diff options
Diffstat (limited to 'kernel/auditsc.c')
| -rw-r--r-- | kernel/auditsc.c | 41 |
1 files changed, 29 insertions, 12 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 19b232f86d7..b87b28947ac 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -2135,13 +2135,13 @@ static void audit_copy_inode(struct audit_names *name, const struct dentry *dent } /** - * audit_inode - store the inode and device from a lookup + * __audit_inode - store the inode and device from a lookup * @name: name being audited * @dentry: dentry being audited - * - * Called from fs/namei.c:path_lookup(). + * @parent: does this dentry represent the parent? */ -void __audit_inode(const char *name, const struct dentry *dentry) +void __audit_inode(const char *name, const struct dentry *dentry, + unsigned int parent) { struct audit_context *context = current->audit_context; const struct inode *inode = dentry->d_inode; @@ -2154,19 +2154,38 @@ void __audit_inode(const char *name, const struct dentry *dentry) goto out_alloc; list_for_each_entry_reverse(n, &context->names_list, list) { - if (n->name == name) - goto out; + /* does the name pointer match? */ + if (n->name != name) + continue; + + /* match the correct record type */ + if (parent) { + if (n->type == AUDIT_TYPE_PARENT || + n->type == AUDIT_TYPE_UNKNOWN) + goto out; + } else { + if (n->type != AUDIT_TYPE_PARENT) + goto out; + } } out_alloc: - /* unable to find the name from a previous getname() */ + /* unable to find the name from a previous getname(). Allocate a new + * anonymous entry. + */ n = audit_alloc_name(context, AUDIT_TYPE_NORMAL); if (!n) return; out: + if (parent) { + n->name_len = n->name ? parent_len(n->name) : AUDIT_NAME_FULL; + n->type = AUDIT_TYPE_PARENT; + } else { + n->name_len = AUDIT_NAME_FULL; + n->type = AUDIT_TYPE_NORMAL; + } handle_path(dentry); audit_copy_inode(n, dentry, inode); - n->type = AUDIT_TYPE_NORMAL; } /** @@ -2190,7 +2209,6 @@ void __audit_inode_child(const struct inode *parent, const struct inode *inode = dentry->d_inode; const char *dname = dentry->d_name.name; struct audit_names *n; - int dirlen = 0; if (!context->in_syscall) return; @@ -2204,8 +2222,7 @@ void __audit_inode_child(const struct inode *parent, continue; if (n->ino == parent->i_ino && - !audit_compare_dname_path(dname, n->name, &dirlen)) { - n->name_len = dirlen; /* update parent data in place */ + !audit_compare_dname_path(dname, n->name, NULL)) { found_parent = n->name; goto add_names; } @@ -2218,7 +2235,7 @@ void __audit_inode_child(const struct inode *parent, /* strcmp() is the more likely scenario */ if (!strcmp(dname, n->name) || - !audit_compare_dname_path(dname, n->name, &dirlen)) { + !audit_compare_dname_path(dname, n->name, NULL)) { if (inode) audit_copy_inode(n, dentry, inode); else |