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In the handling of generic instructions, we used to always
test whether the instruction was 'too_old_compiler' and abort
loading with a special error message.
Refactor the code so that we only do test if we an error
has occurred. That will allow us to make the test more expensive
in the future, allowing us to customize error messages for certain
opcode without any cost in the successful case.
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'store_var' is always followed by 'next_arg'.
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'next_instr' is always followed by 'is_op'.
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Since the 'new_instr' instruction always occurs before the
'store_op' instruction, we can merge the instructions into one.
Also, there is no need to include the arity of the BEAM
instruction as an operand, since the arity can be looked up
based on the opcode.
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A 'call' instruction in the loader transformation language is
always followed by an 'end' instruction, so we can replace the
'call' instruction with a 'call_end' instruction.
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We don't need type constraints that essentially are assertions;
the wrong type will be detected and loading aborted when no specific
instruction can be found.
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If the left part of a transformation will always match, omit the
the 'try_me_else' and 'fail' instructions.
As part of this optimization, make it an error to have a
transformation that can never be reached because of a previous
transformation that will always match. (Remove one transformation
from ops.tab that was found to be unreachable.)
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This optimization will save some space (in the loader tables) and
some loading time.
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Fix the incorrect code that attempted to remove a single
'next_arg' instructions before 'next_instr'.
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It is more useful to have a helper function that can test for
any instruction.
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is_list/2 and other test instructions with a zero label was last
generated by the v1 BEAM compiler which was last supported in R6B.
Since BEAM modules produced by that compiler will be rejected with
a nice error message for other reasons (e.g. by the test for the
module_info/0,1 functions), retaining those transformations serves
no useful purpose.
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The hybrid-heap emulator is broken since R12, so there is no
need to keep those instructions.
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Ancient versions of BEAM compiler could generate move instruction with
the same source and destination registers, so the loader would optimize
away such instructions.
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* hb/kernel/fix_disk_log/OTP-9508:
Fix two minor disk_log bugs
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* anders/diameter/tls_over_tcp/OTP-9605:
Move init/end_per_suite into testcases
Skip tls testsuite if there's no openssl
Clarify that ssl must be started for TLS support
Add tls support at connection establishment
Add tls testsuite
Documentation updates
Close transport if tls is requested over sctp
Handle tls notification for tcp
Lift recursion in tcp message reception up the call chain
Add tls support to capabilities exchange
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* anders/diameter/testsuite_robustness/OTP-9619:
Make testsuites more robust in case of init failure
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* anders/diameter/eprotonosupport/OTP-9615:
gen_sctp:open/0-2 might return {error, eprotonosupport}
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* anders/diameter/doc_dependencies/OTP-9612:
Simplify depend.sed for better compatibility
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See ac2810603b7aaad24129fadf887d9e8deff31d2f.
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Previously error:badarg was raise if there was no underlying support
for SCTP. Handle both new and old failure until OTP-9239 is merged.
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In particular, move code out of init_per_suite since failure
causes end_per_suite to be skipped. Cleanup is simpler if both
init and cleanup happen as testcases.
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* sa/callback-attr:
Add callback specs into 'application' module in kernel
Add callback specs to tftp module following internet documentation
Add callback specs to inets_service module following possibly deprecated comments
Add '-callback' attributes in stdlib's behaviours
Update primary bootstrap
Update the documentation with information on the callback attribute
Automatically generate 'behaviour_info' function from '-callback' attributes
Add '-callback' attribute to language syntax
OTP-9621
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comments
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Replace the behaviour_info(callbacks) export in stdlib's behaviours with
-callback' attributes for all the callbacks.
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'behaviour_info(callbacks)' is a special function that is defined in a module
which describes a behaviour and returns a list of its callbacks.
This function is now automatically generated using the '-callback' specs. An
error is returned by lint if user defines both '-callback' attributes and the
behaviour_info/1 function. If no type info is needed for a callback use a
generic spec for it.
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Behaviours may define specs for their callbacks using the familiar spec syntax,
replacing the '-spec' keyword with '-callback'. Simple lint checks are performed
to ensure that no callbacks are defined twice and all types referred are
declared.
These attributes can be then used by tools to provide documentation to the
behaviour or find discrepancies in the callback definitions in the callback
module.
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Sed on Solaris doesn't remember matches after branching.
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Also update app testsuite to allow for "undefined" calls
from diameter_tcp to ssl.
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This is the method added in draft-ietf-dime-rfc3588bis, whereby
a TLS handshake immediately follows connection establishment and
CER/CEA is sent over the secured connection.
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RFC 3588 requires that a Diameter server support TLS but in
practise this seems to mean TLS over SCTP since there are limitations
with running over SCTP: see RFC 6083 (DTLS over SCTP), which is a
response to RFC 3436 (TLS over SCTP). The current RFC 3588 draft
acknowledges this by equating the Inband-Security-Id value TLS
with TLS/TCP and DTLS/SCTP but underlying support for DTLS is
still thin on the ground.
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If TLS has been configured on Inband-Security-Id then the transport
process receives a message from the peer_fsm process indicating
whether or not to upgrade to TLS.
The current draft of RFC 3588 deprecates (but retains for backwards
compatibility) the use of Inband-Security-Id for negotiating TLS,
adding the possibility of TLS having be negotiated before capabilities
exchange. This commit handles the deprecated case.
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When an initial message is received and TLS is a possibility, must
wait for a message from the peer process before either commencing
a handshake or receiving more messages.
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To upgrade a connection to TLS or not, that is the question. It
is possible for us to send a CER offering both NO_INBAND_SECURITY
and TLS and for the peer to answer likewise: RFC 3588 doesn't make
clear that a CEA should be unambiguous about the choice of security.
Thus, if TLS is offered then assume the server is prepared to
for a handshake. Similarly, when receiving a CER, choose TLS if
it's offered and be unambiguous about our choice in CEA. There is
no ssl:maybe_accept that would let us receive a handshake if it
comes or another message if it doesn't.
The choice of TLS should probably be made into a callback so that
an application can decide based on the peer's Origin-Realm for
example. Such a callback could also be used to reject a CER/CEA.
Handle Inband-Security-Id values other than NO_INBAND_SECURITY and
TLS by assuming that they require no intervention by the transport
module, treating them like NO_INBAND_SECURITY. Whether or not this
is reasonable (or useful) is unclear. There may be a need for more
sychronization than we have on offer. (Having to do something before
taking the connection up for example.)
Note that diameter_peer_fsm must be upgraded before diameter_capx
because of the new return value from diameter_capx:recv_CEA/2.
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* ia/ssl/remove-old-ssl/OTP-7048:
Remove old ssl implementation and deprecated function ssl:peercert/1
Conflicts:
lib/ssl/test/Makefile
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* ia/ssl/dist-more-tests:
Better option handling
Improve code structure
Remove ssl_prim calls that are remains from the old ssl distribution
Add payload test
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Also cleaned up old gaurds.
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* dev:
Prepare release
[ssl] Step version for patch 1178
Touch crypto to provoke patch release (again)
Prepare release
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Fake merge with "-s ours"
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