diff options
Diffstat (limited to 'lib/kernel')
-rw-r--r-- | lib/kernel/doc/src/code.xml | 2 | ||||
-rw-r--r-- | lib/kernel/doc/src/file.xml | 2 | ||||
-rw-r--r-- | lib/kernel/doc/src/gen_sctp.xml | 2 | ||||
-rw-r--r-- | lib/kernel/internal_doc/distribution_handshake.txt | 40 | ||||
-rw-r--r-- | lib/kernel/src/auth.erl | 6 | ||||
-rw-r--r-- | lib/kernel/src/code.erl | 18 | ||||
-rw-r--r-- | lib/kernel/test/code_SUITE.erl | 32 | ||||
-rw-r--r-- | lib/kernel/test/gen_udp_SUITE.erl | 21 | ||||
-rw-r--r-- | lib/kernel/vsn.mk | 2 |
9 files changed, 96 insertions, 29 deletions
diff --git a/lib/kernel/doc/src/code.xml b/lib/kernel/doc/src/code.xml index 19e1d3221c..b8db509fa8 100644 --- a/lib/kernel/doc/src/code.xml +++ b/lib/kernel/doc/src/code.xml @@ -54,7 +54,7 @@ for and tries to load the module.</p> </item> </list> - <p>To prevent accidentaly reloading modules affecting the Erlang + <p>To prevent accidentally reloading modules affecting the Erlang runtime system itself, the <c>kernel</c>, <c>stdlib</c> and <c>compiler</c> directories are considered <em>sticky</em>. This means that the system issues a warning and rejects the request if diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml index a9ceac0bcf..2044b074ee 100644 --- a/lib/kernel/doc/src/file.xml +++ b/lib/kernel/doc/src/file.xml @@ -1229,7 +1229,7 @@ f.txt: {person, "kalle", 25}. </item> <tag><c>{no_translation, unicode, latin1}</c></tag> <item> - <p>The file is was opened with another <c>encoding</c> than <c>latin1</c> and the data on the file can not be translated to the byte-oriented data that this function returns.</p> + <p>The file was opened with another <c>encoding</c> than <c>latin1</c> and the data in the file can not be translated to the byte-oriented data that this function returns.</p> </item> </taglist> </desc> diff --git a/lib/kernel/doc/src/gen_sctp.xml b/lib/kernel/doc/src/gen_sctp.xml index 3a8011e28b..fb09092f1c 100644 --- a/lib/kernel/doc/src/gen_sctp.xml +++ b/lib/kernel/doc/src/gen_sctp.xml @@ -1173,7 +1173,7 @@ client_loop(S, Peer1, Port1, AssocId1, Peer2, Port2, AssocId2) -> <title>SEE ALSO</title> <p><seealso marker="inet">inet(3)</seealso>, <seealso marker="gen_tcp">gen_tcp(3)</seealso>, - <seealso marker="gen_udp">gen_upd(3)</seealso>, + <seealso marker="gen_udp">gen_udp(3)</seealso>, <url href="http://www.rfc-archive.org/getrfc.php?rfc=2960">RFC2960</url> (Stream Control Transmission Protocol), <url href="http://tools.ietf.org/html/draft-ietf-tsvwg-sctpsocket-13">Sockets API Extensions for SCTP.</url></p> <marker id="authors"></marker> diff --git a/lib/kernel/internal_doc/distribution_handshake.txt b/lib/kernel/internal_doc/distribution_handshake.txt index f64ebe0302..6a3ee22ed3 100644 --- a/lib/kernel/internal_doc/distribution_handshake.txt +++ b/lib/kernel/internal_doc/distribution_handshake.txt @@ -11,7 +11,7 @@ The TCP/IP distribution uses a handshake which expects a connection based protocol, i.e. the protocol does not include any authentication after the handshake procedure. -This is not entirelly safe, as it is vulnerable against takeover +This is not entirely safe, as it is vulnerable against takeover attacks, but it is a tradeoff between fair safety and performance. The cookies are never sent in cleartext and the handshake procedure @@ -23,7 +23,7 @@ random numbers. DEFINITIONS ----------- -A challenge is a 32 bit integer number in big endian. Below the function +A challenge is a 32 bit integer number in big endian order. Below the function gen_challenge() returns a random 32 bit integer used as a challenge. A digest is a (16 bytes) MD5 hash of [the Challenge (as text) concatenated @@ -46,19 +46,19 @@ The cookies are text strings that can be viewed as passwords. Every message in the handshake starts with a 16 bit big endian integer which contains the length of the message (not counting the two initial bytes). In erlang this corresponds to the gen_tcp option {packet, 2}. Note that after -the handshake, the distribution switches to 4 byte backet headers. +the handshake, the distribution switches to 4 byte packet headers. THE HANDSHAKE IN DETAIL ----------------------- -Imagine two nodes, node A, which initiates the handshake and node B, whitch +Imagine two nodes, node A, which initiates the handshake and node B, which accepts the connection. 1) connect/accept: A connects to B via TCP/IP and B accepts the connection. 2) send_name/receive_name: A sends an initial identification to B. B receives the message. The message looks -like this (every "square" beeing one byte and the packet header removed): +like this (every "square" being one byte and the packet header removed): +---+--------+--------+-----+-----+-----+-----+-----+-----+-...-+-----+ |'n'|Version0|Version1|Flag0|Flag1|Flag2|Flag3|Name0|Name1| ... |NameN| @@ -67,7 +67,7 @@ like this (every "square" beeing one byte and the packet header removed): The 'n' is just a message tag, Version0 & Version1 is the distribution version selected by node A, based on information from EPMD. (16 bit big endian) -Flag0 ... Flag3 is capability flags, the capabilities defined in dist.hrl. +Flag0 ... Flag3 are capability flags, the capabilities defined in dist.hrl. (32 bit big endian) Name0 ... NameN is the full nodename of A, as a string of bytes (the packet length denotes how long it is). @@ -91,9 +91,9 @@ alive: A connection to the node is already active, which either means This is the format of the status message: -+---+-------+-------+ ... +-------+ ++---+-------+-------+-...-+-------+ |'s'|Status0|Status1| ... |StatusN| -+---+-------+-------+ ... +-------+ ++---+-------+-------+-...-+-------+ 's' is the message tag Status0 ... StatusN is the status as a string (not terminated) @@ -111,35 +111,35 @@ initially sent from A to B, with the addition of a 32 bit challenge: +---+--------+--------+-----+-----+-----+-----+-----+-----+-----+-----+--- |'n'|Version0|Version1|Flag0|Flag1|Flag2|Flag3|Chal0|Chal1|Chal2|Chal3| -+---+--------+--------+-----+-----+-----+-----+-----+-----+---- +-----+--- ++---+--------+--------+-----+-----+-----+-----+-----+-----+-----+-----+--- ------+-----+-...-+-----+ Name0|Name1| ... |NameN| ------+-----+-... +-----+ -Where Chal0 ... Chal3 is the challenge as a 32 bit biog endian integer +Where Chal0 ... Chal3 is the challenge as a 32 bit big endian integer and the other fields are B's version, flags and full nodename. 5) send_challenge_reply/recv_challenge_reply: Now A has generated -a digest and it's own challenge. Those are sent together in a package +a digest and its own challenge. Those are sent together in a package to B: -+---+-----+-----+-----+-----+-----+-----+-----+-----+ -|'r'|Chal0|Chal1|Chal2|Chal3|Dige0|Dige1|Dige2|Dige3| -+---+-----+-----+-----+-----+-----+-----+---- +-----+ ++---+-----+-----+-----+-----+-----+-----+-----+-----+-...-+------+ +|'r'|Chal0|Chal1|Chal2|Chal3|Dige0|Dige1|Dige2|Dige3| ... |Dige15| ++---+-----+-----+-----+-----+-----+-----+-----+-----+-...-+------+ Where 'r' is the tag, Chal0 ... Chal3 is A's challenge for B to handle and -Dige0 ... Dige3 is the digest that A constructed from the challenge B sent +Dige0 ... Dige15 is the digest that A constructed from the challenge B sent in the previous step. 6) recv_challenge_ack/send_challenge_ack: B checks that the digest received from A is correct and generates a digest from the challenge received from A. The digest is then sent to A. The message looks like this: -+---+-----+-----+-----+-----+ -|'a'|Dige0|Dige1|Dige2|Dige3| -+---+-----+-----+---- +-----+ ++---+-----+-----+-----+-----+-...-+------+ +|'a'|Dige0|Dige1|Dige2|Dige3| ... |Dige15| ++---+-----+-----+-----+-----+-...-+------+ -Where 'a' is the tag and Dige0 ... Dige3 is the digest calculated by B +Where 'a' is the tag and Dige0 ... Dige15 is the digest calculated by B for A's challenge. 7) A checks the digest from B and the connection is up. @@ -206,7 +206,7 @@ Currently the following capability flags are defined: %% The node implements distributed process monitoring. -define(DFLAG_DIST_MONITOR,8). -%% The node uses separate tag for fun's (labmdas) in the distribution protocol. +%% The node uses separate tag for fun's (lambdas) in the distribution protocol. -define(DFLAG_FUN_TAGS,16). An R6 erlang node implements all of the above, while a C or Java node only diff --git a/lib/kernel/src/auth.erl b/lib/kernel/src/auth.erl index 7fe30ae828..5c7fe2421d 100644 --- a/lib/kernel/src/auth.erl +++ b/lib/kernel/src/auth.erl @@ -50,6 +50,8 @@ %% Exported functions %%---------------------------------------------------------------------- +-spec start_link() -> {'ok',pid()} | {'error', term()} | 'ignore'. + start_link() -> gen_server:start_link({local, auth}, auth, [], []). @@ -134,7 +136,9 @@ init([]) -> %% The net kernel will let all message to the auth server %% through as is --type calls() :: 'echo' | 'sync_cookie' | {'set_cookie', node(), term()}. +-type calls() :: 'echo' | 'sync_cookie' + | {'get_cookie', node()} + | {'set_cookie', node(), term()}. -spec handle_call(calls(), {pid(), term()}, state()) -> {'reply', 'hello' | 'true' | 'nocookie' | cookie(), state()}. diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl index 42d4818f08..ec256d5806 100644 --- a/lib/kernel/src/code.erl +++ b/lib/kernel/src/code.erl @@ -304,6 +304,8 @@ do_start(Flags) -> true -> ok end, + % Quietly load the native code for all modules loaded so far. + catch load_native_code_for_all_loaded(), Ok2; Other -> Other @@ -496,3 +498,19 @@ has_ext(Ext, Extlen,File) -> to_path(X) -> filename:join(packages:split(X)). + +-spec load_native_code_for_all_loaded() -> ok. +load_native_code_for_all_loaded() -> + Architecture = erlang:system_info(hipe_architecture), + ChunkName = hipe_unified_loader:chunk_name(Architecture), + lists:foreach(fun({Module, BeamFilename}) -> + case code:is_module_native(Module) of + false -> + case beam_lib:chunks(BeamFilename, [ChunkName]) of + {ok,{_,[{_,Bin}]}} when is_binary(Bin) -> + load_native_partial(Module, Bin); + {error, beam_lib, _} -> ok + end; + true -> ok + end + end, all_loaded()). diff --git a/lib/kernel/test/code_SUITE.erl b/lib/kernel/test/code_SUITE.erl index 08b6477c9d..c9437df258 100644 --- a/lib/kernel/test/code_SUITE.erl +++ b/lib/kernel/test/code_SUITE.erl @@ -31,7 +31,7 @@ where_is_file_cached/1, where_is_file_no_cache/1, purge_stacktrace/1, mult_lib_roots/1, bad_erl_libs/1, code_archive/1, code_archive2/1, on_load/1, - on_load_embedded/1, on_load_errors/1]). + on_load_embedded/1, on_load_errors/1, native_early_modules/1]). -export([init_per_testcase/2, fin_per_testcase/2, init_per_suite/1, end_per_suite/1, @@ -53,7 +53,7 @@ all(suite) -> where_is_file_no_cache, where_is_file_cached, purge_stacktrace, mult_lib_roots, bad_erl_libs, code_archive, code_archive2, on_load, on_load_embedded, - on_load_errors]. + on_load_errors, native_early_modules]. init_per_suite(Config) -> %% The compiler will no longer create a Beam file if @@ -1333,6 +1333,34 @@ do_on_load_error(ReturnValue) -> ?line {undef,[{on_load_error,main,[]}|_]} = Exit end. +native_early_modules(suite) -> []; +native_early_modules(doc) -> ["Test that the native code of early loaded modules is loaded"]; +native_early_modules(Config) when is_list(Config) -> + case erlang:system_info(hipe_architecture) of + undefined -> + {skip,"Native code support is not enabled"}; + Architecture -> + native_early_modules_1(Architecture) + end. + +native_early_modules_1(Architecture) -> + ?line {lists, ListsBinary, _ListsFilename} = code:get_object_code(lists), + ?line ChunkName = hipe_unified_loader:chunk_name(Architecture), + ?line NativeChunk = beam_lib:chunks(ListsBinary, [ChunkName]), + ?line IsHipeCompiled = case NativeChunk of + {ok,{_,[{_,Bin}]}} when is_binary(Bin) -> true; + {error, beam_lib, _} -> false + end, + case IsHipeCompiled of + false -> + {skip,"OTP apparently not configured with --enable-native-libs"}; + true -> + ?line true = lists:all(fun code:is_module_native/1, + [ets,file,filename,gb_sets,gb_trees, + hipe_unified_loader,lists,os,packages]), + ok + end. + %%----------------------------------------------------------------- %% error_logger handler. %% (Copied from stdlib/test/proc_lib_SUITE.erl.) diff --git a/lib/kernel/test/gen_udp_SUITE.erl b/lib/kernel/test/gen_udp_SUITE.erl index bd5685952e..fa1991872b 100644 --- a/lib/kernel/test/gen_udp_SUITE.erl +++ b/lib/kernel/test/gen_udp_SUITE.erl @@ -34,12 +34,12 @@ -export([send_to_closed/1, buffer_size/1, binary_passive_recv/1, bad_address/1, - read_packets/1, open_fd/1]). + read_packets/1, open_fd/1, connect/1]). all(suite) -> [send_to_closed, buffer_size, binary_passive_recv, bad_address, read_packets, - open_fd]. + open_fd, connect]. init_per_testcase(_Case, Config) -> ?line Dog=test_server:timetrap(?default_timeout), @@ -408,3 +408,20 @@ start_node(Name) -> stop_node(Node) -> ?t:stop_node(Node). + + +connect(suite) -> + []; +connect(doc) -> + ["Test that connect/3 has effect"]; +connect(Config) when is_list(Config) -> + Addr = {127,0,0,1}, + {ok,S1} = gen_udp:open(0), + {ok,P1} = inet:port(S1), + {ok,S2} = gen_udp:open(0), + ok = inet:setopts(S2, [{active,false}]), + ok = gen_udp:close(S1), + ok = gen_udp:connect(S2, Addr, P1), + ok = gen_udp:send(S2, <<16#deadbeef:32>>), + {error,econnrefused} = gen_udp:recv(S2, 0, 5), + ok. diff --git a/lib/kernel/vsn.mk b/lib/kernel/vsn.mk index 7dd99b37dd..9a191f9aeb 100644 --- a/lib/kernel/vsn.mk +++ b/lib/kernel/vsn.mk @@ -17,4 +17,4 @@ # %CopyrightEnd% # -KERNEL_VSN = 2.14 +KERNEL_VSN = 2.14.1 |