From ce67dcd097fc34b0b5e52a019caa386a22b2c2d5 Mon Sep 17 00:00:00 2001 From: lilian Date: Thu, 28 Sep 2017 10:07:16 +0200 Subject: [PATCH] Add posssibility to disable debug in dhcp.c --- extras/dhcpserver/dhcpserver.c | 35 ++++++++++++++++++++-------------- 1 file changed, 21 insertions(+), 14 deletions(-) diff --git a/extras/dhcpserver/dhcpserver.c b/extras/dhcpserver/dhcpserver.c index d87daab..db07cd8 100644 --- a/extras/dhcpserver/dhcpserver.c +++ b/extras/dhcpserver/dhcpserver.c @@ -20,6 +20,12 @@ #include #include +#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 defaults to a 68 octet options field for its DHCP client, and most full-sized clients send us more than this. */ @@ -108,7 +114,7 @@ static void dhcpserver_task(void *pxParameter) state->nc = netconn_new (NETCONN_UDP); if(!state->nc) { - printf("DHCP Server Error: Failed to allocate socket.\r\n"); + debug("DHCP Server Error: Failed to allocate socket."); return; } @@ -122,7 +128,7 @@ static void dhcpserver_task(void *pxParameter) /* Receive a DHCP packet */ err_t err = netconn_recv(state->nc, &netbuf); 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; } @@ -144,7 +150,7 @@ static void dhcpserver_task(void *pxParameter) continue; } 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)); @@ -153,18 +159,19 @@ static void dhcpserver_task(void *pxParameter) uint8_t *message_type = find_dhcp_option(&received, DHCP_OPTION_MESSAGE_TYPE, DHCP_OPTION_MESSAGE_TYPE_LEN, NULL); if(!message_type) { - printf("DHCP Server Error: No message type field found"); + debug("DHCP Server Error: No message type field found"); continue; } - - printf("State dump. Message type %d\n", *message_type); +#if (DHCP_DEBUG == LWIP_DBG_ON) + debug("State dump. Message type %d", *message_type); for(int i = 0; i < state->max_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[5]); } +#endif switch(*message_type) { case DHCP_DISCOVER: @@ -176,7 +183,7 @@ static void dhcpserver_task(void *pxParameter) case DHCP_RELEASE: handle_dhcp_release(&received); default: - printf("DHCP Server Error: Unsupported message type %d\r\n", *message_type); + debug("DHCP Server Error: Unsupported message type %d", *message_type); break; } } @@ -191,7 +198,7 @@ static void handle_dhcp_discover(struct dhcp_msg *dhcpmsg) dhcp_lease_t *freelease = find_lease_slot(dhcpmsg->chaddr); if(!freelease) { - printf("DHCP Server: All leases taken.\r\n"); + debug("DHCP Server: All leases taken."); 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)) { ip_addr_copy(requested_ip, dhcpmsg->ciaddr); } else { - printf("DHCP Server Error: No requested IP\r\n"); + debug("DHCP Server Error: No requested IP"); send_dhcp_nak(dhcpmsg); 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_addr3(&requested_ip) != ip4_addr3(&state->first_client_addr)) { 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); return; } /* Test the last octet is in the MAXCLIENTS range */ int16_t octet_offs = ip4_addr4(&requested_ip) - ip4_addr4(&state->first_client_addr); 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); return; } @@ -255,14 +262,14 @@ static void handle_dhcp_request(struct dhcp_msg *dhcpmsg) dhcp_lease_t *requested_lease = state->leases + octet_offs; 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); return; } memcpy(requested_lease->hwaddr, dhcpmsg->chaddr, dhcpmsg->hlen); 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[5]); requested_lease->expires = DHCPSERVER_LEASE_TIME * configTICK_RATE_HZ;