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audit.h: replace defines with C stubs 

Replace the #defines used when CONFIG_AUDIT or CONFIG_AUDIT_SYSCALLS are
disabled so we get type checking during those builds.

Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kees Cook 2012-10-04 17:11:11 -07:00 committed by Linus Torvalds
parent ecefbd94b8
commit 9321d526dd
1 changed files with 153 additions and 53 deletions
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204
include/linux/audit.h
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@ -528,8 +528,17 @@ extern unsigned int audit_serial(void);
extern int auditsc_get_stamp(struct audit_context *ctx, extern int auditsc_get_stamp(struct audit_context *ctx,
struct timespec *t, unsigned int *serial); struct timespec *t, unsigned int *serial);
extern int audit_set_loginuid(kuid_t loginuid); extern int audit_set_loginuid(kuid_t loginuid);
#define audit_get_loginuid(t) ((t)->loginuid)
#define audit_get_sessionid(t) ((t)->sessionid) static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
{
return tsk->loginuid;
}
static inline int audit_get_sessionid(struct task_struct *tsk)
{
return tsk->sessionid;
}
extern void audit_log_task_context(struct audit_buffer *ab); extern void audit_log_task_context(struct audit_buffer *ab);
extern void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk); extern void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk);
extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp); extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
@ -626,38 +635,101 @@ static inline void audit_mmap_fd(int fd, int flags)
extern int audit_n_rules; extern int audit_n_rules;
extern int audit_signals; extern int audit_signals;
#else /* CONFIG_AUDITSYSCALL */ #else /* CONFIG_AUDITSYSCALL */
#define audit_alloc(t) ({ 0; }) static inline int audit_alloc(struct task_struct *task)
#define audit_free(t) do { ; } while (0) {
#define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0) return 0;
#define audit_syscall_exit(r) do { ; } while (0) }
#define audit_dummy_context() 1 static inline void audit_free(struct task_struct *task)
#define audit_getname(n) do { ; } while (0) { }
#define audit_putname(n) do { ; } while (0) static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
#define __audit_inode(n,d) do { ; } while (0) unsigned long a1, unsigned long a2,
#define __audit_inode_child(i,p) do { ; } while (0) unsigned long a3)
#define audit_inode(n,d) do { (void)(d); } while (0) { }
#define audit_inode_child(i,p) do { ; } while (0) static inline void audit_syscall_exit(void *pt_regs)
#define audit_core_dumps(i) do { ; } while (0) { }
#define audit_seccomp(i,s,c) do { ; } while (0) static inline int audit_dummy_context(void)
#define auditsc_get_stamp(c,t,s) (0) {
#define audit_get_loginuid(t) (INVALID_UID) return 1;
#define audit_get_sessionid(t) (-1) }
#define audit_log_task_context(b) do { ; } while (0) static inline void audit_getname(const char *name)
#define audit_log_task_info(b, t) do { ; } while (0) { }
#define audit_ipc_obj(i) ((void)0) static inline void audit_putname(const char *name)
#define audit_ipc_set_perm(q,u,g,m) ((void)0) { }
#define audit_bprm(p) ({ 0; }) static inline void __audit_inode(const char *name, const struct dentry *dentry)
#define audit_socketcall(n,a) ((void)0) { }
#define audit_fd_pair(n,a) ((void)0) static inline void __audit_inode_child(const struct dentry *dentry,
#define audit_sockaddr(len, addr) ({ 0; }) const struct inode *parent)
#define audit_mq_open(o,m,a) ((void)0) { }
#define audit_mq_sendrecv(d,l,p,t) ((void)0) static inline void audit_inode(const char *name, const struct dentry *dentry)
#define audit_mq_notify(d,n) ((void)0) { }
#define audit_mq_getsetattr(d,s) ((void)0) static inline void audit_inode_child(const struct dentry *dentry,
#define audit_log_bprm_fcaps(b, ncr, ocr) ({ 0; }) const struct inode *parent)
#define audit_log_capset(pid, ncr, ocr) ((void)0) { }
#define audit_mmap_fd(fd, flags) ((void)0) static inline void audit_core_dumps(long signr)
#define audit_ptrace(t) ((void)0) { }
static inline void __audit_seccomp(unsigned long syscall, long signr, int code)
{ }
static inline void audit_seccomp(unsigned long syscall, long signr, int code)
{ }
static inline int auditsc_get_stamp(struct audit_context *ctx,
struct timespec *t, unsigned int *serial)
{
return 0;
}
static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
{
return INVALID_UID;
}
static inline int audit_get_sessionid(struct task_struct *tsk)
{
return -1;
}
static inline void audit_log_task_context(struct audit_buffer *ab)
{ }
static inline void audit_log_task_info(struct audit_buffer *ab,
struct task_struct *tsk)
{ }
static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
{ }
static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
gid_t gid, umode_t mode)
{ }
static inline int audit_bprm(struct linux_binprm *bprm)
{
return 0;
}
static inline void audit_socketcall(int nargs, unsigned long *args)
{ }
static inline void audit_fd_pair(int fd1, int fd2)
{ }
static inline int audit_sockaddr(int len, void *addr)
{
return 0;
}
static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
{ }
static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
unsigned int msg_prio,
const struct timespec *abs_timeout)
{ }
static inline void audit_mq_notify(mqd_t mqdes,
const struct sigevent *notification)
{ }
static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
{ }
static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
const struct cred *new,
const struct cred *old)
{
return 0;
}
static inline void audit_log_capset(pid_t pid, const struct cred *new,
const struct cred *old)
{ }
static inline void audit_mmap_fd(int fd, int flags)
{ }
static inline void audit_ptrace(struct task_struct *t)
{ }
#define audit_n_rules 0 #define audit_n_rules 0
#define audit_signals 0 #define audit_signals 0
#endif /* CONFIG_AUDITSYSCALL */ #endif /* CONFIG_AUDITSYSCALL */
@ -681,7 +753,6 @@ extern void audit_log_n_hex(struct audit_buffer *ab,
extern void audit_log_n_string(struct audit_buffer *ab, extern void audit_log_n_string(struct audit_buffer *ab,
const char *buf, const char *buf,
size_t n); size_t n);
#define audit_log_string(a,b) audit_log_n_string(a, b, strlen(b));
extern void audit_log_n_untrustedstring(struct audit_buffer *ab, extern void audit_log_n_untrustedstring(struct audit_buffer *ab,
const char *string, const char *string,
size_t n); size_t n);
@ -698,7 +769,8 @@ extern void audit_log_lost(const char *message);
#ifdef CONFIG_SECURITY #ifdef CONFIG_SECURITY
extern void audit_log_secctx(struct audit_buffer *ab, u32 secid); extern void audit_log_secctx(struct audit_buffer *ab, u32 secid);
#else #else
#define audit_log_secctx(b,s) do { ; } while (0) static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
{ }
#endif #endif
extern int audit_update_lsm_rules(void); extern int audit_update_lsm_rules(void);
@ -710,22 +782,50 @@ extern int audit_receive_filter(int type, int pid, int seq,
void *data, size_t datasz, kuid_t loginuid, void *data, size_t datasz, kuid_t loginuid,
u32 sessionid, u32 sid); u32 sessionid, u32 sid);
extern int audit_enabled; extern int audit_enabled;
#else #else /* CONFIG_AUDIT */
#define audit_log(c,g,t,f,...) do { ; } while (0) static inline __printf(4, 5)
#define audit_log_start(c,g,t) ({ NULL; }) void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
#define audit_log_vformat(b,f,a) do { ; } while (0) const char *fmt, ...)
#define audit_log_format(b,f,...) do { ; } while (0) { }
#define audit_log_end(b) do { ; } while (0) static inline struct audit_buffer *audit_log_start(struct audit_context *ctx,
#define audit_log_n_hex(a,b,l) do { ; } while (0) gfp_t gfp_mask, int type)
#define audit_log_n_string(a,c,l) do { ; } while (0) {
#define audit_log_string(a,c) do { ; } while (0) return NULL;
#define audit_log_n_untrustedstring(a,n,s) do { ; } while (0) }
#define audit_log_untrustedstring(a,s) do { ; } while (0) static inline __printf(2, 3)
#define audit_log_d_path(b, p, d) do { ; } while (0) void audit_log_format(struct audit_buffer *ab, const char *fmt, ...)
#define audit_log_key(b, k) do { ; } while (0) { }
#define audit_log_link_denied(o, l) do { ; } while (0) static inline void audit_log_end(struct audit_buffer *ab)
#define audit_log_secctx(b,s) do { ; } while (0) { }
static inline void audit_log_n_hex(struct audit_buffer *ab,
const unsigned char *buf, size_t len)
{ }
static inline void audit_log_n_string(struct audit_buffer *ab,
const char *buf, size_t n)
{ }
static inline void audit_log_n_untrustedstring(struct audit_buffer *ab,
const char *string, size_t n)
{ }
static inline void audit_log_untrustedstring(struct audit_buffer *ab,
const char *string)
{ }
static inline void audit_log_d_path(struct audit_buffer *ab,
const char *prefix,
const struct path *path)
{ }
static inline void audit_log_key(struct audit_buffer *ab, char *key)
{ }
static inline void audit_log_link_denied(const char *string,
const struct path *link)
{ }
static inline void audit_log_secctx(struct audit_buffer *ab, u32 secid)
{ }
#define audit_enabled 0 #define audit_enabled 0
#endif #endif /* CONFIG_AUDIT */
static inline void audit_log_string(struct audit_buffer *ab, const char *buf)
{
audit_log_n_string(ab, buf, strlen(buf));
}
#endif #endif
#endif #endif