spelling fixes; from paul tagliamonte
any parts of his diff not taken are noted on tech

Relax the limitation of what is an acceptable unicast IP.

Remove the IN_BADCLASS() check which filters out the experimental IPv4
address space. Now there are no more experiments in IPv4 and so there
is less reason for these network daemons to deny such an IP.
Everything still disallows multicast IPs (224/4) and loopback (127/8)
a few also disallow 0/8 but this is not consistent.

In any case using 240/4 in production is a really bad idea but it is
not up to this software to prevent you from being a fool.

OK deraadt@ tb@

Be more strict in converting a netmask into a prefixlen. Make sure
the prefixlen is never bigger than 128 for inet6.
OK remi@

Add support for IPv6 (RFC 7552).

This includes:
* Full compliance to RFC 7552;
* Support for MD5 on LDPov6 sessions;
* Support for pseudowires over IPv6 LSPs (we're probably the world's
first implementation doing this);
* Support for the IPv6 explicit-null label;
* Knob to specify the prefered address-family for TCP transport
connections;
* Knob to use cisco non-compliant format to send and interpret the
Dual-Stack capability TLV.

Assorted fixes and small cleanup.

Nothing really interesting here.

Fix mess caused by my commit script.

I screwed up everything... trying to fix now.

Several improvements in the parsing of UDP/Hello packets.

* Fix check of the packet's size and the "PDU Length" field;
* Add check for the "Message Length" field;
* Check for invalid labelspace earlier.
* Use if_lookup() on disc_recv_iface() to reduce one level of identation;

Additionally, add the following safeguards:
* Check for unicast link hellos;
* Check for multicast targeted hellos;
* Validate packet's source address;
* Validate received transport-address.

Put the ancillary function bad_ip_addr() into a new file, util.c, which
will be used later for several other things.

Relax the limitation of what is an acceptable unicast IP.

Remove the IN_BADCLASS() check which filters out the experimental IPv4
address space. Now there are no more experiments in IPv4 and so there
is less reason for these network daemons to deny such an IP.
Everything still disallows multicast IPs (224/4) and loopback (127/8)
a few also disallow 0/8 but this is not consistent.

In any case using 240/4 in production is a really bad idea but it is
not up to this software to prevent you from being a fool.

OK deraadt@ tb@

Be more strict in converting a netmask into a prefixlen. Make sure
the prefixlen is never bigger than 128 for inet6.
OK remi@

Add support for IPv6 (RFC 7552).

This includes:
* Full compliance to RFC 7552;
* Support for MD5 on LDPov6 sessions;
* Support for pseudowires over IPv6 LSPs (we're probably the world's
first implementation doing this);
* Support for the IPv6 explicit-null label;
* Knob to specify the prefered address-family for TCP transport
connections;
* Knob to use cisco non-compliant format to send and interpret the
Dual-Stack capability TLV.

Assorted fixes and small cleanup.

Nothing really interesting here.

Fix mess caused by my commit script.

I screwed up everything... trying to fix now.

Several improvements in the parsing of UDP/Hello packets.

* Fix check of the packet's size and the "PDU Length" field;
* Add check for the "Message Length" field;
* Check for invalid labelspace earlier.
* Use if_lookup() on disc_recv_iface() to reduce one level of identation;

Additionally, add the following safeguards:
* Check for unicast link hellos;
* Check for multicast targeted hellos;
* Validate packet's source address;
* Validate received transport-address.

Put the ancillary function bad_ip_addr() into a new file, util.c, which
will be used later for several other things.

Be more strict in converting a netmask into a prefixlen. Make sure
the prefixlen is never bigger than 128 for inet6.
OK remi@

Add support for IPv6 (RFC 7552).

This includes:
* Full compliance to RFC 7552;
* Support for MD5 on LDPov6 sessions;
* Support for pseudowires over IPv6 LSPs (we're probably the world's
first implementation doing this);
* Support for the IPv6 explicit-null label;
* Knob to specify the prefered address-family for TCP transport
connections;
* Knob to use cisco non-compliant format to send and interpret the
Dual-Stack capability TLV.

Assorted fixes and small cleanup.

Nothing really interesting here.

Fix mess caused by my commit script.

I screwed up everything... trying to fix now.

Several improvements in the parsing of UDP/Hello packets.

* Fix check of the packet's size and the "PDU Length" field;
* Add check for the "Message Length" field;
* Check for invalid labelspace earlier.
* Use if_lookup() on disc_recv_iface() to reduce one level of identation;

Additionally, add the following safeguards:
* Check for unicast link hellos;
* Check for multicast targeted hellos;
* Validate packet's source address;
* Validate received transport-address.

Put the ancillary function bad_ip_addr() into a new file, util.c, which
will be used later for several other things.

Add support for IPv6 (RFC 7552).

This includes:
* Full compliance to RFC 7552;
* Support for MD5 on LDPov6 sessions;
* Support for pseudowires over IPv6 LSPs (we're probably the world's
first implementation doing this);
* Support for the IPv6 explicit-null label;
* Knob to specify the prefered address-family for TCP transport
connections;
* Knob to use cisco non-compliant format to send and interpret the
Dual-Stack capability TLV.

Assorted fixes and small cleanup.

Nothing really interesting here.

Fix mess caused by my commit script.

I screwed up everything... trying to fix now.

Several improvements in the parsing of UDP/Hello packets.

* Fix check of the packet's size and the "PDU Length" field;
* Add check for the "Message Length" field;
* Check for invalid labelspace earlier.
* Use if_lookup() on disc_recv_iface() to reduce one level of identation;

Additionally, add the following safeguards:
* Check for unicast link hellos;
* Check for multicast targeted hellos;
* Validate packet's source address;
* Validate received transport-address.

Put the ancillary function bad_ip_addr() into a new file, util.c, which
will be used later for several other things.