Re: [PATCH ghak90 V5 06/10] audit: add support for non-syscall auxiliary records

Standalone audit records have the timestamp and serial number generated on the fly and as such are unique, making them standalone. This new function audit_alloc_local() generates a local audit context that will be used only for a standalone record and its auxiliary record(s). The context is discarded immediately after the local associated records are produced. Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com&gt; Acked-by: Serge Hallyn <serge(a)hallyn.com&gt; --- include/linux/audit.h | 8 ++++++++ kernel/audit.h | 1 + kernel/auditsc.c | 35 ++++++++++++++++++++++++++++++----- 3 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/include/linux/audit.h b/include/linux/audit.h index ebd6625ca80e..6db5aba7cc01 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -285,6 +285,8 @@ static inline void audit_log_contid(struct audit_context *context, u64 contid) /* These are defined in auditsc.c */ /* Public API */ +extern struct audit_context *audit_alloc_local(gfp_t gfpflags); +extern void audit_free_context(struct audit_context *context); extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3); extern void __audit_syscall_exit(int ret_success, long ret_value); @@ -512,6 +514,12 @@ static inline void audit_fanotify(unsigned int response) extern int audit_n_rules; extern int audit_signals; #else /* CONFIG_AUDITSYSCALL */ +static inline struct audit_context *audit_alloc_local(gfp_t gfpflags) +{ + return NULL; +} +static inline void audit_free_context(struct audit_context *context) +{ } static inline void audit_syscall_entry(int major, unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3) diff --git a/kernel/audit.h b/kernel/audit.h index c5ac6436317e..2a1a8b8a8019 100644 --- a/kernel/audit.h +++ b/kernel/audit.h @@ -111,6 +111,7 @@ struct audit_proctitle { struct audit_context { int dummy; /* must be the first element */ int in_syscall; /* 1 if task is in a syscall */ + bool local; /* local context needed */

enum audit_state state, current_state; unsigned int serial; /* serial number for record */ int major; /* syscall number */