diff options
Diffstat (limited to 'sys/net/bpf.c')
| -rw-r--r-- | sys/net/bpf.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/sys/net/bpf.c b/sys/net/bpf.c index 7baa0c8acbc..d95392943a0 100644 --- a/sys/net/bpf.c +++ b/sys/net/bpf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bpf.c,v 1.43 2004/02/06 22:38:58 tedu Exp $ */ +/* $OpenBSD: bpf.c,v 1.44 2004/02/24 21:43:55 tedu Exp $ */ /* $NetBSD: bpf.c,v 1.33 1997/02/21 23:59:35 thorpej Exp $ */ /* @@ -50,6 +50,7 @@ #include <sys/socket.h> #include <sys/poll.h> #include <sys/kernel.h> +#include <sys/sysctl.h> #include <net/if.h> #include <net/bpf.h> @@ -1378,3 +1379,38 @@ bpfdetach(ifp) } ifp->if_bpf = NULL; } + +int +bpf_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, + size_t newlen) +{ + int newval; + int error; + + if (namelen != 1) + return (ENOTDIR); + + switch (name[0]) { + case NET_BPF_BUFSIZE: + newval = bpf_bufsize; + error = sysctl_int(oldp, oldlenp, newp, newlen, &newval); + if (error) + return (error); + if (newval < BPF_MINBUFSIZE || newval > bpf_maxbufsize) + return (EINVAL); + bpf_bufsize = newval; + break; + case NET_BPF_MAXBUFSIZE: + newval = bpf_maxbufsize; + error = sysctl_int(oldp, oldlenp, newp, newlen, &newval); + if (error) + return (error); + if (newval < BPF_MINBUFSIZE) + return (EINVAL); + bpf_maxbufsize = newval; + break; + default: + return (EOPNOTSUPP); + } + return (0); +} |