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Make it a tad easier to base other encapsulation schemes on this driver

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by restoring the ifv_proto field in the vlan softc and putting it to use
this time.  It's a good companion for ifv_encaplen, which has already been
used throughout this driver.
This commit is contained in:
Yaroslav Tykhiy 2006-08-15 16:56:43 +00:00
parent 589201fd4e
commit 73f2233d9d
1 changed files with 4 additions and 5 deletions
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9
sys/net/if_vlan.c
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@ -108,11 +108,13 @@ struct ifvlan {
int ifvm_encaplen; /* encapsulation length */
int ifvm_mtufudge; /* MTU fudged by this much */
int ifvm_mintu; /* min transmission unit */
uint16_t ifvm_proto; /* encapsulation ethertype */
uint16_t ifvm_tag; /* tag to apply on packets leaving if */
} ifv_mib;
SLIST_HEAD(, vlan_mc_entry) vlan_mc_listhead;
LIST_ENTRY(ifvlan) ifv_list;
};
#define ifv_proto ifv_mib.ifvm_proto
#define ifv_tag ifv_mib.ifvm_tag
#define ifv_encaplen ifv_mib.ifvm_encaplen
#define ifv_mtufudge ifv_mib.ifvm_mtufudge
@ -888,7 +890,7 @@ vlan_start(struct ifnet *ifp)
mtod(m, char *), ETHER_HDR_LEN);
evl = mtod(m, struct ether_vlan_header *);
evl->evl_proto = evl->evl_encap_proto;
evl->evl_encap_proto = htons(ETHERTYPE_VLAN);
evl->evl_encap_proto = htons(ifv->ifv_proto);
evl->evl_tag = htons(ifv->ifv_tag);
#ifdef DEBUG
printf("%s: %*D\n", __func__, (int)sizeof(*evl),
@ -944,10 +946,6 @@ vlan_input(struct ifnet *ifp, struct mbuf *m)
return;
}
evl = mtod(m, struct ether_vlan_header *);
KASSERT(ntohs(evl->evl_encap_proto) == ETHERTYPE_VLAN,
("%s: bad encapsulation protocol (%u)",
__func__, ntohs(evl->evl_encap_proto)));
tag = EVL_VLANOFTAG(ntohs(evl->evl_tag));
/*
@ -1058,6 +1056,7 @@ vlan_config(struct ifvlan *ifv, struct ifnet *p, uint16_t tag)
if (error)
goto done;
#endif
ifv->ifv_proto = ETHERTYPE_VLAN;
ifv->ifv_encaplen = ETHER_VLAN_ENCAP_LEN;
ifv->ifv_mintu = ETHERMIN;
ifv->ifv_pflags = 0;