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Diffstat (limited to 'lib/ssh/doc/src/notes.xml')
| -rw-r--r-- | lib/ssh/doc/src/notes.xml | 480 |
1 files changed, 479 insertions, 1 deletions
diff --git a/lib/ssh/doc/src/notes.xml b/lib/ssh/doc/src/notes.xml index fd15c334a3..f93753f1d2 100644 --- a/lib/ssh/doc/src/notes.xml +++ b/lib/ssh/doc/src/notes.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2004</year><year>2016</year> + <year>2004</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -30,6 +30,468 @@ <file>notes.xml</file> </header> +<section><title>Ssh 4.5</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + The internal handling of SSH options is re-written.</p> + <p> + Previously there were no checks if a client option was + given to a daemon or vice versa. This is corrected now. + If your code has e.g. a client-only option in a call to + start a daemon, the call will fail.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-12872</p> + </item> + <item> + <p> + Modernization of key exchange algorithms. See + draft-ietf-curdle-ssh-kex-sha2 for a discussion.</p> + <p> + Removed an outdated weak algorithm and added stronger + replacements to keep interoperability with other modern + ssh clients and servers. The default ordering of the + algorithms is also adjusted.</p> + <p> + Retired: The nowadays unsecure key-exchange + <c>diffie-hellman-group1-sha1</c> is not enabled by + default, but can be enabled with the option + <c>preferred-algorithms</c>.</p> + <p> + Added: The new stronger key-exchange + <c>diffie-hellman-group16-sha512</c>, + <c>diffie-hellman-group18-sha512</c> and + <c>diffie-hellman-group14-sha256</c> are added and + enabled by default.</p> + <p> + The questionable [RFC 6194] sha1-based algorithms + <c>diffie-hellman-group-exchange-sha1</c> and + <c>diffie-hellman-group14-sha1</c> are however still kept + enabled by default for compatibility with ancient clients + and servers that lack modern key-exchange alternatives. + When the draft-ietf-curdle-ssh-kex-sha2 becomes an rfc, + those sha1-based algorithms and + <c>diffie-hellman-group1-sha1</c> will be deprecated by + IETF. They might then be removed from the default list in + Erlang/OTP.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14110</p> + </item> + <item> + <p> + Modernized internal representation of sftp by use of + maps.</p> + <p> + Own Id: OTP-14117</p> + </item> + <item> + <p> + The Extension Negotiation Mechanism and the extension + <c>server-sig-algs</c> in + draft-ietf-curdle-ssh-ext-info-05 are implemented.</p> + <p> + The related draft-ietf-curdle-rsa-sha2-05 is implemented + and introduces the signature algorithms + <c>rsa-sha2-256</c> and <c>rsa-sha2-512</c>.</p> + <p> + Own Id: OTP-14193</p> + </item> + <item> + <p> + The 'timeout' and 'connect_timeout' handling in + ssh_sftp:start_channel documentation is clarified.</p> + <p> + Own Id: OTP-14216</p> + </item> + <item> + <p> + The functions <c>ssh:connect</c>, <c>ssh:shell</c> and + <c>ssh:start_channel</c> now accept an IP-tuple as Host + destination argument.</p> + <p> + Own Id: OTP-14243</p> + </item> + <item> + <p> + The function <c>ssh:daemon_info/1</c> now returns Host + and Profile as well as the Port info in the property + list.</p> + <p> + Own Id: OTP-14259</p> + </item> + <item> + <p> + Removed the option <c>public_key_alg</c> which was + deprecated in 18.2. Use <c>pref_public_key_algs</c> + instead.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14263</p> + </item> + <item> + <p> + The SSH application is refactored regarding daemon + starting. The resolution of contradicting <c>Host</c> + argument and <c>ip</c> option were not described. There + were also strange corner cases when the <c>'any'</c> + value was used in <c>Host</c> argument or <c>ip</c> + option. This is (hopefully) resolved now, but it may + cause incompatibilities for code using both <c>Host</c> + and the <c>ip</c> option. The value 'loopback' has been + added for a correct way of naming those addresses.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14264</p> + </item> + <item> + <p> + The supervisor code is refactored. The naming of + listening IP-Port-Profile triples are slightly changed to + improve consistency in strange corner cases as resolved + by OTP-14264</p> + <p> + Own Id: OTP-14267 Aux Id: OTP-14266 </p> + </item> + <item> + <p> + The <c>idle_time</c> option can now be used in daemons.</p> + <p> + Own Id: OTP-14312</p> + </item> + <item> + <p> + Added test cases for IETF-CURDLE Extension Negotiation + (ext-info)</p> + <p> + Own Id: OTP-14361</p> + </item> + <item> + <p> + Testcases for IETF-CURDLE extension + <c>server-sig-algs</c> including <c>rsa-sha2-*</c></p> + <p> + Own Id: OTP-14362 Aux Id: OTP-14361 </p> + </item> + <item> + <p> + The option <c>auth_methods</c> can now also be used in + clients to select which authentication options that are + used and in which order.</p> + <p> + Own Id: OTP-14399</p> + </item> + <item> + <p> + Checks that a ECDSA public key (<c>ecdsa-sha2-nistp*</c>) + stored in a file has the correct size.</p> + <p> + Own Id: OTP-14410</p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.4.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + ssh:daemon_info/1 crashed if the listening IP was not + 'any'</p> + <p> + Own Id: OTP-14298 Aux Id: seq13294 </p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.4.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix bug when opening connections. If the tcp setup + failed, that would in some cases not result in an error + return value.</p> + <p> + Own Id: OTP-14108</p> + </item> + <item> + <p> + Reduce information leakage in case of decryption errors.</p> + <p> + Own Id: OTP-14109</p> + </item> + <item> + <p> + The key exchange algorithm + diffie-hellman-group-exchange-sha* has a server-option + <c>{dh_gex_limits,{Min,Max}}</c>. There was a hostkey + signature validation error on the client side if the + option was used and the <c>Min</c> or the <c>Max</c> + differed from the corresponding values obtained from the + client.</p> + <p> + This bug is now corrected.</p> + <p> + Own Id: OTP-14166</p> + </item> + <item> + <p> + The sftpd server now correctly uses <c>root_dir</c> and + <c>cwd</c> when resolving file paths if both are + provided. The <c>cwd</c> handling is also corrected.</p> + <p> + Thanks to kape1395!</p> + <p> + Own Id: OTP-14225 Aux Id: PR-1331, PR-1335 </p> + </item> + <item> + <p> + Ssh_cli used a function that does not handle non-utf8 + unicode correctly.</p> + <p> + Own Id: OTP-14230 Aux Id: ERL-364 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + The implementation of the key exchange algorithms + diffie-hellman-group-exchange-sha* are optimized, up to a + factor of 11 for the slowest ( = biggest and safest) + group size.</p> + <p> + Own Id: OTP-14169 Aux Id: seq-13261 </p> + </item> + <item> + <p> + The ssh host key fingerprint generation now also takes a + list of algorithms and returns a list of corresponding + fingerprints. See + <c>public_key:ssh_hostkey_fingerprint/2</c> and the + option <c>silently_accept_hosts</c> in + <c>ssh:connect</c>.</p> + <p> + Own Id: OTP-14223</p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A file read with an sftp client could loose data if the + packet_size is set to larger than 64k. This is corrected + now in such a way that the packet_size is silently + lowered if there is a risk for data loss.</p> + <p> + Own Id: OTP-13857 Aux Id: ERL-238, OTP-13858 </p> + </item> + <item> + <p> + When user defined SSH shell REPL process exits with + reason normal, the SSH channel callback module should + report successful exit status to the SSH client. This + provides simple way for SSH clients to check for + successful completion of executed commands. (Thanks to + isvilen)</p> + <p> + Own Id: OTP-13905 Aux Id: PR-1173 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Extended the option <c>silently_accept_hosts</c> for + <c>ssh:connect</c> to make it possible for the client to + check the SSH host key fingerprint string. Se the + reference manual for SSH.</p> + <p> + Own Id: OTP-13887 Aux Id: OTP-13888 </p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.3.6</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Re-negotiation problems with OpenSSH client solved.</p> + <p> + Own Id: OTP-13972</p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.3.5</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + If a client illegaly sends an info-line and then + immediatly closes the TCP-connection, a badmatch + exception was raised.</p> + <p> + Own Id: OTP-13966</p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.3.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Intermittent ssh ERROR REPORT mentioning + nonblocking_sender</p> + <p> + Own Id: OTP-13953 Aux Id: seq13199 </p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.3.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Handle all possible exit values that should be + interpreted as {error, closed}. Failing to do so could + lead to unexpected crashes for users of the ssh + application.</p> + <p> + Own Id: OTP-13932 Aux Id: seq13189 </p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Upgrade of an established client connection could crash + because the ssh client supervisors children had wrong + type. This is fixed now.</p> + <p> + Own Id: OTP-13782 Aux Id: seq13158 </p> + </item> + <item> + <p> + Partly checks the public key early in public key + authorization</p> + <p> + Own Id: OTP-13847 Aux Id: + defensics-ssh3.1.0-190243,205277,219318 </p> + </item> + <item> + <p> + Corrected handling of SHA for ECDSA (Elliptic curve + public keys)</p> + <p> + Own Id: OTP-13850 Aux Id: defensics-ssh3.1.0-214168 </p> + </item> + <item> + <p> + Problems found by test suites as well as by + Codenomicon/Defensics fixed: - reduce max random padding + to 15 bytes (Codenomicon/Defensics) - inclomplete pdu + handling (Codenomicon/Defensics) - badmatch in test suite + - non-blocking send fixes deadlock in + ssh_connection_SUITE:interrupted_send</p> + <p> + Own Id: OTP-13854</p> + </item> + <item> + <p> + Caller is now notified when a tcp close is received.</p> + <p> + Own Id: OTP-13859 Aux Id: seq13177 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Use application:ensure_all_started/2 instead of + hard-coding deps</p> + <p> + Own Id: OTP-13843 Aux Id: PR-1147 </p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + SSH client does not any longer retry a bad password given + as option to ssh:connect et al.</p> + <p> + Own Id: OTP-13674 Aux Id: TR-HU92273 </p> + </item> + <item> + <p> + Removed possible hanging risk for a certain timing + sequence when communicating client and server executes on + the same node.</p> + <p> + Own Id: OTP-13715</p> + </item> + </list> + </section> + +</section> + <section><title>Ssh 4.3</title> <section><title>Improvements and New Features</title> @@ -108,6 +570,22 @@ </section> +<section><title>Ssh 4.2.2.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + SSH client does not any longer retry a bad password given + as option to ssh:connect et al.</p> + <p> + Own Id: OTP-13674 Aux Id: TR-HU92273 </p> + </item> + </list> + </section> + +</section> + <section><title>Ssh 4.2.2</title> <section><title>Fixed Bugs and Malfunctions</title> |