diff options
author | Garrett Wollman <wollman@FreeBSD.org> | 1998-03-18 01:40:12 +0000 |
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committer | Garrett Wollman <wollman@FreeBSD.org> | 1998-03-18 01:40:12 +0000 |
commit | 2cc2df490e841a1bb427efd6d6bd35109f7326c4 (patch) | |
tree | ca3a3f519eab54ef68a0df25abf2d8df7c1235a6 /sys/net/if_vlan_var.h | |
parent | 4641c8ac1d4bc643813138a0cca42d1ece4cf87b (diff) | |
download | src-2cc2df490e841a1bb427efd6d6bd35109f7326c4.tar.gz src-2cc2df490e841a1bb427efd6d6bd35109f7326c4.zip |
Add preliminary support for IEEE 802.1Q VLAN tagging. It doesn't actually
work reliably yet (I've had panics), but it does seem to occasionally
be able to transmit and receive syntactically-correct packets.
Also fixes one of if_ethersubr.c's legion style bugs, and removes
the hostcache code from standard kernels---the code that depends on it
is not going to happen any time soon, I'm afraid.
Notes
Notes:
svn path=/head/; revision=34649
Diffstat (limited to 'sys/net/if_vlan_var.h')
-rw-r--r-- | sys/net/if_vlan_var.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/sys/net/if_vlan_var.h b/sys/net/if_vlan_var.h new file mode 100644 index 000000000000..83bb41b7e20a --- /dev/null +++ b/sys/net/if_vlan_var.h @@ -0,0 +1,84 @@ +/* + * Copyright 1998 Massachusetts Institute of Technology + * + * Permission to use, copy, modify, and distribute this software and + * its documentation for any purpose and without fee is hereby + * granted, provided that both the above copyright notice and this + * permission notice appear in all copies, that both the above + * copyright notice and this permission notice appear in all + * supporting documentation, and that the name of M.I.T. not be used + * in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. M.I.T. makes + * no representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS + * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT + * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id$ + */ + +#ifndef _NET_IF_VLAN_VAR_H_ +#define _NET_IF_VLAN_VAR_H_ 1 + +#ifdef KERNEL +struct ifvlan { + struct arpcom ifv_ac; /* make this an interface */ + struct ifnet *ifv_p; /* parent inteface of this vlan */ + struct ifv_linkmib { + int ifvm_parent; + u_int16_t ifvm_proto; /* encapsulation ethertype */ + u_int16_t ifvm_tag; /* tag to apply on packets leaving if */ + } ifv_mib; +}; +#define ifv_if ifv_ac.ac_if +#define ifv_tag ifv_mib.ifvm_tag +#endif /* KERNEL */ + +struct ether_vlan_header { + u_char evl_dhost[ETHER_ADDR_LEN]; + u_char evl_shost[ETHER_ADDR_LEN]; + u_int16_t evl_encap_proto; + u_int16_t evl_tag; + u_int16_t evl_proto; +}; + +#define EVL_VLANOFTAG(tag) ((tag) & 4095) +#define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7) +#define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ + +/* When these sorts of interfaces get their own identifier... */ +#define IFT_8021_VLAN IFT_PROPVIRTUAL + +/* sysctl(3) tags, for compatibility purposes */ +#define VLANCTL_PROTO 1 +#define VLANCTL_MAX 2 + +/* + * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. + */ +struct vlanreq { + char vlr_parent[IFNAMSIZ]; + u_short vlr_tag; +}; +#define SIOCSETVLAN SIOCSIFGENERIC +#define SIOCGETVLAN SIOCGIFGENERIC + +#ifdef KERNEL +/* shared with if_ethersubr.c: */ +extern u_int vlan_proto; +extern int vlan_input(struct ether_header *eh, struct mbuf *m); +#endif + +#endif /* _NET_IF_VLAN_VAR_H_ */ |