Add rcsid

-W seconds will wait for the detached flag to clear on addresses on
interfaces marked up to allow time for the carrier to appear on the
interface.

This does not extend the -w option duration.

Move the INET6 specific code for wait_dad_exec() into af_inet6
by using a new afswtch hook af_addr_tentative.

use the new scopeid functions

branches: 1.9.6; 1.9.12;
Add to the string parse object (pstr), and its constructors, a flag that
tells whether it should detect and convert to binary a hexadecimal octet
string of the form 0x0123ABab, or leave those strings undecoded.

If the argument for a 'media', 'mediamode', 'mediaopt', '-mediaopt',
'nwkey', or 'bssid' keyword is a hexadecimal octet string, do not detect
and decode it. (Note that setifnwkey decodes hexadecimal strings on its
own.)

This fixes a bug noticed by Jim Miller where the trailing zero-octets
were discarded from hexadecimal octet-string arguments for 'nwkey'.

Make ifconfig(8) set and display preference numbers for IPv6
addresses. Make the kernel support SIOC[SG]IFADDRPREF for IPv6
interface addresses.

In in6ifa_ifpforlinklocal(), consult preference numbers before
making an otherwise arbitrary choice of in6_ifaddr. Otherwise,
preference numbers are *not* consulted by the kernel, but that will
be rather easy for somebody with a little bit of free time to fix.

Please note that setting the preference number for a link-local
IPv6 address does not work right, yet, but that ought to be fixed
soon.

In support of the changes above,

1 Add a method to struct domain for "externalizing" a sockaddr, and
provide an implementation for IPv6. Expect more work in this area: it
may be more proper to say that the IPv6 implementation "internalizes"
a sockaddr. Add sockaddr_externalize().

2 Add a subroutine, sofamily(), that returns a struct socket's address
family or AF_UNSPEC.

3 Make a lot of IPv4-specific code generic, and move it from
sys/netinet/ to sys/net/ for re-use by IPv6 parts of the kernel and
ifconfig(8).

To make sure that we always print the active link-layer address in the
'address: ' field, don't treat the first address as the active address,
but search the link-layer addresses for the ones flagged IFLR_ACTIVE,
and print those. Extract a subroutine, print_link_addresses(), for
printing link-layer addresses.

branches: 1.6.2; 1.6.4; 1.6.8;
Let us add/remove features from ifconfig, such as support for
various address families (inet, inet6, iso, atalk) and protocols
(802.11, 802.3ad, CARP), simply by trimming the list of sources in
the Makefile. This helps one customize ifconfig for an embedded
device or for install media, and it eliminates a lot of grotty
#ifdef'age. Now, the ifconfig syntax and semantics are finalized
at run-time using the constructor routines in each address-family/protocol
module.

(In principle, ifconfig could load virtually all of its syntax from
shared objects.)

Extract a lot of common code into subroutines, in order to shrink
the ifconfig binary a bit. Make all of the address families share
code for address addition/replacement/removal, and delete "legacy"
code for manipulating addresses. That may have broken atalk and
iso, despite my best efforts.

Extract an include file, Makefile.inc, containing the make-fu that
both ifconfig and x_ifconfig share.

Sprinkle static. Change some int's to bool's. Constify.

Add RCS Ids to carp.c and env.c. Move media code to a new file,
media.c. Delete several unneeded header files.

Set, reset, and display the IEEE 802.11 attribute, 'dot11RTSThreshold'.

Bug fix: do not require both a interface address and a destination
address for point-to-point interfaces, but accept a interface
address by itself.

Remove remnants of struct afswtch.af_getprefix().

branches: 1.4.2; 1.4.4;
Factor out common code, creating direct_ioctl() and indirect_ioctl()
for the two most prevalent styles of ioctl(2) calls in ifconfig(8).

branches: 1.3.2;
Use prop_dictionary_util(3) some more.

When we read interface flags and capabilities from the kernel, take
care not to record them in our current environment (env), but record
them in the output environment (oenv), instead. This helps us get
interface capabilities and flags right.

Rename in_addr_commit() to commit_address(), and refactor slightly
to support IPv6 as well as IPv4 (a work in progress).

Make the second argument of af_status() a bool instead of an int.

Exit early with an error if the operator specifies an unsupported
address family on the command line. The change should help rc
scripts to detect that IPv6 support is missing from the kernel,
with 'ifconfig lo0 inet6'.

Start using prop_dictionary_util(3).

Overhaul ifconfig. Use fewer global variables. Take a leap toward
improved modularity and extensibility.

In the new architecture, a directed graph of argument-matching
objects (match objects) expresses the set of feasible ifconfig
statements. Match objects are labelled by subroutines that provide
the statement semantics.

Many IPv4, IPv6, 802.11, tunnel, and media configurations have been
tested.

AppleTalk, ISO, carp(4), agr(4), and vlan(4) configuration need
testing.

-W seconds will wait for the detached flag to clear on addresses on
interfaces marked up to allow time for the carrier to appear on the
interface.

This does not extend the -w option duration.

Move the INET6 specific code for wait_dad_exec() into af_inet6
by using a new afswtch hook af_addr_tentative.

use the new scopeid functions

branches: 1.9.6; 1.9.12;
Add to the string parse object (pstr), and its constructors, a flag that
tells whether it should detect and convert to binary a hexadecimal octet
string of the form 0x0123ABab, or leave those strings undecoded.

If the argument for a 'media', 'mediamode', 'mediaopt', '-mediaopt',
'nwkey', or 'bssid' keyword is a hexadecimal octet string, do not detect
and decode it. (Note that setifnwkey decodes hexadecimal strings on its
own.)

This fixes a bug noticed by Jim Miller where the trailing zero-octets
were discarded from hexadecimal octet-string arguments for 'nwkey'.

Make ifconfig(8) set and display preference numbers for IPv6
addresses. Make the kernel support SIOC[SG]IFADDRPREF for IPv6
interface addresses.

In in6ifa_ifpforlinklocal(), consult preference numbers before
making an otherwise arbitrary choice of in6_ifaddr. Otherwise,
preference numbers are *not* consulted by the kernel, but that will
be rather easy for somebody with a little bit of free time to fix.

Please note that setting the preference number for a link-local
IPv6 address does not work right, yet, but that ought to be fixed
soon.

In support of the changes above,

1 Add a method to struct domain for "externalizing" a sockaddr, and
provide an implementation for IPv6. Expect more work in this area: it
may be more proper to say that the IPv6 implementation "internalizes"
a sockaddr. Add sockaddr_externalize().

2 Add a subroutine, sofamily(), that returns a struct socket's address
family or AF_UNSPEC.

3 Make a lot of IPv4-specific code generic, and move it from
sys/netinet/ to sys/net/ for re-use by IPv6 parts of the kernel and
ifconfig(8).

To make sure that we always print the active link-layer address in the
'address: ' field, don't treat the first address as the active address,
but search the link-layer addresses for the ones flagged IFLR_ACTIVE,
and print those. Extract a subroutine, print_link_addresses(), for
printing link-layer addresses.

branches: 1.6.2; 1.6.4; 1.6.8;
Let us add/remove features from ifconfig, such as support for
various address families (inet, inet6, iso, atalk) and protocols
(802.11, 802.3ad, CARP), simply by trimming the list of sources in
the Makefile. This helps one customize ifconfig for an embedded
device or for install media, and it eliminates a lot of grotty
#ifdef'age. Now, the ifconfig syntax and semantics are finalized
at run-time using the constructor routines in each address-family/protocol
module.

(In principle, ifconfig could load virtually all of its syntax from
shared objects.)

Extract a lot of common code into subroutines, in order to shrink
the ifconfig binary a bit. Make all of the address families share
code for address addition/replacement/removal, and delete "legacy"
code for manipulating addresses. That may have broken atalk and
iso, despite my best efforts.

Extract an include file, Makefile.inc, containing the make-fu that
both ifconfig and x_ifconfig share.

Sprinkle static. Change some int's to bool's. Constify.

Add RCS Ids to carp.c and env.c. Move media code to a new file,
media.c. Delete several unneeded header files.

Set, reset, and display the IEEE 802.11 attribute, 'dot11RTSThreshold'.

Bug fix: do not require both a interface address and a destination
address for point-to-point interfaces, but accept a interface
address by itself.

Remove remnants of struct afswtch.af_getprefix().

branches: 1.4.2; 1.4.4;
Factor out common code, creating direct_ioctl() and indirect_ioctl()
for the two most prevalent styles of ioctl(2) calls in ifconfig(8).

branches: 1.3.2;
Use prop_dictionary_util(3) some more.

When we read interface flags and capabilities from the kernel, take
care not to record them in our current environment (env), but record
them in the output environment (oenv), instead. This helps us get
interface capabilities and flags right.

Rename in_addr_commit() to commit_address(), and refactor slightly
to support IPv6 as well as IPv4 (a work in progress).

Make the second argument of af_status() a bool instead of an int.

Exit early with an error if the operator specifies an unsupported
address family on the command line. The change should help rc
scripts to detect that IPv6 support is missing from the kernel,
with 'ifconfig lo0 inet6'.

Start using prop_dictionary_util(3).

Overhaul ifconfig. Use fewer global variables. Take a leap toward
improved modularity and extensibility.

In the new architecture, a directed graph of argument-matching
objects (match objects) expresses the set of feasible ifconfig
statements. Match objects are labelled by subroutines that provide
the statement semantics.

Many IPv4, IPv6, 802.11, tunnel, and media configurations have been
tested.

AppleTalk, ISO, carp(4), agr(4), and vlan(4) configuration need
testing.