Move input processing of lagg(4) before ether_input
to get rid of dependence.

This implementation is similar with that of bridge(4).

vlan: Register vlan_ifdetach to ether_ifdetach hook

bridge: Register bridge_ifdetach to ether_ifdetach hook

vlan: Register the callback to update link-state of vlan I/F
to link-state change hook

The callback is registered in every vlan I/F even if the parent
interface is the same. Therefore it is not needed to search the
vlan I/F by the parent interface unlike the previous callback.

lagg: Register lagg_linkstate_changed to link-state change hook

bridge: Register bridge_calc_link_state to link-state change hook

Rump-ify ALTQ (librumpnet_altq.so)

Add a new link-aggregation pseudo interface named lagg(4)

- FreeBSD's lagg(4) based implementation
- MP-safe and MP-scalable

branches: 1.41.4; 1.41.6;
PR/55777: Ruslan Nikolaev: Move the unp_sysctl_create to uipc_usrreq.c to
facilitate splitting rump modules and does not require a dummy function.

branches: 1.40.2;
rump: Add weak alias for bridge_calc_link_state

rump: Try to fix build

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

vlan: Register vlan_ifdetach to ether_ifdetach hook

bridge: Register bridge_ifdetach to ether_ifdetach hook

vlan: Register the callback to update link-state of vlan I/F
to link-state change hook

The callback is registered in every vlan I/F even if the parent
interface is the same. Therefore it is not needed to search the
vlan I/F by the parent interface unlike the previous callback.

lagg: Register lagg_linkstate_changed to link-state change hook

bridge: Register bridge_calc_link_state to link-state change hook

Rump-ify ALTQ (librumpnet_altq.so)

Add a new link-aggregation pseudo interface named lagg(4)

- FreeBSD's lagg(4) based implementation
- MP-safe and MP-scalable

branches: 1.41.4; 1.41.6;
PR/55777: Ruslan Nikolaev: Move the unp_sysctl_create to uipc_usrreq.c to
facilitate splitting rump modules and does not require a dummy function.

branches: 1.40.2;
rump: Add weak alias for bridge_calc_link_state

rump: Try to fix build

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

Rump-ify ALTQ (librumpnet_altq.so)

Add a new link-aggregation pseudo interface named lagg(4)

- FreeBSD's lagg(4) based implementation
- MP-safe and MP-scalable

branches: 1.41.4; 1.41.6;
PR/55777: Ruslan Nikolaev: Move the unp_sysctl_create to uipc_usrreq.c to
facilitate splitting rump modules and does not require a dummy function.

branches: 1.40.2;
rump: Add weak alias for bridge_calc_link_state

rump: Try to fix build

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

Add a new link-aggregation pseudo interface named lagg(4)

- FreeBSD's lagg(4) based implementation
- MP-safe and MP-scalable

PR/55777: Ruslan Nikolaev: Move the unp_sysctl_create to uipc_usrreq.c to
facilitate splitting rump modules and does not require a dummy function.

branches: 1.40.2;
rump: Add weak alias for bridge_calc_link_state

rump: Try to fix build

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

PR/55777: Ruslan Nikolaev: Move the unp_sysctl_create to uipc_usrreq.c to
facilitate splitting rump modules and does not require a dummy function.

rump: Add weak alias for bridge_calc_link_state

rump: Try to fix build

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

rump: Add weak alias for bridge_calc_link_state

rump: Try to fix build

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

ipsec: rename ipsec_ip_input to ipsec_ip_input_checkpolicy

Because it just checks if a packet passes security policies.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

branches: 1.36.2;
Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

PR kern/53562

Handle TX offload in software when a packet is sent via
bridge_output(). We can send it as is in the following
exceptional cases:

For unicast:

(1) When the destination interface is the same as source.

(2) When the destination supports all TX offload options
specified in a packet.

For multicast/broadcast:

(3) When all the members of the bridge support the specified
TX offload options.

For (3), add sc_csum_flags_tx flag to bridge softc, which is
logical AND b/w capabilities of TX offload options in member
interface (ifp->if_csum_flags_tx). The flag is updated when a
member is (i) added to or (ii) removed from a bridge, or (iii)
if_csum_flags_tx flag of a member interface is manipulated via
ifconfig(8).

Turn on M_CSUM_TSOv[46] bit in ifp->if_csum_flags_tx flag when
TSO[46] is enabled for that interface.

OK msaitoh thorpej

Merge ipsec4_input and ipsec6_input into ipsec_ip_input. Make the argument
a bool for clarity. Optimize the function: if M_CANFASTFWD is not there
(because already removed by the firewall) leave now.

Makes it easier to see that M_CANFASTFWD is not removed on IPv6.

Rename ipsec4_forward -> ipsec_mtu, and switch to void.

add an empty stub

Stop using a macro, rename the function to ipsec_init_pcbpolicy directly.

remove now unused crap.

branches: 1.31.2;
Dedup: merge ipsec4_set_policy and ipsec6_set_policy. The content of the
original ipsec_set_policy function is inlined into the new one.

Oops, forgot this file; I just merged two IPsec functions, so adapt
the rump stubs accordingly.

Dedup: merge ipsec4_in_reject and ipsec6_in_reject into ipsec_in_reject.
While here fix misleading comment.

ok ozaki-r@

Dedup: merge ipsec4_hdrsiz and ipsec6_hdrsiz into ipsec_hdrsiz.

ok ozaki-r@

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

branches: 1.26.4;
Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

Make IPsec SPD MP-safe

We use localcount(9), not psref(9), to make the sptree and secpolicy (SP)
entries MP-safe because SPs need to be referenced over opencrypto
processing that executes a callback in a different context.

SPs on sockets aren't managed by the sptree and can be destroyed in softint.
localcount_drain cannot be used in softint so we delay the destruction of
such SPs to a thread context. To do so, a list to manage such SPs is added
(key_socksplist) and key_timehandler_spd deletes dead SPs in the list.

For more details please read the locking notes in key.c.

Proposed on tech-kern@ and tech-net@

Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

Rumpify netipsec

Note that we should modularize netipsec and reduce reverse symbol references
(referencing symbols of netipsec from net, netinet and netinet6) though,
the task needs lots of code changes. Prior to doing so, rumpifying it and
having ATF tests should be useful.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

branches: 1.24.2;
Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.

Revert "Pull if_drain routine out of m_reclaim"

The commit broke dlopen()'d rumpnet on platforms where ld.so does not
override weak aliases (e.g. musl, Solaris, potentially OS X, ...).

Requested by pooka@.

branches: 1.19.2;
Pull if_drain routine out of m_reclaim

It's if-specific and should be in if.c.

No functional change.

Fix RUMP build.

don't invade the __toolchain namespace

Move a few stubs to where they really belong; allows us to create
them as strong instead of weak symbols.

kill weak aliases which are no longer necessary

branches: 1.14.2; 1.14.6;
Remove the route_info weak alias. It's unnecessary since 2011
and confused Linux ld.so, thus preventing dlopen() of librumpnet.
Reported in private email by Justin Cormack.

Also, g/c a few other stubs which are no longer necessary.

branches: 1.13.2;
Remove stubs which have been provided elsewhere for almost 2 years now.

branches: 1.12.4;
Add a new AF/PF_ROUTE which is 64-bit clean which makes the routing socket
interface (and its associated sysctls) act identically for both 32 and 64 bit
programs. The old unclean one remains for backward compatibility.

branches: 1.11.2; 1.11.4;
weak stubs for agr(4)

add weak stubs for bridge (not the game)

Don't alias the same symbol twice.

branches: 1.8.4; 1.8.8;
Add a few stubs to allow to compile - i'll have to sort these out later.

branches: 1.7.2;
Provide ifunit stub in the same place as others.

__weak_alias some more networking symbols for the benefit of the
nfs boot code in case not using the full networking stack.

__KERNEL_RCSID

branches: 1.4.2; 1.4.4;
...... except that the compat converter is actually supposed to convert
the ioctl, not return random garbage. It returning random garbage
causes an interface with an interesting netmask to get set and
hence a very interesting effect when you try to add a route for
your system.

All in all, a very healthy debugging session (if you're a vampire
or a wraith).

... except that compat_ifioctl() must know how to route the
commands further.

Add a few compat stubs. They shouldn't be required at all, but I
don't currently have the time to wage a holy war against how the
kernel decides it wants them.

Add the basic rump networking library, which provides e.g. sockets
and mbufs. This is required by all network-using rump applications.

Use if_acquire and if_release instead of using psref API directly

- Provide if_release for consistency to if_acquire
- Use if_acquire and if_release for ifp iterations
- Make ifnet_psref_class static

Rumpify vlan(4)

branches: 1.23.2;
Protect ifnet list with psz and psref

The change ensures that ifnet objects in the ifnet list aren't freed during
list iterations by using pserialize(9) and psref(9).

Note that the change adds a pslist(9) for ifnet but doesn't remove the
original ifnet list (ifnet_list) to avoid breaking kvm(3) users. We
shouldn't use the original list in the kernel anymore.

Rump-ify if_pppoe

From s-yamaguchi@IIJ

Get rid of weak_alias for bridge_input

bridge_input is now not directly called from ether_input,
so we can remove weak_alias for it.