diff options
| author | Jeff Layton <jlayton@redhat.com> | 2012-10-10 16:43:13 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-12 20:15:09 -0400 |
| commit | adb5c2473d3f91526c79db972aafb20a56d3fbb3 (patch) | |
| tree | f0427a11a91af2f5a5d0037ce52c32633019120b /kernel | |
| parent | 669abf4e5539c8aa48bf28c965be05c0a7b58a27 (diff) | |
audit: make audit_inode take struct filename
Keep a pointer to the audit_names "slot" in struct filename.
Have all of the audit_inode callers pass a struct filename ponter to
audit_inode instead of a string pointer. If the aname field is already
populated, then we can skip walking the list altogether and just use it
directly.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/auditsc.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 521163a5d65..2f186ed80c4 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -2076,6 +2076,7 @@ void __audit_getname(struct filename *name) n->name = name; n->name_len = AUDIT_NAME_FULL; n->name_put = true; + name->aname = n; if (!context->pwd.dentry) get_fs_pwd(current->fs, &context->pwd); @@ -2166,7 +2167,7 @@ static void audit_copy_inode(struct audit_names *name, const struct dentry *dent * @dentry: dentry being audited * @parent: does this dentry represent the parent? */ -void __audit_inode(const char *name, const struct dentry *dentry, +void __audit_inode(struct filename *name, const struct dentry *dentry, unsigned int parent) { struct audit_context *context = current->audit_context; @@ -2179,9 +2180,29 @@ void __audit_inode(const char *name, const struct dentry *dentry, if (!name) goto out_alloc; +#if AUDIT_DEBUG + /* The struct filename _must_ have a populated ->name */ + BUG_ON(!name->name); +#endif + /* + * If we have a pointer to an audit_names entry already, then we can + * just use it directly if the type is correct. + */ + n = name->aname; + if (n) { + if (parent) { + if (n->type == AUDIT_TYPE_PARENT || + n->type == AUDIT_TYPE_UNKNOWN) + goto out; + } else { + if (n->type != AUDIT_TYPE_PARENT) + goto out; + } + } + list_for_each_entry_reverse(n, &context->names_list, list) { /* does the name pointer match? */ - if (!n->name || n->name->name != name) + if (!n->name || n->name->name != name->name) continue; /* match the correct record type */ |