diff options
Diffstat (limited to 'freebsd/sys/net/bpfdesc.h')
| -rw-r--r-- | freebsd/sys/net/bpfdesc.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/freebsd/sys/net/bpfdesc.h b/freebsd/sys/net/bpfdesc.h index 03cb20dd..c3265ce1 100644 --- a/freebsd/sys/net/bpfdesc.h +++ b/freebsd/sys/net/bpfdesc.h @@ -79,6 +79,7 @@ struct bpf_d { u_char bd_promisc; /* true if listening promiscuously */ u_char bd_state; /* idle, waiting, or timed out */ u_char bd_immediate; /* true to return on packet arrival */ + u_char bd_writer; /* non-zero if d is writer-only */ int bd_hdrcmplt; /* false to fill in src lladdr automatically */ int bd_direction; /* select packet direction */ int bd_feedback; /* true to feed back sent packets */ @@ -86,7 +87,7 @@ struct bpf_d { int bd_sig; /* signal to send upon packet reception */ struct sigio * bd_sigio; /* information for async I/O */ struct selinfo bd_sel; /* bsd select info */ - struct mtx bd_mtx; /* mutex for this descriptor */ + struct mtx bd_lock; /* per-descriptor lock */ struct callout bd_callout; /* for BPF timeouts with select */ struct label *bd_label; /* MAC label for descriptor */ u_int64_t bd_fcount; /* number of packets which matched filter */ @@ -105,10 +106,16 @@ struct bpf_d { #define BPF_WAITING 1 /* waiting for read timeout in select */ #define BPF_TIMED_OUT 2 /* read timeout has expired in select */ -#define BPFD_LOCK(bd) mtx_lock(&(bd)->bd_mtx) -#define BPFD_UNLOCK(bd) mtx_unlock(&(bd)->bd_mtx) -#define BPFD_LOCK_ASSERT(bd) mtx_assert(&(bd)->bd_mtx, MA_OWNED) +#define BPFD_LOCK(bd) mtx_lock(&(bd)->bd_lock) +#define BPFD_UNLOCK(bd) mtx_unlock(&(bd)->bd_lock) +#define BPFD_LOCK_ASSERT(bd) mtx_assert(&(bd)->bd_lock, MA_OWNED) +#define BPF_PID_REFRESH(bd, td) (bd)->bd_pid = (td)->td_proc->p_pid +#define BPF_PID_REFRESH_CUR(bd) (bd)->bd_pid = curthread->td_proc->p_pid + +#define BPF_LOCK() mtx_lock(&bpf_mtx) +#define BPF_UNLOCK() mtx_unlock(&bpf_mtx) +#define BPF_LOCK_ASSERT() mtx_assert(&bpf_mtx, MA_OWNED) /* * External representation of the bpf descriptor */ @@ -143,7 +150,11 @@ struct xbpf_d { u_int64_t bd_spare[4]; }; -#define BPFIF_LOCK(bif) mtx_lock(&(bif)->bif_mtx) -#define BPFIF_UNLOCK(bif) mtx_unlock(&(bif)->bif_mtx) +#define BPFIF_RLOCK(bif) rw_rlock(&(bif)->bif_lock) +#define BPFIF_RUNLOCK(bif) rw_runlock(&(bif)->bif_lock) +#define BPFIF_WLOCK(bif) rw_wlock(&(bif)->bif_lock) +#define BPFIF_WUNLOCK(bif) rw_wunlock(&(bif)->bif_lock) + +#define BPFIF_FLAG_DYING 1 /* Reject new bpf consumers */ #endif |