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| author | Stephen Smalley <stephen.smalley.work@gmail.com> | 2020-06-17 15:22:16 -0400 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2020-06-23 20:48:15 -0400 |
| commit | 382c2b5d23b4245f1818f69286db334355488dc4 (patch) | |
| tree | b3d8df33b665014b7d3bed74c12739168da1dd3d /scripts/selinux | |
| parent | c8e222616c7e98305bdc861db3ccac520bc29921 (diff) | |
| download | lwn-382c2b5d23b4245f1818f69286db334355488dc4.tar.gz lwn-382c2b5d23b4245f1818f69286db334355488dc4.zip | |
scripts/selinux/mdp: fix initial SID handling
commit e3e0b582c321 ("selinux: remove unused initial SIDs and improve
handling") broke scripts/selinux/mdp since the unused initial SID names
were removed and the corresponding generation of policy initial SID
definitions by mdp was not updated accordingly. Fix it. With latest
upstream checkpolicy it is no longer necessary to include the SID context
definitions for the unused initial SIDs but retain them for compatibility
with older checkpolicy.
Fixes: e3e0b582c321 ("selinux: remove unused initial SIDs and improve handling")
Signed-off-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'scripts/selinux')
| -rw-r--r-- | scripts/selinux/mdp/mdp.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/scripts/selinux/mdp/mdp.c b/scripts/selinux/mdp/mdp.c index 576d11a60417..6ceb88eb9b59 100644 --- a/scripts/selinux/mdp/mdp.c +++ b/scripts/selinux/mdp/mdp.c @@ -67,8 +67,14 @@ int main(int argc, char *argv[]) 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++) - fprintf(fout, "sid %s\n", initial_sid_to_string[i]); + for (i = 1; i < initial_sid_to_string_len; i++) { + const char *name = initial_sid_to_string[i]; + + if (name) + fprintf(fout, "sid %s\n", name); + else + fprintf(fout, "sid unused%d\n", i); + } fprintf(fout, "\n"); /* print out the class permissions */ @@ -126,9 +132,16 @@ int main(int argc, char *argv[]) #define OBJUSERROLETYPE "user_u:object_r:base_t" /* default sids */ - for (i = 1; i < initial_sid_to_string_len; i++) - fprintf(fout, "sid %s " SUBJUSERROLETYPE "%s\n", - initial_sid_to_string[i], mls ? ":" SYSTEMLOW : ""); + for (i = 1; i < initial_sid_to_string_len; i++) { + const char *name = initial_sid_to_string[i]; + + if (name) + fprintf(fout, "sid %s ", name); + else + fprintf(fout, "sid unused%d\n", i); + fprintf(fout, SUBJUSERROLETYPE "%s\n", + mls ? ":" SYSTEMLOW : ""); + } fprintf(fout, "\n"); #define FS_USE(behavior, fstype) \ |