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| author | rwatson <rwatson@FreeBSD.org> | 2004-02-29 15:32:33 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2004-02-29 15:32:33 +0000 |
| commit | d108afc2e8f67ee2f8cf2ee59b7637118c70f43a (patch) | |
| tree | 52f910f3c44b62d143f4b595c3d7ecf3340ad8e7 /sys/net | |
| parent | d882001178491ecc8b2a865b87643ea794238f0b (diff) | |
| download | FreeBSD-src-d108afc2e8f67ee2f8cf2ee59b7637118c70f43a.zip FreeBSD-src-d108afc2e8f67ee2f8cf2ee59b7637118c70f43a.tar.gz | |
Grab Giant after MAC processing on outgoing packets being sent via
BPF. Grab the BPF descriptor lock before entering MAC since the MAC
Framework references BPF descriptor fields, including the BPF
descriptor label.
Submitted by: sam
Diffstat (limited to 'sys/net')
| -rw-r--r-- | sys/net/bpf.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/net/bpf.c b/sys/net/bpf.c index a24cce9..d010640 100644 --- a/sys/net/bpf.c +++ b/sys/net/bpf.c @@ -578,10 +578,12 @@ bpfwrite(dev, uio, ioflag) if (d->bd_hdrcmplt) dst.sa_family = pseudo_AF_HDRCMPLT; - mtx_lock(&Giant); #ifdef MAC + BPFD_LOCK(d); mac_create_mbuf_from_bpfdesc(d, m); + BPFD_UNLOCK(d); #endif + mtx_lock(&Giant); error = (*ifp->if_output)(ifp, m, &dst, (struct rtentry *)0); mtx_unlock(&Giant); /* |
