diff options
| author | Richard Haines <richard_c_haines@btinternet.com> | 2015-09-30 16:29:20 +0100 |
|---|---|---|
| committer | Stephen Smalley <sds@tycho.nsa.gov> | 2015-10-13 17:13:24 -0400 |
| commit | e40bbea95f555fe9708cbbc39895bd67a8ac6c48 (patch) | |
| tree | 04c5edad51f2f00845887003700c7ec79927379d /libselinux/src/label_android_property.c | |
| parent | c9c1f273708777c8923268cf61798ed0dc2ffded (diff) | |
| download | android_external_selinux-e40bbea95f555fe9708cbbc39895bd67a8ac6c48.tar.gz android_external_selinux-e40bbea95f555fe9708cbbc39895bd67a8ac6c48.tar.bz2 android_external_selinux-e40bbea95f555fe9708cbbc39895bd67a8ac6c48.zip | |
libselinux: Add selabel_digest function
selabel_digest(3) if enabled by the SELABEL_OPT_DIGEST option during
selabel_open(3) will return an SHA1 digest of the spec files, plus
a list of the specfiles used to calculate the digest. There is a
test utility supplied that will demonstrate the functionality.
The use case for selabel_digest(3) is to implement an selinux_restorecon
function based on the Android version that writes a hash of the
file_contexts files to an extended attribute to enhance performance
(see external/libselinux/src/android.c selinux_android_restorecon()).
Signed-off-by: Richard Haines <richard_c_haines@btinternet.com>
Diffstat (limited to 'libselinux/src/label_android_property.c')
| -rw-r--r-- | libselinux/src/label_android_property.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libselinux/src/label_android_property.c b/libselinux/src/label_android_property.c index af06c4a6..b8fab790 100644 --- a/libselinux/src/label_android_property.c +++ b/libselinux/src/label_android_property.c @@ -199,7 +199,12 @@ static int init(struct selabel_handle *rec, const struct selinux_opt *opts, qsort(data->spec_arr, data->nspec, sizeof(struct spec), cmp); - status = 0; + status = digest_add_specfile(rec->digest, fp, NULL, sb.st_size, path); + if (status) + goto finish; + + status = digest_gen_hash(rec->digest); + finish: fclose(fp); return status; |