|
Fix 2011/05/05 |
| 2844 |
|
|
| 2845 |
|
@ Fix wrong profile number in audit logs for "misc env" permission. |
| 2846 |
|
|
| 2847 |
|
Profile number used for "file execute" permission was by error reused |
| 2848 |
|
when generating audit logs for "misc env" permission. |
| 2849 |
|
|
| 2850 |
|
Fix 2011/05/11 |
| 2851 |
|
|
| 2852 |
|
@ Fix wrong domainname validation. |
| 2853 |
|
|
| 2854 |
|
"<kernel>" + "/foo/\" + "/bar" was by error checked when |
| 2855 |
|
"<kernel> /foo/\* /bar" was given. As a result, legal domainnames like |
| 2856 |
|
"<kernel> /foo/\* /bar" are rejected. |
| 2857 |
|
|
| 2858 |
|
Fix 2011/06/06 |
| 2859 |
|
|
| 2860 |
|
@ Add policy namespace support. |
| 2861 |
|
|
| 2862 |
|
To be able to use TOMOYO in LXC environments, I introduced policy |
| 2863 |
|
namespace. Each policy namespace has its own set of domain policy, |
| 2864 |
|
exception policy and profiles, which are all independent of other |
| 2865 |
|
namespaces. |
| 2866 |
|
|
| 2867 |
|
@ Remove CONFIG_CCSECURITY_BUILTIN_INITIALIZERS option. |
| 2868 |
|
|
| 2869 |
|
From now on, exception policy and manager need to be able to handle |
| 2870 |
|
policy namespace (which is a <$namespace> prefix added to each line). |
| 2871 |
|
Thus, space-separated list for CONFIG_CCSECURITY_BUILTIN_INITIALIZERS is |
| 2872 |
|
no longer suitable for handling policy namespace. |
| 2873 |
|
|
| 2874 |
|
Fix 2011/06/10 |
| 2875 |
|
|
| 2876 |
|
@ Allow specifying trigger for activation. |
| 2877 |
|
|
| 2878 |
|
To be able to use TOMOYO under systemd environments where init= parameter |
| 2879 |
|
is used, I changed to allow overriding the trigger for calling external |
| 2880 |
|
policy loader and activating MAC via kernel command line options. |
| 2881 |
|
|
| 2882 |
|
Fix 2011/06/14 |
| 2883 |
|
|
| 2884 |
|
@ Remove unused "struct inode *" parameter from ccs-patch-\*.diff . |
| 2885 |
|
|
| 2886 |
|
To follow changes I made on 2011/04/20, I removed "struct inode *" from |
| 2887 |
|
ccs_mknod_permission(), ccs_mkdir_permission(), ccs_rmdir_permission(), |
| 2888 |
|
ccs_unlink_permission(), ccs_symlink_permission(), ccs_link_permission(), |
| 2889 |
|
ccs_rename_permission() that are called from fs/namei.c |
| 2890 |
|
net/unix/af_unix.c include/linux/security.c security/security.c . |
| 2891 |
|
If you have your own ccs-patch-*.diff , please update accordingly. |
| 2892 |
|
|
| 2893 |
|
Version 1.8.2 2011/06/20 Usability enhancement release. |
| 2894 |
|
|
| 2895 |
|
Fix 2011/07/07 |
| 2896 |
|
|
| 2897 |
|
@ Remove /proc/ccs/.domain_status interface. |
| 2898 |
|
|
| 2899 |
|
Writing to /proc/ccs/.domain_status can be emulated by |
| 2900 |
|
|
| 2901 |
|
( echo "select " $domainname; echo "use_profile " $profile ) | |
| 2902 |
|
/usr/sbin/ccs-loadpolicy -d |
| 2903 |
|
|
| 2904 |
|
and reading from /proc/ccs/.domain_status can be emulated by |
| 2905 |
|
|
| 2906 |
|
grep -A 1 '^<' /proc/ccs/domain_policy | |
| 2907 |
|
awk ' { if ( domainname == "" ) { if ( substr($1, 1, 1) == "<" ) |
| 2908 |
|
domainname = $0; } else if ( $1 == "use_profile" ) { |
| 2909 |
|
print $2 " " domainname; domainname = ""; } } ; ' |
| 2910 |
|
|
| 2911 |
|
. Since this interface is used by only /usr/sbin/ccs-setprofile , |
| 2912 |
|
remove this interface by updating /usr/sbin/ccs-setprofile . |
| 2913 |
|
|
| 2914 |
|
Fix 2011/07/09 |
| 2915 |
|
|
| 2916 |
|
@ Fix /proc/ccs/stat parser. |
| 2917 |
|
|
| 2918 |
|
For optimization, I changed to use simple_strtoul() rather than sscanf() |
| 2919 |
|
in ccs_write_stat(). But it caused parsing failure if space is inserted |
| 2920 |
|
before value (e.g. "Memory used by policy: $value"). |
| 2921 |
|
|
| 2922 |
|
Fix 2011/07/13 |
| 2923 |
|
|
| 2924 |
|
@ Accept "::" notation for IPv6 address. |
| 2925 |
|
|
| 2926 |
|
In order to add network access restriction to TOMOYO 2.4, I backported |
| 2927 |
|
routines for parsing/printing IPv4/IPv6 address from kernel 3.0 into |
| 2928 |
|
TOMOYO 1.8.2. |
| 2929 |
|
Now, IPv6 address accepts "::1" instead of "0:0:0:0:0:0:0:1". |
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