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ok claudio@
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use a local recv_buf that is allocated on first call with malloc().
The memory returned from malloc() is properly aligned which may not
be the case for bss or stack memory.
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into control.c
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being unlink(2)ed from the main proc so I removed "cpath" from the pledge(2) on
the ldpe proc but actually the socket was unlink(2)ed from here, this means the
daemon would crash on exit due to pledge(2) not having "cpath" permissions
anymore. Finish the job by just not deleting the socket at all during
control_cleanup(), which keeps the control program still working without issues
but more importantly prevents the crash during exit, sorry about that.
Crash reported by wlund at iki.fi
OK deraadt@ claudio@ remi@
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configuration file.", but occasionally something else fit better; at the
same time, try to make the format for FILES more consistent;
original diff from clematis
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manual pages that document the corresponding configuration files;
OK jmc@, and general direction discussed with many
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by LSR Id, since remote peer may change its LSR Id. diff from and
test by Vitaliy Guschin.
ok claudio
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main process can be unveiled to restrict filesystem access. In this case we can
restrict it to only read, although it must be the entire / since the daemon is
able to include config files from anywhere.
Additionally the ldpe process currently has cpath promise to unlink the socket,
nevertheless the socket is actually unlinked from the main proc so this
permission can be removed. As we discussed before, leaving the socket behind
doesn't do any harm that's why I didn't unveil it in the main proc.
OK deraadt@
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value < 0. errno is only updated in this case. Change all (most?)
callers of syscalls to follow this better, and let's see if this strictness
helps us in the future.
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(viz. hop-limit-sensitive discards). Older implementations are
known to violate it, as it was made mandatory only recently by
RFC7552 (2015), eight years after the original LDP specification.
ok claudio@
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descriptor keeps CLOEXEC flag then it will be closed unexpectedly by
exec().
ok tedu florian
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larger types really is a range reduction...
Almost any cast to (unsigned) is a bug.
ok millert tb benno
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this makes ldpd open the ioctl socket early so the config parser
can run the SIOCGPWE3 ioctl against the requested interface.
ok claudio@
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this way we do the inet_aton and bad address check in one place,
and just reuse it in the router-id, neighbor, and pseudowire bits.
ok claudio@
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previously ldpd only allowed tcp md5 to be configured against a
neighbor (by ldp router id), but other vendors supported configuring
tcp md5sig by prefix as well as neighbor. this reworks the config
so auth is maintained globally as a list of prefixes that you do
and do not want to do tcp md5sig auth with.
the config statements look more like what is in bgpd.conf now too.
an example of the new config for interoperating with my baby cisco
test network:
on ios:
mpls ldp password required for MPLS
mpls ldp password option 1 for MPLS key-chain LDPAUTH
key chain LDPAUTH
key 1
key-string secret
interface Loopback0
ip address 192.168.0.0 255.255.255.255
end
ip prefix-list MPLS seq 5 permit 192.168.0.0/24
ip access-list standard MPLS
mpls ldp router-id Loopback0 force
and in ldpd.conf:
router-id 192.168.0.25
tcp md5sig password secret 192.168.0.0/24
address-family ipv4 { interface vmx1 }
this still supports specifying tcp md5sig on neighbors, but that
is syntactic sugar around adding entries to the list of auths.
ok (and lots of help from) claudio@
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where the "wrong" #define was used.
ok dlg@
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the prefixlen is never bigger than 128 for inet6.
OK remi@
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(and other lexers too)
This commit rectifies earlier change:
in the lex... even inside quotes, a \ followed by space or tab should
expand to space or tab, and a \ followed by newline should be ignored
(as a line continuation). compatible with the needs of hoststated
(which has the most strict quoted string requirements), and ifstated
(where one commonly does line continuations in strings).
OK deraadt@, OK millert@
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"looks good" gilles@ halex@
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a password and that way it would log it when the daemon is ran in verbose mode.
Hint and OK claudio@
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out of memory log_warn(). i.e. ("%s", __func__) instead of manual
function names and redundant verbiage about which wrapper detected the
out of memory condition.
ok henning@
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calloc or strdup), we just need to log that we ran out of memory in a
particular function.
Recommended by florian@ and deraadt@
ok benno@ henning@ tb@
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use a more general text for the sections, and avoid the catchup issue
that was trying to document how many there were;
ok benno rob
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Thanks to otto@ for the initial diff.
OK benno@
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ok benno@
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the desync cases. OK benno@
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OK claudio@ jca@
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Use the macro from route(8) / ospf6d(8) since it works also with argument 0.
OK claudio@
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warn with the same severity. Switch log_warn() to LOG_ERR and keep
fatal() at LOG_CRIT.
OK reyk@ florian@
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RFC 4762 says that MAC address withdrawal messages can be used to
improve convergence time in VPLS networks. This patch makes ldpd send
MAC withdrawals whenever a non-pseudowire interface pertaining to a
VPLS goes down. The processing of received MAC withdrawals will be
implemented later.
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We were aborting the session upon receipt of MAC Address Withdrawal
messages. Now make the parser aware that optional TLVs are possible in
address messages.
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This patch per-se doesn't introduce any useful functionality, but prepares
the ground for new enhancements to ldpd (i.e. implementation of new RFCs
that make use of LDP capabilities).
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This was missing from our original RFC 4447 VPLS implementation. Now
ldpd understands group wildcards as mandated by the RFC, but we still
don't send them ourselves. I can't see any case in which sending a group
wildcard would be useful, but nonetheless this patch provides a function
called lde_send_labelwithdraw_pwid_wcard() which is ready to be used in
the future anytime we feel like it might be useful.
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Whenever we receive a Label Withdraw message with an optional Label
TLV, we should check if this label matches the label previously
received from this neighbor for this FEC. If they don't match then we
shouldn't uninstall the previous label from the kernel. This fixes a
misinterpretation from the "Receive Label Withdraw" algorithm described
in the A.1.5 section of RFC 5036.
Also, simplify the check of pending withdraws in lde_check_release()
and lde_check_release_wcard().
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Without this fix, any LDP speaker that doesn't implement RFC 4447 will
shut down the session upon receipt of a PWid Label Mapping (unless the
use of the PW-Status TLV is disabled via configuration).
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The Unknown TLV status code is reserved for cases where we don't know
how to process a given TLV and its Unknown TLV bit is not set.
In the case of Address Messages, the Address List TLV is mandatory and
should appear before any optional TLV in the message. If that doesn't
happen the correct status notification to send is "Missing Message
Parameters" (non-fatal error).
Also, add a missing htons when creating an Address List TLV. Since the
value of TLV_TYPE_ADDRLIST is 0x0101 this missing htons wasn't noticed
earlier.
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Be more clever and trigger the PDU SENT event inside send_notification()
when tcp->nbr is set. This way we can eliminate send_notification_nbr()
and always use send_notification() instead.
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OK claudio@
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This is required to run multiple instances of ldpd.
OK claudio@
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move daemon-local functions into new logmsg.c, and reduce
the (mostly whitespace) differences so that log.c's can be diffed easily.
removal of log_rtmsg() aproved by claudio@
ok claudio@ krw@
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TAILQ_FOREACH().
No intentional functional change.
ok reyk@
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