More trivial syntax and logic cleanup.

Spotted by Clang. No functional change intended.

* Renamed the proprietary SIOC_* ioctls to B_SOCKET_* - no reason to pollute
global name space, and have ugly identifiers for nothing :-)
* Added a flags field to struct ifaliasreq. Added flags to mark an alias that
is currently being configured, or has been automatically configured.
Those flags aren't used yet, but they will replace IFF_CONFIGURING and
friends.
* Implemented deleting addresses only from interfaces via ifconfig.
* Added more command aliases for delete to ifconfig ("del", and "delete", for
more consistency with route).
* Fixed control_routes() to only release a reference to an address if it
actually got one before.
* If an interface address is deleted, its routes are now removed as well.
* InterfaceAddress now holds a reference to its interface as planned.
* Implemented removing interfaces. Works quite nicely.
* When downing an interface, all of its routes are now removed. When upping
it again, at least the default routes are added.
* datalink.cpp's get_interface_name_or_index() leaked a reference to the
interface found.
* SIOCAIFADDR would also leak a reference when new addresses were added.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37872 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Reworked the complete stack to allow more than one address per network
interface - this caused quite a number of changes.
* Network interfaces, and its addresses are now reference counted (not yet
complete, though, InterfaceAddresses need to hold references to their
interface as well).
* There are two known regressions of this commit that I will fix later:
- you cannot remove interfaces anymore
- IPv4 multicast was broken anyway, but now it's disabled, too.
* Moved a device_interfaces.cpp|h out of interfaces.cpp.
* The datalink layer chain is now instantiated per domain per interface,
not just per interface anymore.
* When a buffer reaches the network layer, it has no known interface yet, ie.
the ipv4|6|whatever modules need to set this manually.
* Added more debug output, and some new debugger commands, the control option
is now printed in clear text.
* Added hash_address() function to the address modules. Added "const" to
set_to_defaults() where needed.
* Fixed net_buffer's restore header functions offset use as reported by Atis.
* Improved buffer dump output, use the domain module to print the address if
available.
* Moved net_buffer::type into the union, as it's not needed by the upper layers
anymore.
* Moved IPv6 specific code from {add|remove}_default_route() to where it
belongs, but disabled it for the time being.
* Completely discarded useless ipv4_datagram module.
* Added ping6 to the build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37794 a95241bf-73f2-0310-859d-f6bbb57e9c96

* We need to invalidate all routes belonging to the interface when removing it.
* This fixes the second problem mentioned in bug #6243, and therefore the bug
itself.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37692 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29387 a95241bf-73f2-0310-859d-f6bbb57e9c96

* The net_domain's lock is now a recursive lock.
* Fixed all route locking problems, of which there were numerous
({add|remove}_route(), and list_routes() did not lock at all). Added
lock assertions in functions that don't do the locking themselves.
* A route will now be removed from the list in remove_route(), not in
put_route_internal(). Before, a route could easily be removed twice, causing
remove_route() to release references it did not own. This fixes bug #2706.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29386 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Actually implemented the SO_BINDTODEVICE socket option I added some time ago.
* This makes it possible to select a specific device, even if no interface
has been configured for it yet. To make it work, each interface now has a
private direct route which will be returned if a socket is bound to a device.
* This will be used for example in DHCP to make it work when more than one
adapter is attached.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27983 a95241bf-73f2-0310-859d-f6bbb57e9c96

moved address selection logic to a new 'get_buffer_route'.

- IPv4 now assumes the addresses it is supplied in send_routed_data are already the appropriate ones.
- made the Data(), operator* and operator-> methods in NetBufferFieldReader const so we can use them in the same expression as the constructor.
- fixed an issue with UDP where the wrong source address could be used in the calculating the checksum.
- changed ipv4_print_address to use the more common 0.0.0.0 format.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20660 a95241bf-73f2-0310-859d-f6bbb57e9c96

started some work to properly handle device_removed() and setting interfaces down in general.

- remove all routes that use interfaces going down.
- when a device is going down, remove associated domain interfaces.
- interfaces weren't getting a properly referenced device interface, fixed.
- down call down_device_interface when deleting a interface, instead set it down and let the upcounts do its job.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20600 a95241bf-73f2-0310-859d-f6bbb57e9c96

Support getting route information for a specific destination
using SIOCGETRT. Patch by Hugo Santos.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20494 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Completed the previous commit and merger of the team/network/new_stack branch.
* Removed ppp_up and pppcontrol from the image for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18457 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Renamed the proprietary SIOC_* ioctls to B_SOCKET_* - no reason to pollute
global name space, and have ugly identifiers for nothing :-)
* Added a flags field to struct ifaliasreq. Added flags to mark an alias that
is currently being configured, or has been automatically configured.
Those flags aren't used yet, but they will replace IFF_CONFIGURING and
friends.
* Implemented deleting addresses only from interfaces via ifconfig.
* Added more command aliases for delete to ifconfig ("del", and "delete", for
more consistency with route).
* Fixed control_routes() to only release a reference to an address if it
actually got one before.
* If an interface address is deleted, its routes are now removed as well.
* InterfaceAddress now holds a reference to its interface as planned.
* Implemented removing interfaces. Works quite nicely.
* When downing an interface, all of its routes are now removed. When upping
it again, at least the default routes are added.
* datalink.cpp's get_interface_name_or_index() leaked a reference to the
interface found.
* SIOCAIFADDR would also leak a reference when new addresses were added.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37872 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Reworked the complete stack to allow more than one address per network
interface - this caused quite a number of changes.
* Network interfaces, and its addresses are now reference counted (not yet
complete, though, InterfaceAddresses need to hold references to their
interface as well).
* There are two known regressions of this commit that I will fix later:
- you cannot remove interfaces anymore
- IPv4 multicast was broken anyway, but now it's disabled, too.
* Moved a device_interfaces.cpp|h out of interfaces.cpp.
* The datalink layer chain is now instantiated per domain per interface,
not just per interface anymore.
* When a buffer reaches the network layer, it has no known interface yet, ie.
the ipv4|6|whatever modules need to set this manually.
* Added more debug output, and some new debugger commands, the control option
is now printed in clear text.
* Added hash_address() function to the address modules. Added "const" to
set_to_defaults() where needed.
* Fixed net_buffer's restore header functions offset use as reported by Atis.
* Improved buffer dump output, use the domain module to print the address if
available.
* Moved net_buffer::type into the union, as it's not needed by the upper layers
anymore.
* Moved IPv6 specific code from {add|remove}_default_route() to where it
belongs, but disabled it for the time being.
* Completely discarded useless ipv4_datagram module.
* Added ping6 to the build.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37794 a95241bf-73f2-0310-859d-f6bbb57e9c96

* We need to invalidate all routes belonging to the interface when removing it.
* This fixes the second problem mentioned in bug #6243, and therefore the bug
itself.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37692 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29387 a95241bf-73f2-0310-859d-f6bbb57e9c96

* The net_domain's lock is now a recursive lock.
* Fixed all route locking problems, of which there were numerous
({add|remove}_route(), and list_routes() did not lock at all). Added
lock assertions in functions that don't do the locking themselves.
* A route will now be removed from the list in remove_route(), not in
put_route_internal(). Before, a route could easily be removed twice, causing
remove_route() to release references it did not own. This fixes bug #2706.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29386 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Actually implemented the SO_BINDTODEVICE socket option I added some time ago.
* This makes it possible to select a specific device, even if no interface
has been configured for it yet. To make it work, each interface now has a
private direct route which will be returned if a socket is bound to a device.
* This will be used for example in DHCP to make it work when more than one
adapter is attached.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27983 a95241bf-73f2-0310-859d-f6bbb57e9c96

moved address selection logic to a new 'get_buffer_route'.

- IPv4 now assumes the addresses it is supplied in send_routed_data are already the appropriate ones.
- made the Data(), operator* and operator-> methods in NetBufferFieldReader const so we can use them in the same expression as the constructor.
- fixed an issue with UDP where the wrong source address could be used in the calculating the checksum.
- changed ipv4_print_address to use the more common 0.0.0.0 format.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20660 a95241bf-73f2-0310-859d-f6bbb57e9c96

started some work to properly handle device_removed() and setting interfaces down in general.

- remove all routes that use interfaces going down.
- when a device is going down, remove associated domain interfaces.
- interfaces weren't getting a properly referenced device interface, fixed.
- down call down_device_interface when deleting a interface, instead set it down and let the upcounts do its job.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20600 a95241bf-73f2-0310-859d-f6bbb57e9c96

Support getting route information for a specific destination
using SIOCGETRT. Patch by Hugo Santos.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20494 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Completed the previous commit and merger of the team/network/new_stack branch.
* Removed ppp_up and pppcontrol from the image for now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18457 a95241bf-73f2-0310-859d-f6bbb57e9c96