- Fix a missing back pointer assignment in struct prefix to struct rainfo
when addr="" is specified. This caused SIGSEGV.
- Insert a prefix element to a tail queue after setting parameters.
Options for DNS Configuration) into rtadvd(8) and rtsold(8). DNS
information received by rtsold(8) will go to resolv.conf(5) by
resolvconf(8) script. This is based on work by J.R. Oldroyd (kern/156259)
but revised extensively[1].
- rtadvd(8) now supports "noifprefix" to disable gathering on-link prefixes
from interfaces when no "addr" is specified[2]. An entry in rtadvd.conf
with "noifprefix" + no "addr" generates an RA message with no prefix
information option.
- rtadvd(8) now supports RTM_IFANNOUNCE message to fix crashes when an
interface is added or removed.
- Correct bogus ND_OPT_ROUTE_INFO value to one in RFC 4191.
Reviewed by: bz[1]
PR: kern/156259 [1]
PR: bin/152458 [2]
IFF_ND6_ACCEPT_RTADV, and net.inet6.ip6.forwarding.
ra_output:
(lifetime == 0) = output
(lifetime != 0 && (ACCEPT_RTADV || !ip6.forwarding) = no output
ra_input:
ACCEPT_RTADV = input
!ACCEPT_RTADV = no input
Note that the current implementation sends RAs with zero-lifetime even if
ip6.forwarding == 0. This behavior is derived from KAME and different from
RFC 4861.
interface addition/removal via RTM_IFANNOUNCE message and update the internal
structure.
TO BE FIXED:
The advertising interface list still depends on the command line argument.
The configuration file cannot be reloaded.
prefixes from the kernel's routing table. A rtadvd.conf with "noonlinkprefix"
+ no "addr" generates an RA message with no prefix information option.
PR: bin/152458
made the logic behind them unnecessarily complicated. This change is
a preparation to add support of dynamically-added/removed interfaces and the
link status changes in a more reliable way. Changes include:
- Use queue(3) for linked-list manipulation.
- Use consistent variable names.
- Use (AF_INET6, s, d, sizeof(d)) instead of (AF_INET6, s, a, INET6_ADDRSTRLEN)
for inet_ntop().
- style(9) fixes.
No functional change in this commit.
Options for DNS Configuration) into rtadvd(8) and rtsold(8). DNS
information received by rtsold(8) will go to resolv.conf(5) by
resolvconf(8) script. Lifetime handling is not supported at this
moment.
Note: when receiving a link-local scope address rtsold(8) adds a scope
id into addresses in the script arguments based on the received
interface in a representation defined in RFC 4007 (e.g. fe80::1%bge0).
However, there are some shell scripts using printf(1) (including
resolvconf(8)) cannot process it properly because printf(1) can
recognize the character % as special.
Based on work by: J.R. Oldroyd
PR: kern/156259
values like 0x80 or 0x40 into a uint8_t foo:1 bitfield. This would
result in the bit always being 0. One of these caused a warning for
overflow (one that was 0x80), but the other didn't. They were both
wrong.
This is why I hate code that mixes c struct bitfields and #defines.
The rest of the fields accessed by the program should be audited.
