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Embedded TCP/IP stack
4.1.0
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Stack Configuration Parameters
Detailed Description
This section describes the main configuration parameters of the FNET TCP/IP stack.
The user may override and change the default values in the application-specific configuration file fnet_user_config.h.
Modules | |
| IPv6-Specific Configuration Parameters | |
| IPv4-Specific Configuration Parameters | |
Macros | |
| #define | FNET_CFG_ASSET (0) |
| FNET_ASSERT() support: More... | |
| #define | FNET_CFG_TCP |
| TCP protocol support: More... | |
| #define | FNET_CFG_LOOPBACK (0) |
| Loopback interface: More... | |
| #define | FNET_CFG_LOOPBACK_NAME "loop" |
| Defines name for the Loopback interface. . More... | |
| #define | FNET_CFG_LOOPBACK_MULTICAST (0) |
| Local loopback of multicast datagrams: More... | |
| #define | FNET_CFG_LOOPBACK_BROADCAST (0) |
| Local loopback of broadcast datagrams: More... | |
| #define | FNET_CFG_LOOPBACK_MTU (1576U) |
| Defines the Maximum Transmission Unit for the Loopback interface. By default, it is set to 1576. . More... | |
| #define | FNET_CFG_MULTICAST |
| Multicast group support: More... | |
| #define | FNET_CFG_MULTICAST_MAX (10u) |
| Maximum number of unique multicast memberships may exist at the same time in the whole system. You may join the same host group address on multiple interfaces. More... | |
| #define | FNET_CFG_MULTICAST_SOCKET_MAX (1u) |
| Maximum number of multicast memberships may exist at the same time per one socket. More... | |
| #define | FNET_CFG_ARP_TABLE_SIZE (10U) |
| Maximum number of entries in the ARP table, by network interface. . More... | |
| #define | FNET_CFG_ARP_EXPIRE_TIMEOUT (1200U) |
| Period of time after which ARP cache entries are automatically expired (in seconds). If set to 0, the expiration is disabled (not recommended). Default value is 1200 seconds (20 minutes). . More... | |
| #define | FNET_CFG_TCP_DISCARD_OUT_OF_ORDER (0) |
| Discarding of TCP segments that are received out of order: More... | |
| #define | FNET_CFG_TCP_URGENT |
| TCP "urgent" (out-of-band) data processing: More... | |
| #define | FNET_CFG_UDP |
| UDP protocol support: More... | |
| #define | FNET_CFG_UDP_CHECKSUM |
| UDP checksum: More... | |
| #define | FNET_CFG_RAW |
| RAW socket support: More... | |
| #define | FNET_CFG_MULTITHREADING |
| Multi-threading support: More... | |
| #define | FNET_CFG_SOCKET_MAX (12U) |
| Maximum number of sockets that can exist at the same time. . More... | |
| #define | FNET_CFG_SOCKET_BSD_NAMES (1) |
| BSD Socket API names: More... | |
| #define | FNET_CFG_SOCKET_CALLBACK_ON_RX (0U) |
| "Socket Rx" event handler callback: More... | |
| #define | FNET_CFG_SOCKET_TCP_MSS (0u) |
| The default value of the TCP_MSS option (TCP Maximum Segment Size). The TCP Maximum Segment Size (MSS) defines the maximum amount of data that a host is willing to accept in a single TCP segment. This Maximum Segment Size (MSS) announcement is sent from the data receiver to the data sender and says "I can accept TCP segments up to size X". The size (X) may be larger or smaller than the default. The MSS counts only data octets in the segment, it does not count the TCP header or the IP header. This option can be set to: More... | |
| #define | FNET_CFG_SOCKET_TCP_TX_BUF_SIZE (2U * 1024U) |
| Default maximum size for the TCP send-socket buffer. At runtime, it can be changed by fnet_socket_setopt() using the SO_SNDBUF socket option. . More... | |
| #define | FNET_CFG_SOCKET_TCP_RX_BUF_SIZE (2U * 1024U) |
| Default maximum size for the TCP receive-socket buffer. At runtime, it can be changed by fnet_socket_setopt() using the SO_RCVBUF socket option. . More... | |
| #define | FNET_CFG_SOCKET_UDP_TX_BUF_SIZE (2U * 1024U) |
| Default maximum size for the UDP send-socket buffer. At runtime, it can be changed by fnet_socket_setopt() using the SO_SNDBUF socket option. . More... | |
| #define | FNET_CFG_SOCKET_UDP_RX_BUF_SIZE (2U * 1024U) |
| Default maximum size for the UDP receive-socket buffer. At runtime, it can be changed by fnet_socket_setopt() using the SO_RCVBUF socket option. . More... | |
| #define | FNET_CFG_SOCKET_RAW_TX_BUF_SIZE (2U * 1024U) |
| Default maximum size for the RAW send-socket buffer. At runtime, it can be changed by fnet_socket_setopt() using the SO_SNDBUF socket option. . More... | |
| #define | FNET_CFG_SOCKET_RAW_RX_BUF_SIZE (2U * 1024U) |
| Default maximum size for the RAW receive-socket buffer. At runtime, it can be changed by fnet_socket_setopt() using the SO_RCVBUF socket option. . More... | |
| #define | FNET_CFG_IP_MAX_PACKET (10U*1024U) |
| Maximum size for the IPv4 and IPv6 datagram, the largest allowed value is 65535. Default value is 10 KB. . More... | |
| #define | FNET_CFG_TIMER_POLL_AUTOMATIC (1) |
| Automatic timer polling: More... | |
| #define | FNET_CFG_ASSERT (0U) |
| FNET assert macro FNET_ASSERT(): More... | |
| #define | FNET_CFG_OVERLOAD_MEMCPY (0) |
| Your own alternate implementation for fnet_memcpy(). More... | |
© 2005-2018 by Andrey Butok. http://fnet.sourceforge.net