Whitespace, style cleanups, and improved comments.
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8856400bcb
commit
804c784c13
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=254777
@ -52,9 +52,9 @@ typedef int (*pfil_func_t)(void *, struct mbuf **, struct ifnet *, int,
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* together and after each other in the specified order.
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*/
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struct packet_filter_hook {
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TAILQ_ENTRY(packet_filter_hook) pfil_chain;
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pfil_func_t pfil_func;
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void *pfil_arg;
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TAILQ_ENTRY(packet_filter_hook) pfil_chain;
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pfil_func_t pfil_func;
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void *pfil_arg;
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};
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#define PFIL_IN 0x00000001
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@ -74,23 +74,23 @@ typedef TAILQ_HEAD(pfil_chain, packet_filter_hook) pfil_chain_t;
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* For packet is then run through the hook chain for inspection.
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*/
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struct pfil_head {
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pfil_chain_t ph_in;
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pfil_chain_t ph_out;
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int ph_type;
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int ph_nhooks;
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pfil_chain_t ph_in;
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pfil_chain_t ph_out;
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int ph_type;
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int ph_nhooks;
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#if defined( __linux__ ) || defined( _WIN32 )
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rwlock_t ph_mtx;
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rwlock_t ph_mtx;
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#else
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struct rmlock *ph_plock; /* Pointer to the used lock */
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struct rmlock ph_lock; /* Private lock storage */
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int flags;
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struct rmlock ph_lock; /* Private lock storage */
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int flags;
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#endif
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union {
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u_long phu_val;
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void *phu_ptr;
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u_long phu_val;
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void *phu_ptr;
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} ph_un;
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#define ph_af ph_un.phu_val
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#define ph_ifnet ph_un.phu_ptr
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#define ph_af ph_un.phu_val
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#define ph_ifnet ph_un.phu_ptr
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LIST_ENTRY(pfil_head) ph_list;
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};
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@ -98,6 +98,7 @@ struct pfil_head {
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struct pfil_head *pfil_head_get(int, u_long);
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int pfil_add_hook(pfil_func_t, void *, int, struct pfil_head *);
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int pfil_remove_hook(pfil_func_t, void *, int, struct pfil_head *);
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#define PFIL_HOOKED(p) ((p)->ph_nhooks > 0)
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/* Public functions to run the packet inspection by protocols. */
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int pfil_run_hooks(struct pfil_head *, struct mbuf **, struct ifnet *,
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@ -107,16 +108,16 @@ int pfil_run_hooks(struct pfil_head *, struct mbuf **, struct ifnet *,
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int pfil_head_register(struct pfil_head *);
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int pfil_head_unregister(struct pfil_head *);
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/* Internal pfil locking functions. */
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/* Public pfil locking functions for self managed locks by packet filters. */
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struct rm_priotracker; /* Do not require including rmlock header */
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int pfil_try_rlock(struct pfil_head *, struct rm_priotracker *);
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void pfil_rlock(struct pfil_head *, struct rm_priotracker *);
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void pfil_runlock(struct pfil_head *, struct rm_priotracker *);
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void pfil_wlock(struct pfil_head *);
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void pfil_wunlock(struct pfil_head *);
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int pfil_wowned(struct pfil_head *ph);
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int pfil_try_rlock(struct pfil_head *, struct rm_priotracker *);
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void pfil_rlock(struct pfil_head *, struct rm_priotracker *);
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void pfil_runlock(struct pfil_head *, struct rm_priotracker *);
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void pfil_wlock(struct pfil_head *);
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void pfil_wunlock(struct pfil_head *);
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int pfil_wowned(struct pfil_head *ph);
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#define PFIL_HOOKED(p) ((p)->ph_nhooks > 0)
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/* Internal pfil locking functions. */
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#define PFIL_LOCK_INIT_REAL(l, t) \
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rm_init_flags(l, "PFil " t " rmlock", RM_RECURSE)
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#define PFIL_LOCK_DESTROY_REAL(l) \
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@ -132,6 +133,7 @@ int pfil_wowned(struct pfil_head *ph);
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if ((p)->flags & PFIL_FLAG_PRIVATE_LOCK) \
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PFIL_LOCK_DESTROY_REAL((p)->ph_plock); \
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} while (0)
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#define PFIL_TRY_RLOCK(p, t) rm_try_rlock((p)->ph_plock, (t))
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#define PFIL_RLOCK(p, t) rm_rlock((p)->ph_plock, (t))
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#define PFIL_WLOCK(p) rm_wlock((p)->ph_plock)
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