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2015-03-24Merge branch 'anders/diameter/string_decode/OTP-11952' into maintAnders Svensson
* anders/diameter/string_decode/OTP-11952: Let examples override default service options Set {restrict_connections, false} in example server Set {string_decode, false} in examples Test {string_decode, false} in traffic suite Add service_opt() string_decode Strip potentially large terms when sending outgoing Diameter messages Improve language consistency in diameter(1)
2015-03-24Add service_opt() string_decodeAnders Svensson
To control whether stringish Diameter types are decoded to string or left as binary. The motivation is the same as in the parent commit: to avoid large strings being copied when incoming Diameter messages are passed between processes; or *if* in the case of messages destined for handle_request and handle_answer callbacks, since these are decoded in the dedicated processes that the callbacks take place in. It would be possible to do something about other messages without requiring an option, but disabling the decode is the most effective. The value is a boolean(), true being the default for backwards compatibility. Setting false causes both diameter_caps records and decoded messages to contain binary() in relevant places that previously had string(): diameter_app(3) callbacks need to be prepared for the change. The Diameter types affected are OctetString and the derived types that can contain arbitrarily large values: OctetString, UTF8String, DiameterIdentity, DiameterURI, IPFilterRule, and QoSFilterRule. Time and Address are unaffected. The DiameterURI decode has been redone using re(3), which both simplifies and does away with a vulnerability resulting from the conversion of arbitrary strings to atom. The solution continues the use and abuse of the process dictionary for encode/decode purposes, last seen in commit 0f9cdba.
2015-03-22Add transport_opt() dpa_timeoutAnders Svensson
To make the default DPA timeout configurable. The timeout say how many milliseconds to wait for DPA in response to an outgoing DPR before terminating the transport process regardless.
2014-01-16Don't format diameter_make:codec/2 errorsAnders Svensson
Instead, add diameter_make:format_error/1 to allow the caller to format if desired, which is what applications like compiler and yecc do. Use this to check that the expected error is the one actually generated in the compiler suite.
2013-12-02Merge branch 'anders/diameter/timer_confusion/OTP-11168' into maintAnders Svensson
* anders/diameter/timer_confusion/OTP-11168: Rename reconnect_timer -> connect_timer
2013-12-01Document diameter_make:format/1 and diameter_make:flatten/1Anders Svensson
2013-11-29Rename reconnect_timer -> connect_timerAnders Svensson
The former was misleading since the timer only applies to initial connection attempts, reconnection attempts being governed by watchdog_timer. The name is a historic remnant from a (dark, pre-OTP) time in which RFC 3539 was followed less slavishly than it is now, and the timer actually did apply to reconnection attempts. Note that connect_timer corresponds to RFC 6733 Tc, while watchdog_timer corresponds to RFC 3539 TwInit. The latter RFC makes clear that TwInit should apply to reconnection attempts. It's less clear if only RFC 6733 is read. Note also that reconnect_timer is still accepted for backwards compatibility. It would be possible to add an option to make reconnect_timer behave strictly as the name suggests (ie. ignore RFC 3539 and interpret RFC 6733 at face value; something that has some value for testing at least) but no such option is implemented in this commit.
2013-02-22Add RFC 6733 commentary to SoC chapterAnders Svensson
The commentary is not yet complete. It currently stops at chapter 4 of the RFC.
2013-01-23Minor documentation fixesAnders Svensson
2012-11-22Update doc for RFC 6733Anders Svensson
2012-11-22Add content to diameter_codec(3) and diameter_make(3)Anders Svensson
2012-11-18Fix broken doc linksAnders Svensson
2012-11-18Generate intra-document referencesAnders Svensson