This would be particularly useful, for example, in the case where there is only a single network adaptor and you want all output packets to go to the single adaptor in all cases. So for that behavior you could add a read-only routing table to the board-specific long that contains a single entry, the default route: 0.0.0.0/0.
Squashed commit of the following:
net/route: RAM and ROM routing tables build correctly in all IPv4 and IPv6 configurations.
net/route: Verify IPv6 ROM route build; Make number of ROM routes a variable, not a configuration item.
net/route: Add initial support for ROM-base, read-only routing tables.
net/route: Adjust and generalize some structures, rename some functions, and add configuration and build support that will eventually support read-only routing tables.
net/route: Some initial though experiments on use of a fixe, read-only routing table
drivers/usbdev/cdcacm.c: Change design for queuing RX packets that cannot be processed. Previous design had a logic problem that could cause data loss.
drivers/usbdev/cdcacm: Fixes one of two know design issues.
drivers/usbdev/cdcacm: First attempt to plug data leak in input flow control design. Still missing a few things.
net/socket/recvfrom.c: Check fromlen integrity before using it.
net/socket/net_sockets.c: Always check for valid psock before using.
net/tcp/tcp_send_unbuffered.c: Avoid using psock beforing checking its integrity.
sched/timer/timer_create.c: Fix watchdog resource leak if cannot allocate a new timer.
From: Sakari Kapanen <sakari.kapanen@optofidelity.com>
Date: Sun, 24 Sep 2017 13:19:25 +0300
Subject: [PATCH] ICMPv6: fix router advertisement
Fixes several errors preventing icmpv6_radvertise.c from being compiled. Fixes conversions to network byte order (namely vlifetime, plifetime, mtu).
IPv6 source address is set to link-local IP address instead of the address in the netdev structure. This is in compliance to RFC 4861. RA didn't work on Linux before this change.
Finally, router prefix and prefix length are derived from the IPv6 address and netmask in the netdev structure. This seems to make more sense than using a predefined, separate prefix from the config.
stm32:stm32f40xxx I2C ensure proper isr handling
Injecting data errors that causes a STOP to be perceived by the
driver, will continually re-enter the isr with SB not set and BTF
and RxNE set. This changes allows the interrupts to
be cleared and propagates a I2C_SR1_TIMEOUT to the waiting task.
Approved-by: Gregory Nutt <gnutt@nuttx.org>
Networking: Add implementation of logic for SIOCGIFCONF and SIOCGLIFCOF IOCTL commnds.
Networking: Add definitions and stuctures to support SIOCGIFCONF and SIOCGLIFCONF IOCTL commands.
Gregory Nutt