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PPP, MPPE, improve dropping of unencrypted received packet

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Improve dropping of unencrypted received packet by taking into account
all other data protocols (such as VJ packets) in a generic way.
This commit is contained in:
Sylvain Rochet 2015-08-28 00:19:32 +02:00
parent 46985bf750
commit b79c3aadd2
1 changed files with 1 additions and 8 deletions
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9
src/netif/ppp/ppp.c
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@ -768,14 +768,7 @@ void ppp_input(ppp_pcb *pcb, struct pbuf *pb) {
* the protocol is in the range of what should be encrypted.
* At the least, we drop this packet.
*/
if (pcb->settings.require_mppe && (0
#if PPP_IPV4_SUPPORT
|| protocol == PPP_IP
#endif /* PPP_IPV4_SUPPORT */
#if PPP_IPV6_SUPPORT
|| protocol == PPP_IPV6
#endif /* PPP_IPV6_SUPPORT */
)) {
if (pcb->settings.require_mppe && protocol != PPP_COMP && protocol < 0x8000) {
PPPDEBUG(LOG_ERR, ("ppp_input[%d]: MPPE required, received unencrypted data!\n", pcb->netif->num));
goto drop;
}