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triton: fix crash due gcc mis-optimization of alloca()
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since alloca() result is used indirectly, gcc 4.7.2 thinks
the whole call can be dropped on any optimization level.
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additional key when weights are equal
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new config options:
[ipoe]
weight=N - global weight
interface=ethX,weight=N - per-interface weight
How it works:
On reception of DHCPDISCOVER accel-ppp sends broadcast DHCP message to port 67 with same xid and add special vendor-specific option
where encodes its current session count multipled by weight.
On reception of such message accel-ppp searches session with same xid and compares weight.
If received weight is less than session's weight then it terminates this session.
per-interface weight=0 has special meaning as backup (fail-over) interface, f.e. it terminates session on any received weight.
By default weight based load balancing is disabled.
To enable need to specify global or/and per-interface weight.
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Introduced 4 priorities:
0 - management (cli)
1 - starting sessions (default priority)
2 - active sessions
3 - finishing sessions
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If prefix length is 128 then send RA with 64 prefix length and add point-to-point ipv6 address on interface
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If pool specified with /128 prefix length, then initialize intf_id by gw_ip6_address and peer_intf_id by generated pool address.
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ppp: fix interface rename if kernel returns not zero, but picked index
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config changes:
[ip-pool]
x.x.x.x/mask,name=pool1
y.y.y.y/mask,name=pool2,next=pool1
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chap-secrets: add pool name support
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Simplify previous commit, if 4th field isn't empty and doesn't
start with reserved chars (*-!), assume it as pool name.
Also, fix build warn without OPENSSL.
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ppp: implement per-ctrl ppp interface rename support
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Chap-secrets' ipdb uses 4th field as static peer ipv4 address. With no radius
and multiple same username sessions, it's impossible to use non-default pool
for such sessions.
Abuse chap-secret's 4th field as pool=name to specify session's pool name.
With ippool module loaded after chap-secrets (default order), it will be
used for allocation from the specified poll name.
Compatibility considerations:
* pppd will skip 'pool=*' with warn 'unknown host in auth. address list'
same as 5th field - shaper, because starting from 4th field pppd
parse list of value. so, no new effects here.
* previous versions of accel-ppp will parse 'pool=*' as empty address.
* with no 'pool=*' in chap-secrets or with no chap-secrets loaded, no
behavior change.
* with no ippool loaded, session will get no peer address.
* with ippool loaded before chap-secrets, chap-secrets's ipdb will not
be used, therefore neither ip addess not pool name will has no effect.
* if chap-secrets' pool is invalid or not found, default pool will be
used by ippool or address came from radius.
* chap-secret's pool name might override pool came from radius, if
radius module is loaded after chap-secrets and no address came from
radius.
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Reuse exsisting radius functionality and allow set iterface name
template for pppoe/pptp/l2tp, '%d' specification will be replaced
automagically to the next available index by kernel.
PPP interface rename allows to easy differ client's interfaces from
the other ppp ones, for example, with just netfilter interface rules.
Example:
[pptp]
ifname=pptp%d will produce pptp0, pptp1, ...
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pptp/l2tp: echo failure improvements
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l2tp: skip obsolete session data packets from logging
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With incoming l2tp hello there's no need to ask peer for
replies in configured hello-interval, so just postpone it.
Helps against false-positive echo failures with heavily
loaded channels and/or peers.
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With incoming pptp echo request there's no need to ask
peer for replies in configured echo-interval, so just
postpone it. Helps against false-positive echo failures
with heavily loaded channels and/or peers.
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