diff options
| author | Martin Pelikan <pelikan@cvs.openbsd.org> | 2015-02-10 00:53:56 +0000 |
|---|---|---|
| committer | Martin Pelikan <pelikan@cvs.openbsd.org> | 2015-02-10 00:53:56 +0000 |
| commit | c8d479f89cb6cadb0e38629c2dbddd019baa54ab (patch) | |
| tree | a6a06c240b6835de31c6cf029529462335eec710 /sys/net | |
| parent | 99fd7a27030f7b23835793be685b285060d21036 (diff) | |
make bpf(4) able to filter based on a pf(4) queue ID for tcpdump -Q qname
ALTQ version has been on tech@ for years, people were generally ok with it.
ok henning
Diffstat (limited to 'sys/net')
| -rw-r--r-- | sys/net/bpf.c | 12 | ||||
| -rw-r--r-- | sys/net/bpf.h | 4 | ||||
| -rw-r--r-- | sys/net/bpfdesc.h | 3 |
3 files changed, 16 insertions, 3 deletions
diff --git a/sys/net/bpf.c b/sys/net/bpf.c index 73648a532bd..a9d1821a46f 100644 --- a/sys/net/bpf.c +++ b/sys/net/bpf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bpf.c,v 1.116 2015/01/29 19:44:32 tedu Exp $ */ +/* $OpenBSD: bpf.c,v 1.117 2015/02/10 00:53:55 pelikan Exp $ */ /* $NetBSD: bpf.c,v 1.33 1997/02/21 23:59:35 thorpej Exp $ */ /* @@ -840,6 +840,14 @@ bpfioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) (BPF_DIRECTION_IN|BPF_DIRECTION_OUT); break; + case BIOCGQUEUE: /* get queue */ + *(u_int *)addr = d->bd_queue; + break; + + case BIOCSQUEUE: /* set queue */ + d->bd_queue = *(u_int *)addr; + break; + case FIONBIO: /* Non-blocking I/O */ if (*(int *)addr) d->bd_rtout = -1; @@ -1187,6 +1195,8 @@ _bpf_mtap(caddr_t arg, struct mbuf *m, u_int direction, ++d->bd_rcount; if ((direction & d->bd_dirfilt) != 0) slen = 0; + else if (d->bd_queue && m->m_pkthdr.pf.qid != d->bd_queue) + slen = 0; else slen = bpf_filter(d->bd_rfilter, (u_char *)m, pktlen, 0); diff --git a/sys/net/bpf.h b/sys/net/bpf.h index f733ef7de4c..188bb79e4e1 100644 --- a/sys/net/bpf.h +++ b/sys/net/bpf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bpf.h,v 1.47 2014/10/07 11:16:23 dlg Exp $ */ +/* $OpenBSD: bpf.h,v 1.48 2015/02/10 00:53:55 pelikan Exp $ */ /* $NetBSD: bpf.h,v 1.15 1996/12/13 07:57:33 mikel Exp $ */ /* @@ -119,6 +119,8 @@ struct bpf_version { #define BIOCGDLTLIST _IOWR('B',123, struct bpf_dltlist) #define BIOCGDIRFILT _IOR('B',124, u_int) #define BIOCSDIRFILT _IOW('B',125, u_int) +#define BIOCGQUEUE _IOR('B',126, u_int) +#define BIOCSQUEUE _IOW('B',127, u_int) /* * Direction filters for BIOCSDIRFILT/BIOCGDIRFILT diff --git a/sys/net/bpfdesc.h b/sys/net/bpfdesc.h index 256d2518d93..40d35479696 100644 --- a/sys/net/bpfdesc.h +++ b/sys/net/bpfdesc.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bpfdesc.h,v 1.23 2014/10/05 18:43:56 lteo Exp $ */ +/* $OpenBSD: bpfdesc.h,v 1.24 2015/02/10 00:53:55 pelikan Exp $ */ /* $NetBSD: bpfdesc.h,v 1.11 1995/09/27 18:30:42 thorpej Exp $ */ /* @@ -80,6 +80,7 @@ struct bpf_d { u_char bd_locked; /* true if descriptor is locked */ u_char bd_fildrop; /* true if filtered packets will be dropped */ u_char bd_dirfilt; /* direction filter */ + u_int bd_queue; /* the queue the user wants to watch (0 == all) */ int bd_hdrcmplt; /* false to fill in src lladdr automatically */ int bd_async; /* non-zero if packet reception should generate signal */ int bd_sig; /* signal to send upon packet reception */ |