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ETHARP_SUPPORT_VLAN: add support for an external VLAN filter function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)

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Simon Goldschmidt
2011-07-26 21:03:27 +02:00
parent 41c785d77a
commit 242dc34115
3 changed files with 12 additions and 2 deletions
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2
src/include/lwip/opt.h
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@@ -461,6 +461,8 @@
* Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check.
* If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted.
* If ETHARP_VLAN_CHECK is not defined, all traffic is accepted.
* Alternatively, define a function/define ETHARP_VLAN_CHECK_FN(eth_hdr, vlan)
* that returns 1 to accept a packet or 0 to drop a packet.
*/
#ifndef ETHARP_SUPPORT_VLAN
#define ETHARP_SUPPORT_VLAN 0