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| author | Eric Paris <eparis@redhat.com> | 2011-04-28 15:11:21 -0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2011-04-28 15:15:53 -0400 |
| commit | 2463c26d50adc282d19317013ba0ff473823ca47 (patch) | |
| tree | e92438150bb380c0dc0867b00f1ae89f73646b2a /security/selinux/ss/services.c | |
| parent | 3f058ef7787e1b48720622346de9a5317aeb749a (diff) | |
| download | lwn-2463c26d50adc282d19317013ba0ff473823ca47.tar.gz lwn-2463c26d50adc282d19317013ba0ff473823ca47.zip | |
SELinux: put name based create rules in a hashtable
To shorten the list we need to run if filename trans rules exist for the type
of the given parent directory I put them in a hashtable. Given the policy we
are expecting to use in Fedora this takes the worst case list run from about
5,000 entries to 17.
Signed-off-by: Eric Paris <eparis@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/ss/services.c')
| -rw-r--r-- | security/selinux/ss/services.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index 6a22eaebf3b7..e11b4b038f4a 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -1362,7 +1362,8 @@ static void filename_compute_type(struct policydb *p, struct context *newcontext u32 stype, u32 ttype, u16 tclass, const char *objname) { - struct filename_trans *ft; + struct filename_trans ft; + struct filename_trans_datum *otype; /* * Most filename trans rules are going to live in specific directories @@ -1372,15 +1373,14 @@ static void filename_compute_type(struct policydb *p, struct context *newcontext if (!ebitmap_get_bit(&p->filename_trans_ttypes, ttype)) return; - for (ft = p->filename_trans; ft; ft = ft->next) { - if (ft->stype == stype && - ft->ttype == ttype && - ft->tclass == tclass && - !strcmp(ft->name, objname)) { - newcontext->type = ft->otype; - return; - } - } + ft.stype = stype; + ft.ttype = ttype; + ft.tclass = tclass; + ft.name = objname; + + otype = hashtab_search(p->filename_trans, &ft); + if (otype) + newcontext->type = otype->otype; } static int security_compute_sid(u32 ssid, |