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Whitespace, style cleanups, and improved comments.

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This commit is contained in:
andre 2013-08-24 12:03:24 +00:00
parent 583ac34809
commit aeda1bfef5
1 changed files with 24 additions and 22 deletions
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46
sys/net/pfil.h
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@ -52,9 +52,9 @@ typedef int (*pfil_func_t)(void *, struct mbuf **, struct ifnet *, int,
* together and after each other in the specified order.
*/
struct packet_filter_hook {
TAILQ_ENTRY(packet_filter_hook) pfil_chain;
pfil_func_t pfil_func;
void *pfil_arg;
TAILQ_ENTRY(packet_filter_hook) pfil_chain;
pfil_func_t pfil_func;
void *pfil_arg;
};
#define PFIL_IN 0x00000001
@ -74,23 +74,23 @@ typedef TAILQ_HEAD(pfil_chain, packet_filter_hook) pfil_chain_t;
* For packet is then run through the hook chain for inspection.
*/
struct pfil_head {
pfil_chain_t ph_in;
pfil_chain_t ph_out;
int ph_type;
int ph_nhooks;
pfil_chain_t ph_in;
pfil_chain_t ph_out;
int ph_type;
int ph_nhooks;
#if defined( __linux__ ) || defined( _WIN32 )
rwlock_t ph_mtx;
rwlock_t ph_mtx;
#else
struct rmlock *ph_plock; /* Pointer to the used lock */
struct rmlock ph_lock; /* Private lock storage */
int flags;
struct rmlock ph_lock; /* Private lock storage */
int flags;
#endif
union {
u_long phu_val;
void *phu_ptr;
u_long phu_val;
void *phu_ptr;
} ph_un;
#define ph_af ph_un.phu_val
#define ph_ifnet ph_un.phu_ptr
#define ph_af ph_un.phu_val
#define ph_ifnet ph_un.phu_ptr
LIST_ENTRY(pfil_head) ph_list;
};
@ -98,6 +98,7 @@ struct pfil_head {
struct pfil_head *pfil_head_get(int, u_long);
int pfil_add_hook(pfil_func_t, void *, int, struct pfil_head *);
int pfil_remove_hook(pfil_func_t, void *, int, struct pfil_head *);
#define PFIL_HOOKED(p) ((p)->ph_nhooks > 0)
/* Public functions to run the packet inspection by protocols. */
int pfil_run_hooks(struct pfil_head *, struct mbuf **, struct ifnet *,
@ -107,16 +108,16 @@ int pfil_run_hooks(struct pfil_head *, struct mbuf **, struct ifnet *,
int pfil_head_register(struct pfil_head *);
int pfil_head_unregister(struct pfil_head *);
/* Internal pfil locking functions. */
/* Public pfil locking functions for self managed locks by packet filters. */
struct rm_priotracker; /* Do not require including rmlock header */
int pfil_try_rlock(struct pfil_head *, struct rm_priotracker *);
void pfil_rlock(struct pfil_head *, struct rm_priotracker *);
void pfil_runlock(struct pfil_head *, struct rm_priotracker *);
void pfil_wlock(struct pfil_head *);
void pfil_wunlock(struct pfil_head *);
int pfil_wowned(struct pfil_head *ph);
int pfil_try_rlock(struct pfil_head *, struct rm_priotracker *);
void pfil_rlock(struct pfil_head *, struct rm_priotracker *);
void pfil_runlock(struct pfil_head *, struct rm_priotracker *);
void pfil_wlock(struct pfil_head *);
void pfil_wunlock(struct pfil_head *);
int pfil_wowned(struct pfil_head *ph);
#define PFIL_HOOKED(p) ((p)->ph_nhooks > 0)
/* Internal pfil locking functions. */
#define PFIL_LOCK_INIT_REAL(l, t) \
rm_init_flags(l, "PFil " t " rmlock", RM_RECURSE)
#define PFIL_LOCK_DESTROY_REAL(l) \
@ -132,6 +133,7 @@ int pfil_wowned(struct pfil_head *ph);
if ((p)->flags & PFIL_FLAG_PRIVATE_LOCK) \
PFIL_LOCK_DESTROY_REAL((p)->ph_plock); \
} while (0)
#define PFIL_TRY_RLOCK(p, t) rm_try_rlock((p)->ph_plock, (t))
#define PFIL_RLOCK(p, t) rm_rlock((p)->ph_plock, (t))
#define PFIL_WLOCK(p) rm_wlock((p)->ph_plock)