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Supply a stub bpf_validate() (always returning false - the script is not
valid) if BPF is missing. The netgraph_bpf node forced bpf to be present, reflect that in the options. Stop doing a 'count bpf' - we provide stubs. Since a handful of drivers still refer to "bpf.h", provide a more accurate indication that the API is present always. (eg: netinet6)
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=71802
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@ -779,7 +779,10 @@ msdosfs/msdosfs_lookup.c optional msdosfs
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msdosfs/msdosfs_vfsops.c optional msdosfs
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msdosfs/msdosfs_vnops.c optional msdosfs
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net/bpf.c standard
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net/bpf_filter.c count bpf
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net/bpf_filter.c optional bpf
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bpf.h standard \
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compile-with "echo '#define NBPF 1' > bpf.h" \
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no-obj no-implicit-rule before-depend
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net/bridge.c optional bridge
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net/bsd_comp.c optional ppp_bsdcomp
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#net/hostcache.c standard
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@ -493,3 +493,4 @@ NDEVFSOVERFLOW opt_devfs.h
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# various 'device presence' options.
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DEV_SNP opt_snp.h
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DEV_MCA opt_mca.h
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DEV_BPF opt_bpf.h
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@ -40,7 +40,8 @@
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* $FreeBSD$
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*/
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#include "bpf.h"
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#include "opt_bpf.h"
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#include "opt_netgraph.h"
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#ifndef __GNUC__
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#define inline
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@ -80,7 +81,7 @@
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static MALLOC_DEFINE(M_BPF, "BPF", "BPF data");
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#if NBPF > 0
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#if defined(DEV_BPF) || defined(NETGRAPH_BPF)
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/*
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* Older BSDs don't have kernel malloc.
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@ -1396,7 +1397,7 @@ bpf_drvinit(unused)
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SYSINIT(bpfdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bpf_drvinit,NULL)
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#else /* !BPF */
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#else /* !DEV_BPF && !NETGRAPH_BPF */
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/*
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* NOP stubs to allow bpf-using drivers to load and function.
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*
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@ -1442,4 +1443,12 @@ bpf_filter(pc, p, wirelen, buflen)
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return -1; /* "no filter" behaviour */
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}
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#endif /* !BPF */
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int
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bpf_validate(f, len)
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const struct bpf_insn *f;
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int len;
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{
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return 0; /* false */
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}
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#endif /* !DEV_BPF && !NETGRAPH_BPF */
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