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Merge pull request #1712 from kripton/fixDhserver 

dhserver: Support DHCP clients that don't send the MESSAGETYPE as first option
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Ha Thach 2022-11-18 21:42:39 +07:00 committed by GitHub
parent 2dc7a62361 3f3f6eee1c
commit 95fb11fcff
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1 changed files with 5 additions and 1 deletions
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6
lib/networking/dhserver.c
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@ -240,7 +240,11 @@ static void udp_recv_proc(void *arg, struct udp_pcb *upcb, struct pbuf *p, const
unsigned n = p->len;
if (n > sizeof(dhcp_data)) n = sizeof(dhcp_data);
memcpy(&dhcp_data, p->payload, n);
switch (dhcp_data.dp_options[2])
ptr = find_dhcp_option(dhcp_data.dp_options, sizeof(dhcp_data.dp_options), DHCP_MESSAGETYPE);
if (ptr == NULL) return;
switch (ptr[2])
{
case DHCP_DISCOVER:
entry = entry_by_mac(dhcp_data.dp_chaddr);