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argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@
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dhartmei ok
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- mask of vlan tag to ensure upper bit isn't present from hardware
- avoid mbuf leak on error
- make sure sizeof(ether_header) bytes are present in the firest mbuf
before passing it up to ether_input()
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Fix multicast bug; internal multicast members' list was not initialized
correctly. Also, begin to make vlan less ether specific - TR and FDDI
could also be supported.
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ok henning@, deraadt@
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this works better than what we have now, although i have not been
able to extensively test it. several folks thought it should be added
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header with the 802.1Q header. The reason for this is if_vlan is called
by the bridge (via if_start). It cannot modify the mbuf because it might
be shared copy.
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ok niklas@
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ok jason@, chris@, deraadt@
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LINK0 disappears; we now set IFCAP_VLAN_HWTAGGING at ifnet->if_capabilities
in the Ethernet driver for cards/drivers which support hardware tagging.
MTU ambiguity disppears; we now set IFCAP_VLAN_MTU in the Ethernet driver
when we know the chip will not truncate/discard vlan-sized frames.
Only allow the MTU to be changed within the scope of the parent interface's
MTU. (Here we also take into account IFCAP_VLAN_MTU)
Propagate hardware-assisted IP/TCP/UDP checksumming flags to the vlan interface
if the card supports hardware tagging (from NetBSD)
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the new model removes direct references to the fields in ifp->if_snd,
and defines the following macros to manipulate ifp->if_snd.
IFQ_ENQUEUE(ifq, m, pktattr, err)
IFQ_DEQUEUE(ifq, m)
IFQ_POLL(ifq, m)
IFQ_PURGE(ifq)
IFQ_IS_EMPTY(ifq)
the new model also enforces some rules regarding how to use these macros.
details are descrined in
http://www.csl.sony.co.jp/~kjc/software/altq-new-design.txt
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on how macros should be treated. Code by fgsch@, ok by me and itojun@
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- call ether_input_mbuf() instead of ether_input()
- most work done by fgsch
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and the tag doesn't match a child interface, reinsert the tag and call
ether_input() so that bridges can still function.
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shared mbuf clusters)
Revert the deleted m_adj() call in vlan_input() back to inline mbuf
manipulation, all of the checks really are there by API/convention.
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- change if_type to match parent at vlan_configure time
- comment typo
- implement promiscuous mode for vlan interfaces (from NetBSD)
- change if_flags inheritance mask to UP|BROADCAST|SIMPLE|MULTICAST
(upshot of all this: bridging vlan interfaces works, with some limitations...
documentation soon)
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use m_adj instead of twiddling everything ourselves
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define if_type for vlan interfaces (IFT_8021_VLAN)
#ifdef DEBUG some debugging printf's
protect against other uses of M_PROTO1
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not running and not up.
From NetBSD: move if_opackets to that it's incremented even if the parent
interface is oactive.
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SIOCSIFADDR/SIOCADDMULTI/SIOCDELMULTI until the vlan is configured, make
the loop at the top of vlan_input() easier to read
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as it replaces ether_output and ether_output does this...
(peter.jeremy@alcatel.com.au FreeBSD PR 20611)
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(already done in if.c) and modify comments
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