Commit Graph

258 Commits

Author SHA1 Message Date
Andriy Voskoboinyk
d546378bd8 network.subr: avoid unnecessary reinitialization
Do not start interface when wpa_supplicant or hostapd is used;
they will restart it anyway

Tested with:
 * Intel 3945BG, STA mode (wpa_supplicant)
 * RTL8188EU, HOSTAP mode (hostapd)

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D5486
2016-02-29 20:21:54 +00:00
Gleb Smirnoff
7a79cebfba Replay r286410. Change KPI of how device drivers that provide wireless
connectivity interact with the net80211 stack.

Historical background: originally wireless devices created an interface,
just like Ethernet devices do. Name of an interface matched the name of
the driver that created. Later, wlan(4) layer was introduced, and the
wlanX interfaces become the actual interface, leaving original ones as
"a parent interface" of wlanX. Kernelwise, the KPI between net80211 layer
and a driver became a mix of methods that pass a pointer to struct ifnet
as identifier and methods that pass pointer to struct ieee80211com. From
user point of view, the parent interface just hangs on in the ifconfig
list, and user can't do anything useful with it.

Now, the struct ifnet goes away. The struct ieee80211com is the only
KPI between a device driver and net80211. Details:

- The struct ieee80211com is embedded into drivers softc.
- Packets are sent via new ic_transmit method, which is very much like
  the previous if_transmit.
- Bringing parent up/down is done via new ic_parent method, which notifies
  driver about any changes: number of wlan(4) interfaces, number of them
  in promisc or allmulti state.
- Device specific ioctls (if any) are received on new ic_ioctl method.
- Packets/errors accounting are done by the stack. In certain cases, when
  driver experiences errors and can not attribute them to any specific
  interface, driver updates ic_oerrors or ic_ierrors counters.

Details on interface configuration with new world order:
- A sequence of commands needed to bring up wireless DOESN"T change.
- /etc/rc.conf parameters DON'T change.
- List of devices that can be used to create wlan(4) interfaces is
  now provided by net.wlan.devices sysctl.

Most drivers in this change were converted by me, except of wpi(4),
that was done by Andriy Voskoboinyk. Big thanks to Kevin Lo for testing
changes to at least 8 drivers. Thanks to pluknet@, Oliver Hartmann,
Olivier Cochard, gjb@, mmoll@, op@ and lev@, who also participated in
testing.

Reviewed by:	adrian
Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2015-08-27 08:56:39 +00:00
Adrian Chadd
3bce836420 Commit more of the reversion of r286410 . Sorry. 2015-08-10 06:12:24 +00:00
Gleb Smirnoff
79d2c5e857 Change KPI of how device drivers that provide wireless connectivity interact
with the net80211 stack.

Historical background: originally wireless devices created an interface,
just like Ethernet devices do. Name of an interface matched the name of
the driver that created. Later, wlan(4) layer was introduced, and the
wlanX interfaces become the actual interface, leaving original ones as
"a parent interface" of wlanX. Kernelwise, the KPI between net80211 layer
and a driver became a mix of methods that pass a pointer to struct ifnet
as identifier and methods that pass pointer to struct ieee80211com. From
user point of view, the parent interface just hangs on in the ifconfig
list, and user can't do anything useful with it.

Now, the struct ifnet goes away. The struct ieee80211com is the only
KPI between a device driver and net80211. Details:

- The struct ieee80211com is embedded into drivers softc.
- Packets are sent via new ic_transmit method, which is very much like
  the previous if_transmit.
- Bringing parent up/down is done via new ic_parent method, which notifies
  driver about any changes: number of wlan(4) interfaces, number of them
  in promisc or allmulti state.
- Device specific ioctls (if any) are received on new ic_ioctl method.
- Packets/errors accounting are done by the stack. In certain cases, when
  driver experiences errors and can not attribute them to any specific
  interface, driver updates ic_oerrors or ic_ierrors counters.

Details on interface configuration with new world order:
- A sequence of commands needed to bring up wireless DOESN"T change.
- /etc/rc.conf parameters DON'T change.
- List of devices that can be used to create wlan(4) interfaces is
  now provided by net.wlan.devices sysctl.

Most drivers in this change were converted by me, except of wpi(4),
that was done by Andriy Voskoboinyk. Big thanks to Kevin Lo for testing
changes to at least 8 drivers. Thanks to Olivier Cochard, gjb@, mmoll@,
op@ and lev@, who also participated in testing. Details here:

https://wiki.freebsd.org/projects/ifnet/net80211

Still, drivers: ndis, wtap, mwl, ipw, bwn, wi, upgt, uath were not
tested. Changes to mwl, ipw, bwn, wi, upgt are trivial and chances
of problems are low. The wtap wasn't compilable even before this change.
But the ndis driver is complex, and it is likely to be broken with this
commit. Help with testing and debugging it is appreciated.

Differential Revision:	D2655, D2740
Sponsored by:	Nginx, Inc.
Sponsored by:	Netflix
2015-08-07 11:43:14 +00:00
Rui Paulo
70f82314c2 Fix a typo in ipv6_down().
We weren't skipping extraneous entries in the ifconfig | grep inet6 case.

Submitted by:	Ashutosh Kumar AK0037447 at TechMahindra.com
MFC after:	1 week
2015-02-18 03:46:43 +00:00
Alexander V. Chernikov
603eaf792b Renove faith(4) and faithd(8) from base. It looks like industry
have chosen different (and more traditional) stateless/statuful
NAT64 as translation mechanism. Last non-trivial commits to both
faith(4) and faithd(8) happened more than 12 years ago, so I assume
it is time to drop RFC3142 in FreeBSD.

No objections from:	net@
2014-11-09 21:33:01 +00:00
Hiroki Sato
15c7266a7f - Add $netif_ipexpand_max to specify the upper limit for the number of
addresses generated by an address range specification.  The default
  value is 2048.  This can be increased by setting $netif_ipexpand_max
  in rc.conf.

- Fix warning messages when an address range spec exceeds the upper limit.

PR:	186841
2014-09-11 12:30:29 +00:00
Hiroki Sato
39e04d7c8a Fix ifname normalization. ifconfig_IF_alias{es,N} did not work if ifname has
any of [.-/+].

Spotted by:	jhay
2014-06-24 04:37:36 +00:00
Hiroki Sato
4fd7abaa02 Fix address matching rule.
Reported by:	jase
2014-06-19 07:39:28 +00:00
Eygene Ryabinkin
6306643dfa Fix warning messages after r252015
$alias used to hold alias number, but now it carries full variable name,
so messages were tuned to account for that.

Other fixes:
 - eliminate unneeded double spaces;
 - tell user where inet/inet6 keywords are expected to be.
Reviewed by:	hrs
MFC after:	1 week
2014-05-20 19:55:59 +00:00
Hiroki Sato
0f52e3eb91 Fix an issue in range specification handling when a "-foo" is specified in
ifconfig_IF_aliasN.
2014-05-16 18:44:23 +00:00
Hiroki Sato
999ff616fd Move configuration of IPv6 NDP flags to a point before handling ifconfig_IF.
This fixes a race that a non-IPv4 interface can get an EUI64 LLA even if it
has IFDISABLED nd6 flag at boot time.
2014-05-16 14:48:21 +00:00
Devin Teske
99082d19f1 Loosen the processing of *_IF_aliasN vars to be less strict. Previously,
the first alias had to be _alias0 and processing stopped at the first non-
defined variable (preventing gaps). Allowing gaps gives the administrator
the ability to group aliases in an adhoc manner and also lifts the
requirement to renumber aliases simply to comment-out an existing one.
Aliases are processed in numerical ascending order.

Discussed on:	-rc
MFC after:	1 week
2014-04-07 22:40:29 +00:00
Gleb Smirnoff
2c284d9395 Remove IPX support.
IPX was a network transport protocol in Novell's NetWare network operating
system from late 80s and then 90s. The NetWare itself switched to TCP/IP
as default transport in 1998. Later, in this century the Novell Open
Enterprise Server became successor of Novell NetWare. The last release
that claimed to still support IPX was OES 2 in 2007. Routing equipment
vendors (e.g. Cisco) discontinued support for IPX in 2011.

Thus, IPX won't be supported in FreeBSD 11.0-RELEASE.
2014-03-14 02:58:48 +00:00
John Baldwin
25c58526a3 Revert r257715. This breaks the case where devd isn't running. The
real solution to this is still being discussed and probably won't look
quite like this.
2013-11-12 18:59:23 +00:00
John Baldwin
765f1c5ae7 Don't explicitly invoke ifn_start on new child interfaces (vaps and
subinterfaces) after they are created.  Interfaces are already started
by devd invoking /etc/pccard_ether when they are created, so the explicit
calls in childif_create() resulted in interfaces being started twice.

Note that interfaces created via cloned_interfaces are not explicitly
started but depend on the devd mechanism already.

MFC after:	1 week
2013-11-05 19:49:53 +00:00
Gleb Smirnoff
a7a36fea40 Remove more remnants of ng_fec(4).
The ng_create_one() and ng_mkpeer() functions in network.subr are
now not used anywhere, but I left them, since they can be useful
in future in netgraph scripting.

Submitted by:	pluknet
2013-10-28 16:21:31 +00:00
Hiroki Sato
a62939d37b Add support for "vnet jname" argument in ifconfig_IF. The vnet keyword
is ignored except for "rc.d/netif vnet{up,down} ifn" because a jail is
usually created after interface initialization on boot time.

"rc.d/netif vnetup ifn" moves ifn into the specified jail.  It is
designed to be used in other scripts like rc.d/jail, not automatically
invoked during the interface initialization.

Approved by:	re (kib)
2013-10-10 07:41:11 +00:00
Hiroki Sato
46232ce0ef Do not attempt to do AF-specific configurations on a interface when
noafif() is true.  The following warning message was displayed when
pflog0 interface existed, for example:

 ifconfig: ioctl(SIOCGIFINFO_IN6): Protocol family not supported

Reported by:	bz
Approved by:	re (gjb)
2013-10-04 04:15:18 +00:00
Hiroki Sato
a0871fdb49 Add epair(4) support in $cloned_interfaces. One should be specified
as "epair0" in $cloned_interfaces and "epair0[ab]" in the others in
rc.conf like the following:

 cloned_interfaces="epair0"
 ifconfig_epair0a="inet 192.168.1.1/24"
 ifconfig_epair0b="inet 192.168.2.1/24"

/etc/rc.d/netif now accepts both "netif start epair0" and "netif start
epair0a".

Approved by:	re (kib)
2013-10-04 02:44:04 +00:00
Hiroki Sato
cdb5fa57f9 Fix parsing lines of ifconfig output which include \t in the case of
inet and inet6.

Approved by:	re (delphij)
2013-09-17 20:22:24 +00:00
Alan Somers
2adf57829e Correctly remove an interface's ipv4 address when the user calls
"/etc/rc.d/netif stop XXX".  The old globbing pattern failed to account for the
possibility of a tab occuring before "inet".

Reviewed by:	will
Approved by:	ken (mentor, implicit)
MFC after:	Never (bug affects head only)
Sponsored by:	Spectra Logic
2013-08-23 23:12:16 +00:00
Hiroki Sato
7dce7544fc - Reimplement $gif_interfaces as a variant of $cloned_interfaces.
Newly-configured systems should use $cloned_interfaces.

- Call clone_{up,down}() and ifnet_rename() in rc.d/netif {start,stop}.
  ifnet_rename() now accepts an interface name list as its argument.

- Add rc.d/netif clear.  The "clear" subcommand is basically equivalent to
  "stop" but it does not call clone_down().

- Add "ifname:sticky" keyword into $cloned_interfaces.  If :sticky is
  specified, the interface will not be destroyed in rc.d/netif stop.

- Add cloned_interfaces_sticky={YES,NO}.  This variable globally sets
  :sticky keyword above for all interfaces.  The default value is NO.
  When cloned_interfaces_sticky=YES, :nosticky keyword can be used to
  override it on per interface basis.
2013-08-04 06:36:17 +00:00
Hiroki Sato
0d6d097a5f Do not set ND6_IFF_ACCEPT_RTADV on if_bridge(4) interfaces when
ipv6_enable=yes.

MFC after:	3 days
2013-07-21 15:26:25 +00:00
Hiroki Sato
fd1fba7ce3 Fix address range specification with ifconfig(8) options such as:
- inet 192.0.2.1-10 netmask 255.255.255.0 (inet range spec + ifconfig options)
- inet6 2001:db8:1::1-f prefixlen 60 (inet6 range spec + ifconfig options)

If prefixlen or netmask option is specified with CIDR notation at
the same time, the option is used.

Tested by:	Michael Grimm
MFC after:	3 days
2013-07-20 16:58:17 +00:00
Hiroki Sato
1c26ccaba0 - Fix a bug in ipv6_prefix_IF. It did not work with the 64-bit prefix
notation like 2001:db8:1:1.

- Use eui64 flag in ifconfig(8) instead of network6_getladdr()[*] for
  interface indentifier part.

Suggested by:	ume [*]
MFC after:	3 days
2013-07-18 02:58:24 +00:00
Hiroki Sato
b8c357fdca Add "ether" and "link" to ifconfig_alias{es,N}. 2013-06-30 19:52:45 +00:00
Xin LI
0094baf78c Don't attempt to do DHCP on certain interfaces, similar to what's done for
ipv6_autoconfif() in r212577.

MFC after:	1 week
2013-06-28 22:25:37 +00:00
Rui Paulo
6f79f29583 Implement ifconfig_wlanX="HOSTAP".
Not only this is a bit cleaner, it allows multiple instances of hostapd to be
running on the system host, useful for simultaneous dual-band WiFi.
This is similar to ifconfig_wlanX="WPA" but it uses /etc/hostapd-wlanX.conf.
Compatibility with hostapd_enable=YES/NO was kept.

Reviewed by:	adrian
2013-06-26 04:00:52 +00:00
Hiroki Sato
740b713999 - Add CIDR notation support like 192.168.1-2.10-16/24 to $ifconfig_IF_aliasN.
This is an extended version of ipv4_addr_IF which supports both IPv4 and
  IPv6, and multiple range specifications.  To avoid to generate too many
  addresses, the maximum number of the generated addresses is currently
  limited to 31.

- Add $ifconfig_IF_aliases, which accepts multiple IP aliases in a variable.

- ipv6_prefix_IF now supports !/64 prefix length.  In addition to the old
  64-bit format (2001:db8:1:1), a full 128-bit format like 2001:db8:1:1::/64
  is supported.

- Replace ifconfig command with $IFCONFIG_CMD variable to support
  a dry-run mode in the future.

- Remove IP aliases before removing all of IPv4 addresses when doing
  "rc.d/netif down".

- Add a DAD wait to network6_getladdr() because it is possible to fail to
  configure an EUI64 address when ipv6_prefix_IF is specified.

A summary of the supported ifconfig_* variables is as follows:

 # IPv4 configuration.
 ifconfig_em0="inet 192.168.0.1"
 # IPv6 configuration.
 ifconfig_em0_ipv6="inet6 2001:db8::1/64"
 # IPv4 address range spec.  Now deprecated.
 ipv4_addr_em0="10.2.1.1-10"
 # IPv6 alias.
 ifconfig_em0_alias0="inet6 2001:db8:5::1 prefixlen 70"
 # IPv4 alias.
 ifconfig_em0_alias1="inet 10.2.2.1/24"
 # IPv4 alias with range spec w/o AF keyword (backward compat).
 ifconfig_em0_alias2="10.3.1.1-10/32"
 # IPv6 alias with range spec.
 ifconfig_em0_alias3="inet6 2001:db8:20-2f::1/64"
 # ifconfig_IF_aliases is just like ifconfig_IF_aliasN.
 ifconfig_em0_aliases="inet 10.3.3.201-204/24 inet6 2001:db8:210-213::1/64 inet 10.1.1.1/24"
 # IPv6 alias (backward compat)
 ipv6_ifconfig_em0_alias0="inet6 2001:db8:f::1/64"
 # IPv6 alias w/o AF keyword (backward compat)
 ipv6_ifconfig_em0_alias1="2001:db8:f:1::1/64"
 # IPv6 prefix.
 ipv6_prefix_em0="2001:db8::/64"

Tested by:	Kimmo Paasiala
2013-06-20 02:29:49 +00:00
Hiroki Sato
274b8658fc Fix an issue when ipv6_enable=YES && ipv6_gateway_enable=YES which could
prevent rtadvd(8) from working as intended.

Spotted by:	brian
Discussed with:	brian
2012-10-27 17:06:26 +00:00
Hiroki Sato
f6e5ba31d2 Fix several glitches in IPv6-related knobs:
- ipv6_enable + ipv6_gateway_enable should unset ACCEPT_RTADV by default for
  backward compatibility.

- Configurations in ipv6_prefix_IF should be recognized even if there is no
  ifconfig_IF_ipv6.

- DAD wait should be performed at once, not on a per-interface basis, if
  possible.  This fixes an issue that a system with a lot of IPv6-capable
  interfaces takes too long for booting.

MFC after:	1 week
2012-01-22 10:57:32 +00:00
Ulrich Spörlein
081dc98788 Spelling fixes for etc/ 2012-01-07 16:10:32 +00:00
Gleb Smirnoff
84516ac070 Add compatibility support for specifing IPv4 aliases in
rc.conf without the "inet" keyword.

Obtained from:	hrs
2011-12-13 14:36:04 +00:00
Hiroki Sato
dec80d129b Add support for removing addresses added by ipv6_prefix_hostid_addr_up()
upon rc.d/netif stop.
2011-10-23 07:37:36 +00:00
Hiroki Sato
089ff57221 Fix an issue that 127/8 is not configured when $ifconfig_DEFAULT is not empty.
Spotted by:	ume
2011-10-23 05:56:59 +00:00
Xin LI
89b1da1ba2 Test if the interface is afif in dhcpif() and syncdhcpif(), as
done in ipv6_autoconfif.

Reviewed by:	hrs (freebsd-rc@)
MFC after:	1 week
2011-09-28 19:01:15 +00:00
Christian Brueffer
3ea459713b Minor spelling, wording and punctuation fixes in comments.
PR:		155984
Submitted by:	gcooper
Approved by:	re (kib)
MFC after:	1 week
2011-09-14 20:13:10 +00:00
Hiroki Sato
d4358e709f - Add an warning when ifconfig_IF_ipv6 has no inet6 keyword in front
of an IPv6 address. (r225489)

- Use eval for ${ifconfig_args} to fix an issue fixed in r223506. (r225489)

Approved by:	re (bz)
2011-09-13 00:09:47 +00:00
Hiroki Sato
049087a0f3 Add $ipv6_cpe_wanif to enable functionality required for IPv6 CPE
(r225485).  When setting an interface name to it, the following
configurations will be enabled:

 1. "no_radr" is set to all IPv6 interfaces automatically.

 2. "-no_radr accept_rtadv" will be set only for $ipv6_cpe_wanif.  This is
    done just before evaluating $ifconfig_IF_ipv6 in the rc.d scripts (this
    means you can manually supersede this configuration if necessary).

 3. The node will add RA-sending routers to the default router list
    even if net.inet6.ip6.forwarding=1.

This mode is added to conform to RFC 6204 (a router which connects
the end-user network to a service provider network).  To enable
packet forwarding, you still need to set ipv6_gateway_enable=YES.

Note that accepting router entries into the default router list when
packet forwarding capability and a routing daemon are enabled can
result in messing up the routing table.  To minimize such unexpected
behaviors, "no_radr" is set on all interfaces but $ipv6_cpe_wanif.

Approved by:	re (bz)
2011-09-13 00:06:11 +00:00
Sergey Kandaurov
f253603f0c Add support for string values with white spaces for ifconfig(8)
parameters accepting them (such as description, group).

Changes discussed on freebsd-rc.

PR:		conf/156675
Reported by:	"Alexander V. Chernikov" <melifaro att ipfw ru>
Suggested by:	hrs
Analyzed with:	Alexander V. Chernikov via IRC
MFC after:	2 weeks
2011-06-24 14:56:38 +00:00
Hiroki Sato
d3ae0231fe Add a helper function to check kern.features.* sysctls.
Discussed with:	dougb
2011-06-11 21:40:37 +00:00
Hiroki Sato
746b269075 Do not mark lo0 as IFDISABLED even if there is no $ifconfig_lo0_ipv6 line. 2011-06-06 11:36:10 +00:00
Hiroki Sato
73dda0356d Remove "ifconfig IF inet6 -accept_rtadv" when ipv6_gateway_enable=YES because
this is no longer needed.
2011-06-06 03:37:33 +00:00
Bjoern A. Zeeb
1dd53eaea3 No logner set an IPv4 loopback address by default in defaults/rc.conf.
If not specified, network.subr will add it automatically if we have
INET support (1).

In network.subr only call the address family up/down functions
if the respective AF is available.

Switch to new kern.features variables for inet and inet6 as the
inet sysctl tree is also available for IPv6-only kernels leading
to unexpected results.

Suggested by:	hrs (1)
Reviewed by:	hrs
Sponsored by:	The FreeBSD Foundation
Sponsored by:	iXsystems
MFC after:	20 days
2011-05-31 00:25:52 +00:00
Jilles Tjoelker
b1865d5303 network.subr: Use printf(1) builtin for hexprint function.
Now that printf(1) is a shell builtin, there is no need to emulate it
anymore. The external printf(1) is /usr/bin/printf and therefore may not be
available in early boot.

It may be faster to use printf directly but the function is useful for
compatibility.
2011-05-14 12:22:58 +00:00
Hiroki Sato
d3a8a8b9fa Split $ipv6_prefer into $ip6addrctl_policy and $ipv6_activate_all_interfaces.
The $ip6addrctl_policy is a variable to choose a pre-defined address
selection policy set by ip6addrctl(8).
The keyword "ipv4_prefer" sets IPv4-preferred one described in Section 10.3,
the keyword "ipv6_prefer" sets IPv6-preferred one in Section 2.1 in RFC 3484,
respectively.  When "AUTO" is specified, it attempts to read
/etc/ip6addrctl.conf first.  If it is found, it reads and installs it as
a policy table.  If not, either of the two pre-defined policy tables is
chosen automatically according to $ipv6_activate_all_interfaces.

When $ipv6_activate_all_interfaces=NO, interfaces which have no corresponding
$ifconfig_IF_ipv6 is marked as IFDISABLED for security reason.

The default values are ip6addrctl_policy=AUTO and
ipv6_activate_all_interfaces=NO.

Discussed with:	ume and bz
2010-09-13 19:55:40 +00:00
Hiroki Sato
95f15c1589 Localize $_punct_c in get_if_var() and whitespace clean-ups.
Based on:	changes in r206408 by dougb
2010-09-13 19:53:54 +00:00
Hiroki Sato
fa3b84643a - Check some specific IFs first in ipv6_autoconfif().
- $ipv6_enable supports YES|TRUE|ON|1 as in checkyesno().

Based on:	changes in r206408 by dougb
2010-09-13 19:53:22 +00:00
Hiroki Sato
e5481092bb Fix $ipv6_network_interfaces and set it as AUTO by default.
Based on:	changes in r206408 by dougb
2010-09-13 19:52:04 +00:00