gitproxy/RTLPlayground
1
0
Fork 0
mirror of https://github.com/logicog/RTLPlayground.git synced 2026-08-30 14:52:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

Handle outgoing DHCP server messages correctly

Browse Source
This commit is contained in:
logicog
2026-03-09 22:06:57 +01:00
parent dd0ecc5438
commit e9171d7d22
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
uip/uip_arp.c
+6
View File
@@ -106,6 +106,7 @@ struct ethip_hdr {
u16_t ipchksum; u16_t ipchksum;
u16_t srcipaddr[2], u16_t srcipaddr[2],
destipaddr[2]; destipaddr[2];
u16_t sport, dport;
}; };
#define ARP_REQUEST 1 #define ARP_REQUEST 1
@@ -370,6 +371,11 @@ uip_arp_out(void) __banked
If not ARP table entry is found, we overwrite the original IP If not ARP table entry is found, we overwrite the original IP
packet with an ARP request for the IP address. */ packet with an ARP request for the IP address. */
if (IPBUF->sport == 0x4300 && !IPBUF->destipaddr[0] && !IPBUF->destipaddr[1]) {
IPBUF->destipaddr[0] = 0xffff;
IPBUF->destipaddr[1] = 0xffff;
IPBUF->dport = 0x4400;
}
/* First check if destination is a local broadcast. */ /* First check if destination is a local broadcast. */
if(uip_ipaddr_cmpc(IPBUF->destipaddr, broadcast_ipaddr)) { if(uip_ipaddr_cmpc(IPBUF->destipaddr, broadcast_ipaddr)) {
memcpyc(IPBUF->ethhdr.dest.addr, broadcast_ethaddr.addr, 6); memcpyc(IPBUF->ethhdr.dest.addr, broadcast_ethaddr.addr, 6);