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Add posssibility to disable debug in dhcp.c

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This commit is contained in:
lilian 2017-09-28 10:07:16 +02:00
parent b83c2629b9
commit ce67dcd097
1 changed files with 21 additions and 14 deletions
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35
extras/dhcpserver/dhcpserver.c
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@ -20,6 +20,12 @@
#include <lwip/netif.h> #include <lwip/netif.h>
#include <lwip/api.h> #include <lwip/api.h>
#if (DHCP_DEBUG == LWIP_DBG_ON)
#define debug(s, ...) printf("%s: " s "\n", "DHCP", ## __VA_ARGS__)
#else
#define debug(s, ...)
#endif
/* Grow the size of the lwip dhcp_msg struct's options field, as LWIP /* Grow the size of the lwip dhcp_msg struct's options field, as LWIP
defaults to a 68 octet options field for its DHCP client, and most defaults to a 68 octet options field for its DHCP client, and most
full-sized clients send us more than this. */ full-sized clients send us more than this. */
@ -108,7 +114,7 @@ static void dhcpserver_task(void *pxParameter)
state->nc = netconn_new (NETCONN_UDP); state->nc = netconn_new (NETCONN_UDP);
if(!state->nc) { if(!state->nc) {
printf("DHCP Server Error: Failed to allocate socket.\r\n"); debug("DHCP Server Error: Failed to allocate socket.");
return; return;
} }
@ -122,7 +128,7 @@ static void dhcpserver_task(void *pxParameter)
/* Receive a DHCP packet */ /* Receive a DHCP packet */
err_t err = netconn_recv(state->nc, &netbuf); err_t err = netconn_recv(state->nc, &netbuf);
if(err != ERR_OK) { if(err != ERR_OK) {
printf("DHCP Server Error: Failed to receive DHCP packet. err=%d\r\n", err); debug("DHCP Server Error: Failed to receive DHCP packet. err=%d", err);
continue; continue;
} }
@ -144,7 +150,7 @@ static void dhcpserver_task(void *pxParameter)
continue; continue;
} }
if(netbuf_len(netbuf) >= sizeof(struct dhcp_msg)) { if(netbuf_len(netbuf) >= sizeof(struct dhcp_msg)) {
printf("DHCP Server Warning: Client sent more options than we know how to parse. len=%d\r\n", netbuf_len(netbuf)); debug("DHCP Server Warning: Client sent more options than we know how to parse. len=%d", netbuf_len(netbuf));
} }
netbuf_copy(netbuf, &received, sizeof(struct dhcp_msg)); netbuf_copy(netbuf, &received, sizeof(struct dhcp_msg));
@ -153,18 +159,19 @@ static void dhcpserver_task(void *pxParameter)
uint8_t *message_type = find_dhcp_option(&received, DHCP_OPTION_MESSAGE_TYPE, uint8_t *message_type = find_dhcp_option(&received, DHCP_OPTION_MESSAGE_TYPE,
DHCP_OPTION_MESSAGE_TYPE_LEN, NULL); DHCP_OPTION_MESSAGE_TYPE_LEN, NULL);
if(!message_type) { if(!message_type) {
printf("DHCP Server Error: No message type field found"); debug("DHCP Server Error: No message type field found");
continue; continue;
} }
#if (DHCP_DEBUG == LWIP_DBG_ON)
printf("State dump. Message type %d\n", *message_type); debug("State dump. Message type %d", *message_type);
for(int i = 0; i < state->max_leases; i++) { for(int i = 0; i < state->max_leases; i++) {
dhcp_lease_t *lease = &state->leases[i]; dhcp_lease_t *lease = &state->leases[i];
printf("lease slot %d expiry %d hwaddr %02x:%02x:%02x:%02x:%02x:%02x\r\n", i, lease->expires, lease->hwaddr[0], debug("lease slot %d expiry %d hwaddr %02x:%02x:%02x:%02x:%02x:%02x", i, lease->expires, lease->hwaddr[0],
lease->hwaddr[1], lease->hwaddr[2], lease->hwaddr[3], lease->hwaddr[4], lease->hwaddr[1], lease->hwaddr[2], lease->hwaddr[3], lease->hwaddr[4],
lease->hwaddr[5]); lease->hwaddr[5]);
} }
#endif
switch(*message_type) { switch(*message_type) {
case DHCP_DISCOVER: case DHCP_DISCOVER:
@ -176,7 +183,7 @@ static void dhcpserver_task(void *pxParameter)
case DHCP_RELEASE: case DHCP_RELEASE:
handle_dhcp_release(&received); handle_dhcp_release(&received);
default: default:
printf("DHCP Server Error: Unsupported message type %d\r\n", *message_type); debug("DHCP Server Error: Unsupported message type %d", *message_type);
break; break;
} }
} }
@ -191,7 +198,7 @@ static void handle_dhcp_discover(struct dhcp_msg *dhcpmsg)
dhcp_lease_t *freelease = find_lease_slot(dhcpmsg->chaddr); dhcp_lease_t *freelease = find_lease_slot(dhcpmsg->chaddr);
if(!freelease) { if(!freelease) {
printf("DHCP Server: All leases taken.\r\n"); debug("DHCP Server: All leases taken.");
return; /* Nothing available, so do nothing */ return; /* Nothing available, so do nothing */
} }
@ -230,7 +237,7 @@ static void handle_dhcp_request(struct dhcp_msg *dhcpmsg)
} else if(ip_addr_cmp(&requested_ip, IP_ADDR_ANY)) { } else if(ip_addr_cmp(&requested_ip, IP_ADDR_ANY)) {
ip_addr_copy(requested_ip, dhcpmsg->ciaddr); ip_addr_copy(requested_ip, dhcpmsg->ciaddr);
} else { } else {
printf("DHCP Server Error: No requested IP\r\n"); debug("DHCP Server Error: No requested IP");
send_dhcp_nak(dhcpmsg); send_dhcp_nak(dhcpmsg);
return; return;
} }
@ -240,14 +247,14 @@ static void handle_dhcp_request(struct dhcp_msg *dhcpmsg)
|| ip4_addr2(&requested_ip) != ip4_addr2(&state->first_client_addr) || ip4_addr2(&requested_ip) != ip4_addr2(&state->first_client_addr)
|| ip4_addr3(&requested_ip) != ip4_addr3(&state->first_client_addr)) { || ip4_addr3(&requested_ip) != ip4_addr3(&state->first_client_addr)) {
sprintf_ipaddr(&requested_ip, ipbuf); sprintf_ipaddr(&requested_ip, ipbuf);
printf("DHCP Server Error: %s not an allowed IP\r\n", ipbuf); debug("DHCP Server Error: %s not an allowed IP", ipbuf);
send_dhcp_nak(dhcpmsg); send_dhcp_nak(dhcpmsg);
return; return;
} }
/* Test the last octet is in the MAXCLIENTS range */ /* Test the last octet is in the MAXCLIENTS range */
int16_t octet_offs = ip4_addr4(&requested_ip) - ip4_addr4(&state->first_client_addr); int16_t octet_offs = ip4_addr4(&requested_ip) - ip4_addr4(&state->first_client_addr);
if(octet_offs < 0 || octet_offs >= state->max_leases) { if(octet_offs < 0 || octet_offs >= state->max_leases) {
printf("DHCP Server Error: Address out of range\r\n"); debug("DHCP Server Error: Address out of range");
send_dhcp_nak(dhcpmsg); send_dhcp_nak(dhcpmsg);
return; return;
} }
@ -255,14 +262,14 @@ static void handle_dhcp_request(struct dhcp_msg *dhcpmsg)
dhcp_lease_t *requested_lease = state->leases + octet_offs; dhcp_lease_t *requested_lease = state->leases + octet_offs;
if(requested_lease->expires != 0 && memcmp(requested_lease->hwaddr, dhcpmsg->chaddr,dhcpmsg->hlen)) if(requested_lease->expires != 0 && memcmp(requested_lease->hwaddr, dhcpmsg->chaddr,dhcpmsg->hlen))
{ {
printf("DHCP Server Error: Lease for address already taken\r\n"); debug("DHCP Server Error: Lease for address already taken");
send_dhcp_nak(dhcpmsg); send_dhcp_nak(dhcpmsg);
return; return;
} }
memcpy(requested_lease->hwaddr, dhcpmsg->chaddr, dhcpmsg->hlen); memcpy(requested_lease->hwaddr, dhcpmsg->chaddr, dhcpmsg->hlen);
sprintf_ipaddr(&requested_ip, ipbuf); sprintf_ipaddr(&requested_ip, ipbuf);
printf("DHCP lease addr %s assigned to MAC %02x:%02x:%02x:%02x:%02x:%02x\r\n", ipbuf, requested_lease->hwaddr[0], debug("DHCP lease addr %s assigned to MAC %02x:%02x:%02x:%02x:%02x:%02x", ipbuf, requested_lease->hwaddr[0],
requested_lease->hwaddr[1], requested_lease->hwaddr[2], requested_lease->hwaddr[3], requested_lease->hwaddr[4], requested_lease->hwaddr[1], requested_lease->hwaddr[2], requested_lease->hwaddr[3], requested_lease->hwaddr[4],
requested_lease->hwaddr[5]); requested_lease->hwaddr[5]);
requested_lease->expires = DHCPSERVER_LEASE_TIME * configTICK_RATE_HZ; requested_lease->expires = DHCPSERVER_LEASE_TIME * configTICK_RATE_HZ;