[lwip-devel] [task #7142] Sanity check user-configurable values

[Frédéric Bernon]

Follow-up Comment #2, task #7142 (project lwip):

- Error if !UDP && DHCP
- Error if !UDP && IGMP

- Error if UDP && MEMP_NUM_UDP_PCB=0
- Error if TCP && MEMP_NUM_TCP_PCB=0

- Warning if MEMP_NUM_(NETBUF|NETCONN|TCPIP_MSG)!=0 and NO_SYS=1
- Warning if MEMP_NUM_(NETBUF|NETCONN|TCPIP_MSG)!=0 and NO_SYS=1

- Warning/Error if MEMP_SYS_TIMEOUT!=0 and NO_SYS=0 and we build tcpip.c ???

>Perhaps a warning if DHCP && AUTOIP && !DHCP_AUTOIP_COOP

It can be a normal situation if you want to let the application decide of the
IP initialization method (you can set DHCP, AUTOIP, DHCP+AUTOIP)....

>MEMP_NUM_NETCONN should be at most the sum of MEMP_NUM_{TCP,RAW,UDP}_PCB 

+MEMP_NUM_TCP_PCB_LISTEN?

>TCP_WND versus PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE 

Sure of that? TCP_WND isn't "per PCB", vs a "global" PBUF_POOL" is shared by
all pcb ?



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