src/sys/net/if_tapvar.h, branch upstream/11.0.0

Revert part of an earlier patch attempt that snuck in with r240938.

2012-09-25T23:41:45Z

Avoid INVARIANTS panic destroying an in-use tap(4)

2012-09-25T22:10:14Z

The requirement (implied by the KASSERT in tap_destroy) that the tap is closed isn't valid; destroy_dev will block in devdrn while other threads are in d_* functions. Note: if_tun had the same issue, addressed in SVN revisions r186391, r186483 and r186497. The use of the condvar there appears to be redundant with the functionality provided by destroy_dev. Sponsored by: ADARA Networks Reviewed by: dwhite MFC after: 2 weeks

Stop embedding struct ifnet at the top of driver softcs. Instead the

2005-06-10T16:49:24Z

struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam

/* -> /*- for license, minor formatting changes

2005-01-07T01:45:51Z

Do the dreaded s/dev_t/struct cdev */

2004-06-16T09:47:26Z

Bump __FreeBSD_version accordingly.

Add tap_mtx to tap_softc in order to protect per-softc variables

2004-03-17T01:09:59Z

(tap_pid, tap_flags). if_tap should now be entirely MPSAFE. Committed from: Bamboo house by ocean in Taiwan Tropical paradise provided by: Chia-liang Kao

Remove stale (unused) unit variables from if_tun and if_tap softc's.

2004-03-13T05:51:06Z

Device megapatch 2/6:

2004-02-21T20:29:52Z

This commit adds a couple of functions for pseudodrivers to use for implementing cloning in a manner we will be able to lock down (shortly). Basically what happens is that pseudo drivers get a way to ask for "give me the dev_t with this unit number" or alternatively "give me a dev_t with the lowest guaranteed free unit number" (there is unfortunately a lot of non-POLA in the exact numeric value of this number, just live with it for now) Managing the unit number space this way removes the need to use rman(9) to do so in the drivers this greatly simplifies the code in the drivers because even using rman(9) they still needed to manage their dev_t's anyway. I have taken the if_tun, if_tap, snp and nmdm drivers through the mill, partly because they (ab)used makedev(), but mostly because together they represent three different problems for device-cloning: if_tun and snp is the plain case: just give me a device. if_tap has two kinds of devices, with a flag for device type. nmdm has paired devices (ala pty) can you can clone either of them.

Add cloning support for the tap(4) device similar to that in the tun(4)

2001-09-05T01:06:21Z

device. Submitted by: Maksim Yevmenkin

Change to support vmware... SIOCSIFADDR on the character device

2000-07-25T23:50:30Z

sets the (notional) "remote" ethernet address. Submitted by: vsilyaev@mindspring.com