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Add dhcpd VLAN parameter to restrict dhcpd to given VLAN

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logicog
2026-03-09 22:11:29 +01:00
parent aa12adc098
commit 855d587243
6 changed files with 26 additions and 4 deletions
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dhcp.c
+5
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@@ -89,6 +89,7 @@ struct dhcp_pkt {
__xdata uint32_t long_value;
__xdata struct dhcpd_cstate cstates[DHCPD_MAX_CLIENTS];
__xdata uint8_t client_idx;
__xdata uint16_t dhcpd_vlan;
void dhcp_print_ip(uint8_t *a)
{
@@ -558,6 +559,10 @@ void dhcpd_start(void) __banked
print_string("dhcpd_start failed to set up socket\n");
return;
}
if (!dhcpd_vlan)
print_string("dhcpd: enabling for all VLANs\n");
else
print_string("dhcpd: enabling for VLAN "); print_short(dhcpd_vlan); write_char('\n');
dhcp_state.state = DHCP_SERVER;
dhcp_state.server[1] = uip_hostaddr[0] >> 8; dhcp_state.server[0] = uip_hostaddr[0] & 0xff;