diff options
Diffstat (limited to 'lib')
39 files changed, 1338 insertions, 465 deletions
diff --git a/lib/Makefile b/lib/Makefile index 6605c6145c..ea2827bef0 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -58,10 +58,10 @@ else SUB_DIRECTORIES = hipe parsetools asn1/src else ifdef TERTIARY_BOOTSTRAP - SUB_DIRECTORIES = snmp sasl jinterface syntax_tools wx + SUB_DIRECTORIES = snmp sasl erl_interface jinterface syntax_tools wx else ifdef DOC_BOOTSTRAP - SUB_DIRECTORIES = xmerl edoc erl_docgen + SUB_DIRECTORIES = xmerl edoc erl_docgen public_key else # Not bootstrap build SUB_DIRECTORIES = $(ERTS_APPLICATIONS) \ $(ERLANG_APPLICATIONS) \ diff --git a/lib/common_test/doc/src/basics_chapter.xml b/lib/common_test/doc/src/basics_chapter.xml index 95599ca1f1..899a52fa31 100644 --- a/lib/common_test/doc/src/basics_chapter.xml +++ b/lib/common_test/doc/src/basics_chapter.xml @@ -125,7 +125,7 @@ The test case is the smallest unit that the <c>Common Test</c> test server deals with. </p> <p> - Subsets of test cases, called test case groups, can also be defined. A test case + Sets of test cases, called test case groups, can also be defined. A test case group can have execution properties associated with it. Execution properties specify if the test cases in the group are to be executed in random order, in parallel, or in sequence, and if the execution of the group diff --git a/lib/compiler/src/beam_kernel_to_ssa.erl b/lib/compiler/src/beam_kernel_to_ssa.erl index 410bafe0bb..df95749fb3 100644 --- a/lib/compiler/src/beam_kernel_to_ssa.erl +++ b/lib/compiler/src/beam_kernel_to_ssa.erl @@ -327,7 +327,7 @@ select_bin_seg(#k_val_clause{val=#k_bin_seg{size=Size,unit=U,type=T, {Mis,St1} = select_extract_bin(Next, Size, U, T, Fs, Fail, Ctx, LineAnno, St0), {Extracted,St2} = new_ssa_var(Seg#k_var.name, St1), - {Bis,St} = bin_match_cg(Size, B, Fail, St2), + {Bis,St} = match_cg(B, Fail, St2), BsGet = #b_set{op=bs_extract,dst=Extracted,args=[ssa_arg(Next, St)]}, Is = Mis ++ [BsGet] ++ Bis, {Is,St}; @@ -362,14 +362,6 @@ select_bin_seg(#k_val_clause{val=#k_bin_int{size=Sz,unit=U,flags=Fs, end, {Is,St}. -bin_match_cg(#k_atom{val=all}, B0, Fail, St) -> - #k_select{types=Types} = B0, - [#k_type_clause{type=k_bin_end,values=Values}] = Types, - [#k_val_clause{val=#k_bin_end{},body=B}] = Values, - match_cg(B, Fail, St); -bin_match_cg(_, B, Fail, St) -> - match_cg(B, Fail, St). - get_context(#k_var{}=Var, St) -> ssa_arg(Var, St). diff --git a/lib/compiler/src/beam_ssa_dead.erl b/lib/compiler/src/beam_ssa_dead.erl index 2cca9ebadf..bb43a550ae 100644 --- a/lib/compiler/src/beam_ssa_dead.erl +++ b/lib/compiler/src/beam_ssa_dead.erl @@ -27,7 +27,8 @@ -export([opt/1]). -include("beam_ssa.hrl"). --import(lists, [append/1,last/1,member/2,takewhile/2,reverse/1]). +-import(lists, [append/1,keymember/3,last/1,member/2, + takewhile/2,reverse/1]). -type used_vars() :: #{beam_ssa:label():=ordsets:ordset(beam_ssa:var_name())}. @@ -58,7 +59,7 @@ opt(Linear) -> Blocks0 = maps:from_list(Linear), St0 = #st{bs=Blocks0,us=Used,skippable=Skippable}, St = shortcut_opt(St0), - #st{bs=Blocks} = combine_eqs(St), + #st{bs=Blocks} = combine_eqs(St#st{us=#{}}), beam_ssa:linearize(Blocks). %%% @@ -87,13 +88,22 @@ shortcut_opt(#st{bs=Blocks}=St) -> %% opportunities for optimizations compared to post order. (Based on %% running scripts/diffable with both PO and RPO and looking at %% the diff.) + %% + %% Unfortunately, processing the blocks in reverse post order + %% potentially makes the time complexity quadratic or even cubic if + %% the ordset of unset variables grows large, instead of + %% linear for post order processing. We try to still get reasonable + %% compilation times by optimizations that will keep the constant + %% factor as low as possible, and we try to avoid the cubic time + %% complexity by trying to keep the set of unset variables as small + %% as possible. + Ls = beam_ssa:rpo(Blocks), - shortcut_opt(Ls, #{from=>0}, St). + shortcut_opt(Ls, #{}, St). -shortcut_opt([L|Ls], Bs0, #st{bs=Blocks0}=St) -> +shortcut_opt([L|Ls], Bs, #st{bs=Blocks0}=St) -> #b_blk{is=Is,last=Last0} = Blk0 = get_block(L, St), - Bs = Bs0#{from:=L}, - case shortcut_terminator(Last0, Is, Bs, St) of + case shortcut_terminator(Last0, Is, L, Bs, St) of Last0 -> %% No change. No need to update the block. shortcut_opt(Ls, Bs, St); @@ -107,17 +117,17 @@ shortcut_opt([L|Ls], Bs0, #st{bs=Blocks0}=St) -> shortcut_opt([], _, St) -> St. shortcut_terminator(#b_br{bool=#b_literal{val=true},succ=Succ0}, - _Is, Bs, St0) -> + _Is, From, Bs, St0) -> St = St0#st{rel_op=none}, - shortcut(Succ0, Bs, St); + shortcut(Succ0, From, Bs, St); shortcut_terminator(#b_br{bool=#b_var{}=Bool,succ=Succ0,fail=Fail0}=Br, - Is, Bs, St0) -> + Is, From, Bs, St0) -> St = St0#st{target=one_way}, RelOp = get_rel_op(Bool, Is), SuccBs = bind_var(Bool, #b_literal{val=true}, Bs), - BrSucc = shortcut(Succ0, SuccBs, St#st{rel_op=RelOp}), + BrSucc = shortcut(Succ0, From, SuccBs, St#st{rel_op=RelOp}), FailBs = bind_var(Bool, #b_literal{val=false}, Bs), - BrFail = shortcut(Fail0, FailBs, St#st{rel_op=invert_op(RelOp)}), + BrFail = shortcut(Fail0, From, FailBs, St#st{rel_op=invert_op(RelOp)}), case {BrSucc,BrFail} of {#b_br{bool=#b_literal{val=true},succ=Succ}, #b_br{bool=#b_literal{val=true},succ=Fail}} @@ -128,25 +138,25 @@ shortcut_terminator(#b_br{bool=#b_var{}=Bool,succ=Succ0,fail=Fail0}=Br, %% No change. Br end; -shortcut_terminator(#b_switch{arg=Bool,list=List0}=Sw, _Is, Bs, St) -> - List = shortcut_switch(List0, Bool, Bs, St), +shortcut_terminator(#b_switch{arg=Bool,list=List0}=Sw, _Is, From, Bs, St) -> + List = shortcut_switch(List0, Bool, From, Bs, St), beam_ssa:normalize(Sw#b_switch{list=List}); -shortcut_terminator(Last, _Is, _Bs, _St) -> +shortcut_terminator(Last, _Is, _Bs, _From, _St) -> Last. -shortcut_switch([{Lit,L0}|T], Bool, Bs, St0) -> +shortcut_switch([{Lit,L0}|T], Bool, From, Bs, St0) -> RelOp = {'=:=',Bool,Lit}, St = St0#st{rel_op=RelOp}, #b_br{bool=#b_literal{val=true},succ=L} = - shortcut(L0, bind_var(Bool, Lit, Bs), St#st{target=one_way}), - [{Lit,L}|shortcut_switch(T, Bool, Bs, St0)]; -shortcut_switch([], _, _, _) -> []. + shortcut(L0, From, bind_var(Bool, Lit, Bs), St#st{target=one_way}), + [{Lit,L}|shortcut_switch(T, Bool, From, Bs, St0)]; +shortcut_switch([], _, _, _, _) -> []. -shortcut(L, Bs, St) -> - shortcut_1(L, Bs, ordsets:new(), St). +shortcut(L, From, Bs, St) -> + shortcut_1(L, From, Bs, ordsets:new(), St). -shortcut_1(L, Bs0, UnsetVars0, St) -> - case shortcut_2(L, Bs0, UnsetVars0, St) of +shortcut_1(L, From, Bs0, UnsetVars0, St) -> + case shortcut_2(L, From, Bs0, UnsetVars0, St) of none -> %% No more shortcuts found. Package up the previous %% label in an unconditional branch. @@ -156,13 +166,13 @@ shortcut_1(L, Bs0, UnsetVars0, St) -> Br; {#b_br{bool=#b_literal{val=true},succ=Succ},Bs,UnsetVars} -> %% This is a safe `br`, but try to find a better one. - shortcut_1(Succ, Bs#{from:=L}, UnsetVars, St) + shortcut_1(Succ, L, Bs, UnsetVars, St) end. %% Try to shortcut this block, branching to a successor. -shortcut_2(L, Bs0, UnsetVars0, St) -> +shortcut_2(L, From, Bs0, UnsetVars0, St) -> #b_blk{is=Is,last=Last} = get_block(L, St), - case eval_is(Is, Bs0, St) of + case eval_is(Is, From, Bs0, St) of none -> %% It is not safe to avoid this block because it %% has instructions with potential side effects. @@ -181,139 +191,147 @@ shortcut_2(L, Bs0, UnsetVars0, St) -> %% We have a potentially suitable br. %% Now update the set of variables that will never %% be set if this block will be skipped. - SetInThisBlock = [V || #b_set{dst=V} <- Is], - UnsetVars = update_unset_vars(L, Br, SetInThisBlock, - UnsetVars0, St), - - %% Continue checking whether this br is suitable. - shortcut_3(Br, Bs#{from:=L}, UnsetVars, St) + case update_unset_vars(L, Is, Br, UnsetVars0, St) of + unsafe -> + %% It is unsafe to use this br, + %% because it refers to a variable defined + %% in this block. + shortcut_unsafe_br(Br, L, Bs, UnsetVars0, St); + UnsetVars -> + %% Continue checking whether this br is + %% suitable. + shortcut_test_br(Br, L, Bs, UnsetVars, St) + end end end. -shortcut_3(Br, Bs, UnsetVars, #st{target=Target}=St) -> +shortcut_test_br(Br, From, Bs, UnsetVars, St) -> case is_br_safe(UnsetVars, Br, St) of false -> - %% Branching using this `br` is unsafe, either because it - %% is an unconditional branch to a phi node, or because - %% one or more of the variables that are not set will be - %% used. Try to follow branches of this `br`, to find a - %% safe `br`. - case Br of - #b_br{bool=#b_literal{val=true},succ=L} -> - case Target of - L -> - %% We have reached the forced target, and it - %% is unsafe. Give up. - none; - _ -> - %% Try following this branch to see whether it - %% leads to a safe `br`. - shortcut_2(L, Bs, UnsetVars, St) - end; - #b_br{bool=#b_var{},succ=Succ,fail=Fail} -> - case {Succ,Fail} of - {L,Target} -> - %% The failure label is the forced target. - %% Try following the success label to see - %% whether it also ultimately ends up at the - %% forced target. - shortcut_2(L, Bs, UnsetVars, St); - {Target,L} -> - %% The success label is the forced target. - %% Try following the failure label to see - %% whether it also ultimately ends up at the - %% forced target. - shortcut_2(L, Bs, UnsetVars, St); - {_,_} -> - case Target of - any -> - %% This two-way branch is unsafe. Try reducing - %% it to a one-way branch. - shortcut_two_way(Br, Bs, UnsetVars, St); - one_way -> - %% This two-way branch is unsafe. Try reducing - %% it to a one-way branch. - shortcut_two_way(Br, Bs, UnsetVars, St); - _ when is_integer(Target) -> - %% This two-way branch is unsafe, and - %% there already is a forced target. - %% Give up. - none - end - end - end; + shortcut_unsafe_br(Br, From, Bs, UnsetVars, St); true -> - %% This `br` instruction is safe. It does not - %% branch to a phi node, and all variables that - %% will be used are guaranteed to be defined. - case Br of - #b_br{bool=#b_literal{val=true},succ=L} -> - %% This is a one-way branch. + shortcut_safe_br(Br, From, Bs, UnsetVars, St) + end. + +shortcut_unsafe_br(Br, From, Bs, UnsetVars, #st{target=Target}=St) -> + %% Branching using this `br` is unsafe, either because it + %% is an unconditional branch to a phi node, or because + %% one or more of the variables that are not set will be + %% used. Try to follow branches of this `br`, to find a + %% safe `br`. + case Br of + #b_br{bool=#b_literal{val=true},succ=L} -> + case Target of + L -> + %% We have reached the forced target, and it + %% is unsafe. Give up. + none; + _ -> + %% Try following this branch to see whether it + %% leads to a safe `br`. + shortcut_2(L, From, Bs, UnsetVars, St) + end; + #b_br{bool=#b_var{},succ=Succ,fail=Fail} -> + case {Succ,Fail} of + {L,Target} -> + %% The failure label is the forced target. + %% Try following the success label to see + %% whether it also ultimately ends up at the + %% forced target. + shortcut_2(L, From, Bs, UnsetVars, St); + {Target,L} -> + %% The success label is the forced target. + %% Try following the failure label to see + %% whether it also ultimately ends up at the + %% forced target. + shortcut_2(L, From, Bs, UnsetVars, St); + {_,_} -> case Target of any -> - %% No forced target. Success! - {Br,Bs,UnsetVars}; + %% This two-way branch is unsafe. Try + %% reducing it to a one-way branch. + shortcut_two_way(Br, From, Bs, UnsetVars, St); one_way -> - %% The target must be a one-way branch, which this - %% `br` is. Success! - {Br,Bs,UnsetVars}; - L when is_integer(Target) -> - %% The forced target is L. Success! - {Br,Bs,UnsetVars}; + %% This two-way branch is unsafe. Try + %% reducing it to a one-way branch. + shortcut_two_way(Br, From, Bs, UnsetVars, St); _ when is_integer(Target) -> - %% Wrong forced target. Try following this branch - %% to see if it ultimately ends up at the forced - %% target. - shortcut_2(L, Bs, UnsetVars, St) - end; - #b_br{bool=#b_var{}} -> - %% This is a two-way branch. - if - Target =:= any; Target =:= one_way -> - %% No specific forced target. Try to reduce the - %% two-way branch to an one-way branch. - case shortcut_two_way(Br, Bs, UnsetVars, St) of - none when Target =:= any -> - %% This `br` can't be reduced to a one-way - %% branch. Return the `br` as-is. - {Br,Bs,UnsetVars}; - none when Target =:= one_way -> - %% This `br` can't be reduced to a one-way - %% branch. The caller wants a one-way branch. - %% Give up. - none; - {_,_,_}=Res -> - %% This `br` was successfully reduced to a - %% one-way branch. - Res - end; - is_integer(Target) -> - %% There is a forced target, which can't - %% be reached because this `br` is a two-way - %% branch. Give up. + %% This two-way branch is unsafe, and + %% there already is a forced target. + %% Give up. none end end end. -update_unset_vars(L, Br, SetInThisBlock, UnsetVars, #st{skippable=Skippable}) -> +shortcut_safe_br(Br, From, Bs, UnsetVars, #st{target=Target}=St) -> + %% This `br` instruction is safe. It does not branch to a phi + %% node, and all variables that will be used are guaranteed to be + %% defined. + case Br of + #b_br{bool=#b_literal{val=true},succ=L} -> + %% This is a one-way branch. + case Target of + any -> + %% No forced target. Success! + {Br,Bs,UnsetVars}; + one_way -> + %% The target must be a one-way branch, which this + %% `br` is. Success! + {Br,Bs,UnsetVars}; + L when is_integer(Target) -> + %% The forced target is L. Success! + {Br,Bs,UnsetVars}; + _ when is_integer(Target) -> + %% Wrong forced target. Try following this branch + %% to see if it ultimately ends up at the forced + %% target. + shortcut_2(L, From, Bs, UnsetVars, St) + end; + #b_br{bool=#b_var{}} -> + %% This is a two-way branch. + if + Target =:= any; Target =:= one_way -> + %% No specific forced target. Try to reduce the + %% two-way branch to an one-way branch. + case shortcut_two_way(Br, From, Bs, UnsetVars, St) of + none when Target =:= any -> + %% This `br` can't be reduced to a one-way + %% branch. Return the `br` as-is. + {Br,Bs,UnsetVars}; + none when Target =:= one_way -> + %% This `br` can't be reduced to a one-way + %% branch. The caller wants a one-way + %% branch. Give up. + none; + {_,_,_}=Res -> + %% This `br` was successfully reduced to a + %% one-way branch. + Res + end; + is_integer(Target) -> + %% There is a forced target, which can't + %% be reached because this `br` is a two-way + %% branch. Give up. + none + end + end. + +update_unset_vars(L, Is, Br, UnsetVars, #st{skippable=Skippable}) -> case is_map_key(L, Skippable) of true -> %% None of the variables used in this block are used in - %% the successors. We can speed up compilation by avoiding - %% adding variables to the UnsetVars if the presence of - %% those variable would not change the outcome of the - %% tests in is_br_safe/2. + %% the successors. Thus, there is no need to add the + %% variables to the set of unset variables. case Br of - #b_br{bool=Bool} -> - case member(Bool, SetInThisBlock) of + #b_br{bool=#b_var{}=Bool} -> + case keymember(Bool, #b_set.dst, Is) of true -> %% Bool is a variable defined in this - %% block. It will change the outcome of - %% the `not member(V, UnsetVars)` check in - %% is_br_safe/2. The other variables - %% defined in this block will not. - ordsets:add_element(Bool, UnsetVars); + %% block. Using the br instruction from + %% this block (and skipping the body of + %% the block) is unsafe. + unsafe; false -> %% Bool is either a variable not defined %% in this block or a literal. Adding it @@ -321,18 +339,24 @@ update_unset_vars(L, Br, SetInThisBlock, UnsetVars, #st{skippable=Skippable}) -> %% the outcome of the tests in %% is_br_safe/2. UnsetVars - end + end; + #b_br{} -> + UnsetVars end; false -> + %% Some variables defined in this block are used by + %% successors. We must update the set of unset variables. + SetInThisBlock = [V || #b_set{dst=V} <- Is], ordsets:union(UnsetVars, ordsets:from_list(SetInThisBlock)) end. -shortcut_two_way(#b_br{succ=Succ,fail=Fail}, Bs0, UnsetVars0, St) -> - case shortcut_2(Succ, Bs0, UnsetVars0, St#st{target=Fail}) of +shortcut_two_way(#b_br{succ=Succ,fail=Fail}, From, Bs0, UnsetVars0, St0) -> + case shortcut_2(Succ, From, Bs0, UnsetVars0, St0#st{target=Fail}) of {#b_br{bool=#b_literal{},succ=Fail},_,_}=Res -> Res; none -> - case shortcut_2(Fail, Bs0, UnsetVars0, St#st{target=Succ}) of + St = St0#st{target=Succ}, + case shortcut_2(Fail, From, Bs0, UnsetVars0, St) of {#b_br{bool=#b_literal{},succ=Succ},_,_}=Res -> Res; none -> @@ -374,40 +398,42 @@ is_forbidden(L, St) -> %% Return the updated bindings, or 'none' if there is %% any instruction with potential side effects. -eval_is([#b_set{op=phi,dst=Dst,args=Args}|Is], Bs0, St) -> - From = map_get(from, Bs0), - [Val] = [Val || {Val,Pred} <- Args, Pred =:= From], +eval_is([#b_set{op=phi,dst=Dst,args=Args}|Is], From, Bs0, St) -> + Val = get_phi_arg(Args, From), Bs = bind_var(Dst, Val, Bs0), - eval_is(Is, Bs, St); -eval_is([#b_set{op={bif,_},dst=Dst}=I0|Is], Bs, St) -> + eval_is(Is, From, Bs, St); +eval_is([#b_set{op={bif,_},dst=Dst}=I0|Is], From, Bs, St) -> I = sub(I0, Bs), case eval_bif(I, St) of #b_literal{}=Val -> - eval_is(Is, bind_var(Dst, Val, Bs), St); + eval_is(Is, From, bind_var(Dst, Val, Bs), St); none -> - eval_is(Is, Bs, St) + eval_is(Is, From, Bs, St) end; -eval_is([#b_set{op=Op,dst=Dst}=I|Is], Bs, St) +eval_is([#b_set{op=Op,dst=Dst}=I|Is], From, Bs, St) when Op =:= is_tagged_tuple; Op =:= is_nonempty_list -> #b_set{args=Args} = sub(I, Bs), case eval_rel_op(Op, Args, St) of #b_literal{}=Val -> - eval_is(Is, bind_var(Dst, Val, Bs), St); + eval_is(Is, From, bind_var(Dst, Val, Bs), St); none -> - eval_is(Is, Bs, St) + eval_is(Is, From, Bs, St) end; -eval_is([#b_set{}=I|Is], Bs, St) -> +eval_is([#b_set{}=I|Is], From, Bs, St) -> case beam_ssa:no_side_effect(I) of true -> %% This instruction has no side effects. It can %% safely be omitted. - eval_is(Is, Bs, St); + eval_is(Is, From, Bs, St); false -> %% This instruction may have some side effect. %% It is not safe to avoid this instruction. none end; -eval_is([], Bs, _St) -> Bs. +eval_is([], _From, Bs, _St) -> Bs. + +get_phi_arg([{Val,From}|_], From) -> Val; +get_phi_arg([_|As], From) -> get_phi_arg(As, From). eval_terminator(#b_br{bool=#b_var{}=Bool}=Br, Bs, _St) -> Val = get_value(Bool, Bs), @@ -477,20 +503,31 @@ eval_bif(#b_set{op={bif,Bif},args=Args}, St) -> false -> none; true -> - case [Lit || #b_literal{val=Lit} <- Args] of - LitArgs when length(LitArgs) =:= Arity -> + case get_lit_args(Args) of + none -> + %% Not literal arguments. Try to evaluate + %% it based on a previous relational operator. + eval_rel_op({bif,Bif}, Args, St); + LitArgs -> try apply(erlang, Bif, LitArgs) of Val -> #b_literal{val=Val} catch error:_ -> none - end; - _ -> - %% Not literal arguments. Try to evaluate - %% it based on a previous relational operator. - eval_rel_op({bif,Bif}, Args, St) + end end end. +get_lit_args([#b_literal{val=Lit1}]) -> + [Lit1]; +get_lit_args([#b_literal{val=Lit1}, + #b_literal{val=Lit2}]) -> + [Lit1,Lit2]; +get_lit_args([#b_literal{val=Lit1}, + #b_literal{val=Lit2}, + #b_literal{val=Lit3}]) -> + [Lit1,Lit2,Lit3]; +get_lit_args(_) -> none. + %%% %%% Handling of relational operators. %%% @@ -1026,11 +1063,12 @@ used_vars_is([], Used) -> sub(#b_set{args=Args}=I, Sub) -> I#b_set{args=[sub_arg(A, Sub) || A <- Args]}. -sub_arg(Old, Sub) -> +sub_arg(#b_var{}=Old, Sub) -> case Sub of #{Old:=New} -> New; #{} -> Old - end. + end; +sub_arg(Old, _Sub) -> Old. rel2fam(S0) -> S1 = sofs:relation(S0), diff --git a/lib/compiler/src/beam_ssa_opt.erl b/lib/compiler/src/beam_ssa_opt.erl index 6e548dd529..bcf55f3fda 100644 --- a/lib/compiler/src/beam_ssa_opt.erl +++ b/lib/compiler/src/beam_ssa_opt.erl @@ -175,6 +175,7 @@ epilogue_passes(Opts) -> ?PASS(ssa_opt_blockify), ?PASS(ssa_opt_sink), ?PASS(ssa_opt_merge_blocks), + ?PASS(ssa_opt_get_tuple_element), ?PASS(ssa_opt_trim_unreachable)], passes_1(Ps, Opts). @@ -682,6 +683,14 @@ record_opt_is([#b_set{op={bif,is_tuple},dst=Bool,args=[Tuple]}=Set], no -> [Set] end; +record_opt_is([I|Is]=Is0, #b_br{bool=Bool}=Last, Blocks) -> + case is_tagged_tuple_1(Is0, Last, Blocks) of + {yes,_Fail,Tuple,Arity,Tag} -> + Args = [Tuple,Arity,Tag], + [I#b_set{op=is_tagged_tuple,dst=Bool,args=Args}]; + no -> + [I|record_opt_is(Is, Last, Blocks)] + end; record_opt_is([I|Is], Last, Blocks) -> [I|record_opt_is(Is, Last, Blocks)]; record_opt_is([], _Last, _Blocks) -> []. @@ -689,29 +698,30 @@ record_opt_is([], _Last, _Blocks) -> []. is_tagged_tuple(#b_var{}=Tuple, Bool, #b_br{bool=Bool,succ=Succ,fail=Fail}, Blocks) -> - SuccBlk = map_get(Succ, Blocks), - is_tagged_tuple_1(SuccBlk, Tuple, Fail, Blocks); + #b_blk{is=Is,last=Last} = map_get(Succ, Blocks), + case is_tagged_tuple_1(Is, Last, Blocks) of + {yes,Fail,Tuple,Arity,Tag} -> + {yes,Arity,Tag}; + _ -> + no + end; is_tagged_tuple(_, _, _, _) -> no. -is_tagged_tuple_1(#b_blk{is=Is,last=Last}, Tuple, Fail, Blocks) -> - case Is of - [#b_set{op={bif,tuple_size},dst=ArityVar, - args=[#b_var{}=Tuple]}, - #b_set{op={bif,'=:='}, - dst=Bool, - args=[ArityVar, #b_literal{val=ArityVal}=Arity]}] - when is_integer(ArityVal) -> - case Last of - #b_br{bool=Bool,succ=Succ,fail=Fail} -> - SuccBlk = map_get(Succ, Blocks), - case is_tagged_tuple_2(SuccBlk, Tuple, Fail) of - no -> - no; - {yes,Tag} -> - {yes,Arity,Tag} - end; - _ -> - no +is_tagged_tuple_1(Is, Last, Blocks) -> + case {Is,Last} of + {[#b_set{op={bif,tuple_size},dst=ArityVar, + args=[#b_var{}=Tuple]}, + #b_set{op={bif,'=:='}, + dst=Bool, + args=[ArityVar, #b_literal{val=ArityVal}=Arity]}], + #b_br{bool=Bool,succ=Succ,fail=Fail}} + when is_integer(ArityVal) -> + SuccBlk = map_get(Succ, Blocks), + case is_tagged_tuple_2(SuccBlk, Tuple, Fail) of + no -> + no; + {yes,Tag} -> + {yes,Fail,Tuple,Arity,Tag} end; _ -> no @@ -2174,6 +2184,46 @@ insert_def_is([#b_set{op=Op}=I|Is]=Is0, V, Def) -> insert_def_is([], _V, Def) -> [Def]. +%%% +%%% Order consecutive get_tuple_element instructions in ascending +%%% position order. This will give the loader more opportunities +%%% for combining get_tuple_element instructions. +%%% + +ssa_opt_get_tuple_element({#st{ssa=Blocks0}=St, FuncDb}) -> + Blocks = opt_get_tuple_element(maps:to_list(Blocks0), Blocks0), + {St#st{ssa=Blocks}, FuncDb}. + +opt_get_tuple_element([{L,#b_blk{is=Is0}=Blk0}|Bs], Blocks) -> + case opt_get_tuple_element_is(Is0, false, []) of + {yes,Is} -> + Blk = Blk0#b_blk{is=Is}, + opt_get_tuple_element(Bs, Blocks#{L:=Blk}); + no -> + opt_get_tuple_element(Bs, Blocks) + end; +opt_get_tuple_element([], Blocks) -> Blocks. + +opt_get_tuple_element_is([#b_set{op=get_tuple_element, + args=[#b_var{}=Src,_]}=I0|Is0], + _AnyChange, Acc) -> + {GetIs0,Is} = collect_get_tuple_element(Is0, Src, [I0]), + GetIs1 = sort([{Pos,I} || #b_set{args=[_,Pos]}=I <- GetIs0]), + GetIs = [I || {_,I} <- GetIs1], + opt_get_tuple_element_is(Is, true, reverse(GetIs, Acc)); +opt_get_tuple_element_is([I|Is], AnyChange, Acc) -> + opt_get_tuple_element_is(Is, AnyChange, [I|Acc]); +opt_get_tuple_element_is([], AnyChange, Acc) -> + case AnyChange of + true -> {yes,reverse(Acc)}; + false -> no + end. + +collect_get_tuple_element([#b_set{op=get_tuple_element, + args=[Src,_]}=I|Is], Src, Acc) -> + collect_get_tuple_element(Is, Src, [I|Acc]); +collect_get_tuple_element(Is, _Src, Acc) -> + {Acc,Is}. %%% %%% Common utilities. diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 86351bc0c5..e2b8787224 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -1590,19 +1590,12 @@ match_var([U|Us], Cs0, Def, St) -> %% constructor/constant as first argument. Group the constructors %% according to type, the order is really irrelevant but tries to be %% smart. - -match_con(Us, Cs0, Def, St) -> - %% Expand literals at the top level. - Cs = [expand_pat_lit_clause(C) || C <- Cs0], - match_con_1(Us, Cs, Def, St). - -match_con_1([U|_Us] = L, Cs, Def, St0) -> +match_con([U|_Us] = L, Cs, Def, St0) -> %% Extract clauses for different constructors (types). %%ok = io:format("match_con ~p~n", [Cs]), - Ttcs0 = select_types([k_binary], Cs) ++ select_bin_con(Cs) ++ - select_types([k_cons,k_tuple,k_map,k_atom,k_float, - k_int,k_nil], Cs), - Ttcs = opt_single_valued(Ttcs0), + Ttcs0 = select_types(Cs, [], [], [], [], [], [], [], [], []), + Ttcs1 = [{T, Types} || {T, [_ | _] = Types} <- Ttcs0], + Ttcs = opt_single_valued(Ttcs1), %%ok = io:format("ttcs = ~p~n", [Ttcs]), {Scs,St1} = mapfoldl(fun ({T,Tcs}, St) -> @@ -1613,8 +1606,41 @@ match_con_1([U|_Us] = L, Cs, Def, St0) -> St0, Ttcs), {build_alt_1st_no_fail(build_select(U, Scs), Def),St1}. -select_types(Types, Cs) -> - [{T,Tcs} || T <- Types, begin Tcs = select(T, Cs), Tcs =/= [] end]. +select_types([NoExpC | Cs], Bin, BinCon, Cons, Tuple, Map, Atom, Float, Int, Nil) -> + C = expand_pat_lit_clause(NoExpC), + case clause_con(C) of + k_binary -> + select_types(Cs, [C |Bin], BinCon, Cons, Tuple, Map, Atom, Float, Int, Nil); + k_bin_seg -> + select_types(Cs, Bin, [C | BinCon], Cons, Tuple, Map, Atom, Float, Int, Nil); + k_bin_end -> + select_types(Cs, Bin, [C | BinCon], Cons, Tuple, Map, Atom, Float, Int, Nil); + k_cons -> + select_types(Cs, Bin, BinCon, [C | Cons], Tuple, Map, Atom, Float, Int, Nil); + k_tuple -> + select_types(Cs, Bin, BinCon, Cons, [C | Tuple], Map, Atom, Float, Int, Nil); + k_map -> + select_types(Cs, Bin, BinCon, Cons, Tuple, [C | Map], Atom, Float, Int, Nil); + k_atom -> + select_types(Cs, Bin, BinCon, Cons, Tuple, Map, [C | Atom], Float, Int, Nil); + k_float -> + select_types(Cs, Bin, BinCon, Cons, Tuple, Map, Atom, [C | Float], Int, Nil); + k_int -> + select_types(Cs, Bin, BinCon, Cons, Tuple, Map, Atom, Float, [C | Int], Nil); + k_nil -> + select_types(Cs, Bin, BinCon, Cons, Tuple, Map, Atom, Float, Int, [C | Nil]) + end; +select_types([], Bin, BinCon, Cons, Tuple, Map, Atom, Float, Int, Nil) -> + [{k_binary, reverse(Bin)}] ++ handle_bin_con(reverse(BinCon)) ++ + [ + {k_cons, reverse(Cons)}, + {k_tuple, reverse(Tuple)}, + {k_map, reverse(Map)}, + {k_atom, reverse(Atom)}, + {k_float, reverse(Float)}, + {k_int, reverse(Int)}, + {k_nil, reverse(Nil)} + ]. expand_pat_lit_clause(#iclause{pats=[#ialias{pat=#k_literal{anno=A,val=Val}}=Alias|Ps]}=C) -> P = expand_pat_lit(Val, A), @@ -1743,20 +1769,12 @@ combine_bin_segs(#k_bin_end{}) -> combine_bin_segs(_) -> throw(not_possible). -%% select_bin_con([Clause]) -> [{Type,[Clause]}]. -%% Extract clauses for the k_bin_seg constructor. As k_bin_seg +%% handle_bin_con([Clause]) -> [{Type,[Clause]}]. +%% Handle clauses for the k_bin_seg constructor. As k_bin_seg %% matching can overlap, the k_bin_seg constructors cannot be %% reordered, only grouped. -select_bin_con(Cs0) -> - Cs1 = lists:filter(fun (C) -> - Con = clause_con(C), - (Con =:= k_bin_seg) or (Con =:= k_bin_end) - end, Cs0), - select_bin_con_1(Cs1). - - -select_bin_con_1(Cs) -> +handle_bin_con(Cs) -> try %% The usual way to match literals is to first extract the %% value to a register, and then compare the register to the @@ -1795,14 +1813,14 @@ select_bin_con_1(Cs) -> end catch throw:not_possible -> - select_bin_con_2(Cs) + handle_bin_con_not_possible(Cs) end. -select_bin_con_2([C1|Cs]) -> +handle_bin_con_not_possible([C1|Cs]) -> Con = clause_con(C1), {More,Rest} = splitwith(fun (C) -> clause_con(C) =:= Con end, Cs), - [{Con,[C1|More]}|select_bin_con_2(Rest)]; -select_bin_con_2([]) -> []. + [{Con,[C1|More]}|handle_bin_con_not_possible(Rest)]; +handle_bin_con_not_possible([]) -> []. %% select_bin_int([Clause]) -> {k_bin_int,[Clause]} %% If the first pattern in each clause selects the same integer, @@ -1902,10 +1920,6 @@ select_utf8(Val0) -> throw(not_possible) end. -%% select(Con, [Clause]) -> [Clause]. - -select(T, Cs) -> [ C || C <- Cs, clause_con(C) =:= T ]. - %% match_value([Var], Con, [Clause], Default, State) -> {SelectExpr,State}. %% At this point all the clauses have the same constructor, we must %% now separate them according to value. @@ -2040,6 +2054,10 @@ get_match(#k_cons{}, St0) -> get_match(#k_binary{}, St0) -> {[V]=Mes,St1} = new_vars(1, St0), {#k_binary{segs=V},Mes,St1}; +get_match(#k_bin_seg{size=#k_atom{val=all},next={k_bin_end,[]}}=Seg, St0) -> + {[S,N0],St1} = new_vars(2, St0), + N = set_kanno(N0, [no_usage]), + {Seg#k_bin_seg{seg=S,next=N},[S],St1}; get_match(#k_bin_seg{}=Seg, St0) -> {[S,N0],St1} = new_vars(2, St0), N = set_kanno(N0, [no_usage]), @@ -2067,6 +2085,9 @@ new_clauses(Cs0, U, St) -> #k_cons{hd=H,tl=T} -> [H,T|As]; #k_tuple{es=Es} -> Es ++ As; #k_binary{segs=E} -> [E|As]; + #k_bin_seg{size=#k_atom{val=all}, + seg=S,next={k_bin_end,[]}} -> + [S|As]; #k_bin_seg{seg=S,next=N} -> [S,N|As]; #k_bin_int{next=N} -> diff --git a/lib/debugger/doc/src/Makefile b/lib/debugger/doc/src/Makefile index 56d6085e9c..49b5a4be57 100644 --- a/lib/debugger/doc/src/Makefile +++ b/lib/debugger/doc/src/Makefile @@ -114,8 +114,7 @@ include $(ERL_TOP)/make/otp_release_targets.mk release_docs_spec: docs $(INSTALL_DIR) "$(RELSYSDIR)/doc/pdf" $(INSTALL_DATA) $(TOP_PDF_FILE) "$(RELSYSDIR)/doc/pdf" - $(INSTALL_DIR) "$(RELSYSDIR)/doc/html" - ($(CP) -rf $(HTMLDIR) "$(RELSYSDIR)/doc") + $(INSTALL_DIR_DATA) $(HTMLDIR) "$(RELSYSDIR)/doc/html" $(INSTALL_DATA) $(INFO_FILE) "$(RELSYSDIR)" $(INSTALL_DIR) "$(RELEASE_PATH)/man/man3" $(INSTALL_DATA) $(MAN3DIR)/* "$(RELEASE_PATH)/man/man3" diff --git a/lib/erl_docgen/priv/css/otp_doc.css b/lib/erl_docgen/priv/css/otp_doc.css index 89b278215c..17d9f8dd56 100644 --- a/lib/erl_docgen/priv/css/otp_doc.css +++ b/lib/erl_docgen/priv/css/otp_doc.css @@ -74,7 +74,7 @@ a:visited { color: #1b6ec2; text-decoration: none } /* Invisible table for function specs, * just to get since-version out in right margin */ -.func-table, .func-tr, .func-td, .func-since-td { +.func-table, .func-tr, .func-td, .cfunc-td, .func-since-td { width: 200%; border: 0; padding: 0; @@ -86,7 +86,13 @@ a:visited { color: #1b6ec2; text-decoration: none } } .func-td { - width: 50% + width: 50%; +} + +.cfunc-td { + width: 50%; + padding-left: 100px; + text-indent: -100px; } .func-since-td { diff --git a/lib/erl_docgen/priv/xsl/db_html.xsl b/lib/erl_docgen/priv/xsl/db_html.xsl index c5150d447c..c9be926e1e 100644 --- a/lib/erl_docgen/priv/xsl/db_html.xsl +++ b/lib/erl_docgen/priv/xsl/db_html.xsl @@ -2119,17 +2119,10 @@ <xsl:when test="ancestor::cref"> <table class="func-table"> <tr class="func-tr"> - <td class="func-td"> + <td class="cfunc-td"> <span class="bold_code bc-7"> <xsl:call-template name="title_link"> <xsl:with-param name="link" select="substring-before(nametext, '(')"/> - <xsl:with-param name="title"> - <xsl:value-of select="ret"/> - <xsl:call-template name="maybe-space-after-ret"> - <xsl:with-param name="s" select="ret"/> - </xsl:call-template> - <xsl:value-of select="nametext"/> - </xsl:with-param> </xsl:call-template> </span> </td> @@ -2199,18 +2192,6 @@ </xsl:template> - <xsl:template name="maybe-space-after-ret"> - <xsl:param name="s"/> - <xsl:variable name="last_char" - select="substring($s, string-length($s), 1)"/> - <xsl:choose> - <xsl:when test="$last_char != '*'"> - <xsl:text> </xsl:text> - </xsl:when> - </xsl:choose> - </xsl:template> - - <!-- Type --> <xsl:template match="type"> <xsl:param name="partnum"/> @@ -2264,7 +2245,7 @@ </xsl:template> <xsl:template name="title_link"> - <xsl:param name="title"/> + <xsl:param name="title" select="'APPLY'"/> <xsl:param name="link" select="erl:to-link(title)"/> <xsl:param name="ghlink" select="ancestor-or-self::*[@ghlink][position() = 1]/@ghlink"/> <xsl:variable name="id" select="concat(concat($link,'-'), generate-id(.))"/> @@ -2274,7 +2255,16 @@ <xsl:with-param name="id" select="$id"/> <xsl:with-param name="ghlink" select="$ghlink"/> </xsl:call-template> - <a class="title_link" name="{$link}" href="#{$link}"><xsl:value-of select="$title"/></a> + <a class="title_link" name="{$link}" href="#{$link}"> + <xsl:choose> + <xsl:when test="$title = 'APPLY'"> + <xsl:apply-templates/> <!-- like <ret> and <nametext> --> + </xsl:when> + <xsl:otherwise> + <xsl:value-of select="$title"/> + </xsl:otherwise> + </xsl:choose> + </a> </span> </xsl:template> @@ -2704,4 +2694,46 @@ <xsl:value-of select="normalize-space(.)"/> </xsl:template> + <xsl:template match="ret"> + <xsl:value-of select="."/> + <xsl:variable name="last_char" select="substring(., string-length(.), 1)"/> + <xsl:if test="$last_char != '*'"> + <xsl:text> </xsl:text> + </xsl:if> + </xsl:template> + + <xsl:template match="nametext"> + <xsl:value-of select="substring-before(.,'(')"/> + <xsl:text>(</xsl:text> + <xsl:variable name="arglist" select="substring-after(.,'(')"/> + <xsl:choose> + <xsl:when test="$arglist = ')' or $arglist = 'void)'"> + <xsl:value-of select="$arglist"/> + </xsl:when> + <xsl:otherwise> + <br/> + <xsl:call-template name="cfunc-arglist"> + <xsl:with-param name="text" select="$arglist"/> + </xsl:call-template> + </xsl:otherwise> + </xsl:choose> + </xsl:template> + + <!-- Format C function argument list with <br> after comma --> + <xsl:template name="cfunc-arglist"> + <xsl:param name="text"/> + <xsl:variable name="line" select="normalize-space($text)"/> + <xsl:choose> + <xsl:when test="contains($line,',')"> + <xsl:value-of select="substring-before($line,',')"/>,<br/> + <xsl:call-template name="cfunc-arglist"> + <xsl:with-param name="text" select="substring-after($line,',')"/> + </xsl:call-template> + </xsl:when> + <xsl:otherwise> + <xsl:value-of select="$line"/> + </xsl:otherwise> + </xsl:choose> + </xsl:template> + </xsl:stylesheet> diff --git a/lib/erl_interface/Makefile b/lib/erl_interface/Makefile index 9471b0df18..5fff2cabdd 100644 --- a/lib/erl_interface/Makefile +++ b/lib/erl_interface/Makefile @@ -23,7 +23,11 @@ include $(ERL_TOP)/make/$(TARGET)/otp.mk # ---------------------------------------------------- # Common Macros # ---------------------------------------------------- +ifdef TERTIARY_BOOTSTRAP +SUB_DIRECTORIES = +else SUB_DIRECTORIES = src doc/src +endif SPECIAL_TARGETS = diff --git a/lib/erl_interface/configure.in b/lib/erl_interface/configure.in index 53c2f7069c..67acb7c180 100644 --- a/lib/erl_interface/configure.in +++ b/lib/erl_interface/configure.in @@ -188,7 +188,7 @@ AC_MSG_CHECKING([for deprecated attribute]) AC_TRY_COMPILE([], [void my_function(void) __attribute__((deprecated));], [AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_DEPRECATED_ATTRIBUTE, [], [Define to 1 if you have the `deprecated' attribute])], + AC_DEFINE(HAVE_DEPRECATED_ATTRIBUTE, [1], [Define to 1 if you have the `deprecated' attribute])], [AC_MSG_RESULT(no)]) diff --git a/lib/jinterface/doc/src/Makefile b/lib/jinterface/doc/src/Makefile index d80bb38ec1..f5cba9d074 100644 --- a/lib/jinterface/doc/src/Makefile +++ b/lib/jinterface/doc/src/Makefile @@ -137,6 +137,7 @@ clean clean_docs: jdoc:$(JAVA_SRC_FILES) (cd ../../java_src;$(JAVADOC) -sourcepath . -d $(JAVADOC_DEST) \ -windowtitle $(JAVADOC_TITLE) $(JAVADOC_PKGS)) + touch jdoc man: @@ -152,15 +153,8 @@ include $(ERL_TOP)/make/otp_release_targets.mk release_docs_spec: docs $(INSTALL_DIR) "$(RELSYSDIR)/doc/pdf" $(INSTALL_DATA) $(TOP_PDF_FILE) "$(RELSYSDIR)/doc/pdf" - $(INSTALL_DIR) "$(RELSYSDIR)/doc/html" - $(INSTALL_DIR) "$(RELSYSDIR)/doc/html/java/$(JAVA_PKG_PATH)" $(INSTALL_DATA) $(INFO_FILE) "$(RELSYSDIR)" - ($(CP) -rf ../html "$(RELSYSDIR)/doc") - -# $(INSTALL_DATA) $(GIF_FILES) $(EXTRA_FILES) $(HTML_FILES) \ -# "$(RELSYSDIR)/doc/html" -# $(INSTALL_DATA) $(JAVA_EXTRA_FILES) "$(RELSYSDIR)/doc/html/java" -# $(INSTALL_DATA) $(TOP_HTML_FILES) "$(RELSYSDIR)/doc" + $(INSTALL_DIR_DATA) $(HTMLDIR) "$(RELSYSDIR)/doc/html" release_spec: diff --git a/lib/kernel/doc/src/application.xml b/lib/kernel/doc/src/application.xml index 4e32c1a3a5..5170502581 100644 --- a/lib/kernel/doc/src/application.xml +++ b/lib/kernel/doc/src/application.xml @@ -238,6 +238,41 @@ Nodes = [cp1@cave, {cp2@cave, cp3@cave}]</code> </desc> </func> <func> + <name name="set_env" arity="1" since="OTP @OTP-15642@"/> + <name name="set_env" arity="2" since="OTP @OTP-15642@"/> + <fsummary>Sets the configuration parameters of multiple applications.</fsummary> + <desc> + <p>Sets the configuration <c><anno>Config</anno></c> for multiple + applications. It is equivalent to calling <c>set_env/4</c> on + each application individially, except it is more efficient. + The given <c><anno>Config</anno></c> is validated before the + configuration is set.</p> + <p><c>set_env/2</c> uses the standard <c>gen_server</c> time-out + value (5000 ms). Option <c>timeout</c> can be specified + if another time-out value is useful, for example, in situations + where the application controller is heavily loaded.</p> + <p>Option <c>persistent</c> can be set to <c>true</c> + to guarantee that parameters set with <c>set_env/2</c> + are not overridden by those defined in the application resource + file on load. This means that persistent values will stick after the application + is loaded and also on application reload.</p> + <p>If an application is given more than once or if an application + has the same key given more than once, the behaviour is undefined + and a warning message will be logged. In future releases, an error + will be raised.</p> + <p><c>set_env/1</c> is equivalent to <c>set_env(Config, [])</c>.</p> + <warning> + <p>Use this function only if you know what you are doing, + that is, on your own applications. It is very + application-dependent and + configuration parameter-dependent when and how often + the value is read by the application. Careless use + of this function can put the application in a + weird, inconsistent, and malfunctioning state.</p> + </warning> + </desc> + </func> + <func> <name name="permit" arity="2" since=""/> <fsummary>Change the permission for an application to run at a node.</fsummary> <desc> diff --git a/lib/kernel/doc/src/logger.xml b/lib/kernel/doc/src/logger.xml index df2d081d76..e6448e144e 100644 --- a/lib/kernel/doc/src/logger.xml +++ b/lib/kernel/doc/src/logger.xml @@ -190,7 +190,7 @@ logger:error("error happened because: ~p", [Reason]). % Without macro <list> <item><c>pid => self()</c></item> <item><c>gl => group_leader()</c></item> - <item><c>time => erlang:system_time(microsecond)</c></item> + <item><c>time => logger:timestamp()</c></item> </list> <p>When a log macro is used, Logger also inserts location information:</p> @@ -288,8 +288,8 @@ logger:error("error happened because: ~p", [Reason]). % Without macro <name name="timestamp"/> <desc> <p>A timestamp produced - with <seealso marker="erts:erlang#system_time-1"> - <c>erlang:system_time(microsecond)</c></seealso>.</p> + with <seealso marker="#timestamp-0"> + <c>logger:timestamp()</c></seealso>.</p> </desc> </datatype> </datatypes> @@ -1117,6 +1117,24 @@ logger:set_proxy_config(maps:merge(Old, Config)). a key-value list before formatting as such.</p> </desc> </func> + + <func> + <name name="timestamp" arity="0" since="OTP @OTP-15625@"/> + <fsummary>Return a timestamp to insert in meta data for a log + event.</fsummary> + <desc> + <p>Return a timestamp that can be inserted as the <c>time</c> + field in the meta data for a log event. It is produced with + <seealso marker="kernel:os#system_time-1"> + <c>os:system_time(microsecond)</c></seealso>.</p> + <p>Notice that Logger automatically inserts a timestamp in the + meta data unless it already exists. This function is + exported for the rare case when the timestamp must be taken + at a different point in time than when the log event is + issued.</p> + </desc> + </func> + </funcs> <section> diff --git a/lib/kernel/src/application.erl b/lib/kernel/src/application.erl index bc6be2f8f5..5c2e981e4b 100644 --- a/lib/kernel/src/application.erl +++ b/lib/kernel/src/application.erl @@ -25,7 +25,7 @@ which_applications/0, which_applications/1, loaded_applications/0, permit/2]). -export([ensure_started/1, ensure_started/2]). --export([set_env/3, set_env/4, unset_env/2, unset_env/3]). +-export([set_env/1, set_env/2, set_env/3, set_env/4, unset_env/2, unset_env/3]). -export([get_env/1, get_env/2, get_env/3, get_all_env/0, get_all_env/1]). -export([get_key/1, get_key/2, get_all_key/0, get_all_key/1]). -export([get_application/0, get_application/1, info/0]). @@ -279,6 +279,26 @@ loaded_applications() -> info() -> application_controller:info(). +-spec set_env(Config) -> 'ok' when + Config :: [{Application, Env}], + Application :: atom(), + Env :: [{Par :: atom(), Val :: term()}]. + +set_env(Config) when is_list(Config) -> + set_env(Config, []). + +-spec set_env(Config, Opts) -> 'ok' when + Config :: [{Application, Env}], + Application :: atom(), + Env :: [{Par :: atom(), Val :: term()}], + Opts :: [{timeout, timeout()} | {persistent, boolean()}]. + +set_env(Config, Opts) when is_list(Config), is_list(Opts) -> + case application_controller:set_env(Config, Opts) of + ok -> ok; + {error, Msg} -> erlang:error({badarg, Msg}, [Config, Opts]) + end. + -spec set_env(Application, Par, Val) -> 'ok' when Application :: atom(), Par :: atom(), diff --git a/lib/kernel/src/application_controller.erl b/lib/kernel/src/application_controller.erl index a074d2e74b..9a8091fb2e 100644 --- a/lib/kernel/src/application_controller.erl +++ b/lib/kernel/src/application_controller.erl @@ -26,7 +26,7 @@ control_application/1, change_application_data/2, prep_config_change/0, config_change/1, which_applications/0, which_applications/1, - loaded_applications/0, info/0, + loaded_applications/0, info/0, set_env/2, get_pid_env/2, get_env/2, get_pid_all_env/1, get_all_env/1, get_pid_key/2, get_key/2, get_pid_all_key/1, get_all_key/1, get_master/1, get_application/1, get_application_module/1, @@ -345,9 +345,6 @@ get_all_env(AppName) -> map(fun([Key, Val]) -> {Key, Val} end, ets:match(ac_tab, {{env, AppName, '$1'}, '$2'})). - - - get_pid_key(Master, Key) -> case ets:match(ac_tab, {{application_master, '$1'}, Master}) of [[AppName]] -> get_key(AppName, Key); @@ -461,6 +458,15 @@ permit_application(ApplName, Flag) -> {permit_application, ApplName, Flag}, infinity). +set_env(Config, Opts) -> + case check_conf_data(Config) of + ok -> + Timeout = proplists:get_value(timeout, Opts, 5000), + gen_server:call(?AC, {set_env, Config, Opts}, Timeout); + + {error, _} = Error -> + Error + end. set_env(AppName, Key, Val) -> gen_server:call(?AC, {set_env, AppName, Key, Val, []}). @@ -528,19 +534,17 @@ check_conf_data([]) -> check_conf_data(ConfData) when is_list(ConfData) -> [Application | ConfDataRem] = ConfData, case Application of - {kernel, List} when is_list(List) -> - case check_para_kernel(List) of - ok -> - check_conf_data(ConfDataRem); - Error1 -> - Error1 - end; {AppName, List} when is_atom(AppName), is_list(List) -> - case check_para(List, atom_to_list(AppName)) of - ok -> - check_conf_data(ConfDataRem); - Error2 -> - Error2 + case lists:keymember(AppName, 1, ConfDataRem) of + true -> + ?LOG_WARNING("duplicate application config: " ++ atom_to_list(AppName)); + false -> + ok + end, + + case check_para(List, AppName) of + ok -> check_conf_data(ConfDataRem); + Error -> Error end; {AppName, List} when is_list(List) -> ErrMsg = "application: " @@ -553,36 +557,40 @@ check_conf_data(ConfData) when is_list(ConfData) -> ++ "; parameters must be a list", {error, ErrMsg}; Else -> - ErrMsg = "invalid application name: " ++ - lists:flatten(io_lib:format(" ~tp",[Else])), + ErrMsg = "invalid application config: " + ++ lists:flatten(io_lib:format("~tp",[Else])), {error, ErrMsg} end; check_conf_data(_ConfData) -> - {error, 'configuration must be a list ended by <dot><whitespace>'}. - + {error, "configuration must be a list ended by <dot><whitespace>"}. -%% Special check of distributed parameter for kernel -check_para_kernel([]) -> + +check_para([], _AppName) -> ok; -check_para_kernel([{distributed, Apps} | ParaList]) when is_list(Apps) -> - case check_distributed(Apps) of - {error, _ErrorMsg} = Error -> - Error; - _ -> - check_para_kernel(ParaList) +check_para([{Para, Val} | ParaList], AppName) when is_atom(Para) -> + case lists:keymember(Para, 1, ParaList) of + true -> + ?LOG_WARNING("application: " ++ atom_to_list(AppName) ++ + "; duplicate parameter: " ++ atom_to_list(Para)); + false -> + ok + end, + + case check_para_value(Para, Val, AppName) of + ok -> check_para(ParaList, AppName); + {error, _} = Error -> Error end; -check_para_kernel([{distributed, _Apps} | _ParaList]) -> - {error, "application: kernel; erroneous parameter: distributed"}; -check_para_kernel([{Para, _Val} | ParaList]) when is_atom(Para) -> - check_para_kernel(ParaList); -check_para_kernel([{Para, _Val} | _ParaList]) -> - {error, "application: kernel; invalid parameter: " ++ +check_para([{Para, _Val} | _ParaList], AppName) -> + {error, "application: " ++ atom_to_list(AppName) ++ "; invalid parameter name: " ++ lists:flatten(io_lib:format("~tp",[Para]))}; -check_para_kernel(Else) -> - {error, "application: kernel; invalid parameter list: " ++ +check_para([Else | _ParaList], AppName) -> + {error, "application: " ++ atom_to_list(AppName) ++ "; invalid parameter: " ++ lists:flatten(io_lib:format("~tp",[Else]))}. - +check_para_value(distributed, Apps, kernel) -> check_distributed(Apps); +check_para_value(_Para, _Val, _AppName) -> ok. + +%% Special check of distributed parameter for kernel check_distributed([]) -> ok; check_distributed([{App, List} | Apps]) when is_atom(App), is_list(List) -> @@ -595,18 +603,6 @@ check_distributed(_Else) -> {error, "application: kernel; erroneous parameter: distributed"}. -check_para([], _AppName) -> - ok; -check_para([{Para, _Val} | ParaList], AppName) when is_atom(Para) -> - check_para(ParaList, AppName); -check_para([{Para, _Val} | _ParaList], AppName) -> - {error, "application: " ++ AppName ++ "; invalid parameter: " ++ - lists:flatten(io_lib:format("~tp",[Para]))}; -check_para([Else | _ParaList], AppName) -> - {error, "application: " ++ AppName ++ "; invalid parameter: " ++ - lists:flatten(io_lib:format("~tp",[Else]))}. - - -type calls() :: 'info' | 'prep_config_change' | 'which_applications' | {'config_change' | 'control_application' | 'load_application' | 'start_type' | 'stop_application' | @@ -863,6 +859,16 @@ handle_call(which_applications, _From, S) -> end, S#state.running), {reply, Reply, S}; +handle_call({set_env, Config, Opts}, _From, S) -> + _ = [add_env(AppName, Env) || {AppName, Env} <- Config], + + case proplists:get_value(persistent, Opts, false) of + true -> + {reply, ok, S#state{conf_data = merge_env(S#state.conf_data, Config)}}; + false -> + {reply, ok, S} + end; + handle_call({set_env, AppName, Key, Val, Opts}, _From, S) -> ets:insert(ac_tab, {{env, AppName, Key}, Val}), case proplists:get_value(persistent, Opts, false) of diff --git a/lib/kernel/src/code_server.erl b/lib/kernel/src/code_server.erl index 1b4a67ecb7..68e1205301 100644 --- a/lib/kernel/src/code_server.erl +++ b/lib/kernel/src/code_server.erl @@ -1434,19 +1434,25 @@ all_loaded(Db) -> -spec error_msg(io:format(), [term()]) -> 'ok'. error_msg(Format, Args) -> + %% This is equal to calling logger:error/3 which we don't want to + %% do from code_server. We don't want to call logger:timestamp() + %% either. logger ! {log,error,Format,Args, #{pid=>self(), gl=>group_leader(), - time=>erlang:system_time(microsecond), + time=>os:system_time(microsecond), error_logger=>#{tag=>error}}}, ok. -spec info_msg(io:format(), [term()]) -> 'ok'. info_msg(Format, Args) -> + %% This is equal to calling logger:info/3 which we don't want to + %% do from code_server. We don't want to call logger:timestamp() + %% either. logger ! {log,info,Format,Args, #{pid=>self(), gl=>group_leader(), - time=>erlang:system_time(microsecond), + time=>os:system_time(microsecond), error_logger=>#{tag=>info_msg}}}, ok. diff --git a/lib/kernel/src/inet_db.erl b/lib/kernel/src/inet_db.erl index 6cbb6ac2da..3f5a2ea5ee 100644 --- a/lib/kernel/src/inet_db.erl +++ b/lib/kernel/src/inet_db.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2019. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -1223,7 +1223,10 @@ handle_set_file(Option, Fname, TagTm, TagInfo, ParseFun, From, {ok, B, _} -> B; _ -> <<>> end; - _ -> <<>> + _ -> + ets:insert(Db, {TagInfo, undefined}), + TimeZero = - (?RES_FILE_UPDATE_TM + 1), % Early enough + ets:insert(Db, {TagTm, TimeZero}) end, handle_set_file(ParseFun, Bin, From, State); false -> {reply,error,State} diff --git a/lib/kernel/src/logger.erl b/lib/kernel/src/logger.erl index 7d36640f52..38bd2f481c 100644 --- a/lib/kernel/src/logger.erl +++ b/lib/kernel/src/logger.erl @@ -61,6 +61,7 @@ -export([set_process_metadata/1, update_process_metadata/1, unset_process_metadata/0, get_process_metadata/0]). -export([i/0, i/1]). +-export([timestamp/0]). %% Basic report formatting -export([format_report/1, format_otp_report/1]). @@ -154,7 +155,8 @@ filter_return/0, config_handler/0, formatter_config/0, - olp_config/0]). + olp_config/0, + timestamp/0]). %%%----------------------------------------------------------------- %%% API @@ -354,6 +356,10 @@ internal_log(Level,Term) when is_atom(Level) -> erlang:display_string("Logger - "++ atom_to_list(Level) ++ ": "), erlang:display(Term). +-spec timestamp() -> timestamp(). +timestamp() -> + os:system_time(microsecond). + %%%----------------------------------------------------------------- %%% Configuration -spec add_primary_filter(FilterId,Filter) -> ok | {error,term()} when @@ -1129,7 +1135,7 @@ proc_meta() -> default(pid) -> self(); default(gl) -> group_leader(); -default(time) -> erlang:system_time(microsecond). +default(time) -> timestamp(). %% Remove everything upto and including this module from the stacktrace filter_stacktrace(Module,[{Module,_,_,_}|_]) -> diff --git a/lib/kernel/src/logger_h_common.erl b/lib/kernel/src/logger_h_common.erl index e69f6de38d..4b5e0a7dd0 100644 --- a/lib/kernel/src/logger_h_common.erl +++ b/lib/kernel/src/logger_h_common.erl @@ -351,7 +351,7 @@ log_handler_info(Name, Format, Args, #{module:=Module, {ok,Conf} -> Conf; _ -> #{formatter=>{?DEFAULT_FORMATTER,?DEFAULT_FORMAT_CONFIG}} end, - Meta = #{time=>erlang:system_time(microsecond)}, + Meta = #{time=>logger:timestamp()}, Bin = log_to_binary(#{level => notice, msg => {Format,Args}, meta => Meta}, Config), diff --git a/lib/kernel/src/logger_simple_h.erl b/lib/kernel/src/logger_simple_h.erl index fe181722f3..a0d51dba25 100644 --- a/lib/kernel/src/logger_simple_h.erl +++ b/lib/kernel/src/logger_simple_h.erl @@ -69,7 +69,7 @@ log(#{msg:=_,meta:=#{time:=_}}=Log,_Config) -> do_log( #{level=>error, msg=>{report,{error,simple_handler_process_dead}}, - meta=>#{time=>erlang:system_time(microsecond)}}), + meta=>#{time=>logger:timestamp()}}), do_log(Log); _ -> ?MODULE ! {log,Log} @@ -129,7 +129,7 @@ drop_msg(0) -> drop_msg(N) -> [#{level=>info, msg=>{"Simple handler buffer full, dropped ~w messages",[N]}, - meta=>#{time=>erlang:system_time(microsecond)}}]. + meta=>#{time=>logger:timestamp()}}]. %%%----------------------------------------------------------------- %%% Internal diff --git a/lib/kernel/test/application_SUITE.erl b/lib/kernel/test/application_SUITE.erl index 5c35b82207..94d7c17712 100644 --- a/lib/kernel/test/application_SUITE.erl +++ b/lib/kernel/test/application_SUITE.erl @@ -31,6 +31,7 @@ otp_3002/1, otp_3184/1, otp_4066/1, otp_4227/1, otp_5363/1, otp_5606/1, start_phases/1, get_key/1, get_env/1, + set_env/1, set_env_persistent/1, set_env_errors/1, permit_false_start_local/1, permit_false_start_dist/1, script_start/1, nodedown_start/1, init2973/0, loop2973/0, loop5606/1]). @@ -55,6 +56,7 @@ all() -> load_use_cache, ensure_started, {group, reported_bugs}, start_phases, script_start, nodedown_start, permit_false_start_local, permit_false_start_dist, get_key, get_env, ensure_all_started, + set_env, set_env_persistent, set_env_errors, {group, distr_changed}, config_change, shutdown_func, shutdown_timeout, shutdown_deadlock, config_relative_paths, persistent_env]. @@ -1944,6 +1946,101 @@ get_appls([_ | T], Res) -> get_appls([], Res) -> Res. +%% Test set_env/1. +set_env(Conf) when is_list(Conf) -> + ok = application:set_env([{appinc, [{own2, persist}, {not_in_app, persist}]}, + {unknown_app, [{key, persist}]}]), + + %% own_env1 and own2 are set in appinc + undefined = application:get_env(appinc, own_env1), + {ok, persist} = application:get_env(appinc, own2), + {ok, persist} = application:get_env(appinc, not_in_app), + {ok, persist} = application:get_env(unknown_app, key), + + ok = application:load(appinc()), + {ok, value1} = application:get_env(appinc, own_env1), + {ok, val2} = application:get_env(appinc, own2), + {ok, persist} = application:get_env(appinc, not_in_app), + {ok, persist} = application:get_env(unknown_app, key), + + %% On reload, values are lost + ok = application:unload(appinc), + ok = application:load(appinc()), + {ok, value1} = application:get_env(appinc, own_env1), + {ok, val2} = application:get_env(appinc, own2), + undefined = application:get_env(appinc, not_in_app), + + %% Clean up + ok = application:unload(appinc). + +%% Test set_env/2 with persistent true. +set_env_persistent(Conf) when is_list(Conf) -> + Opts = [{persistent, true}], + ok = application:set_env([{appinc, [{own2, persist}, {not_in_app, persist}]}, + {unknown_app, [{key, persist}]}], Opts), + + %% own_env1 and own2 are set in appinc + undefined = application:get_env(appinc, own_env1), + {ok, persist} = application:get_env(appinc, own2), + {ok, persist} = application:get_env(appinc, not_in_app), + {ok, persist} = application:get_env(unknown_app, key), + + ok = application:load(appinc()), + {ok, value1} = application:get_env(appinc, own_env1), + {ok, persist} = application:get_env(appinc, own2), + {ok, persist} = application:get_env(appinc, not_in_app), + {ok, persist} = application:get_env(unknown_app, key), + + %% On reload, values are not lost + ok = application:unload(appinc), + ok = application:load(appinc()), + {ok, value1} = application:get_env(appinc, own_env1), + {ok, persist} = application:get_env(appinc, own2), + {ok, persist} = application:get_env(appinc, not_in_app), + + %% Clean up + ok = application:unload(appinc). + +set_env_errors(Conf) when is_list(Conf) -> + "application: 1; application name must be an atom" = + badarg_msg(fun() -> application:set_env([{1, []}]) end), + + "application: foo; parameters must be a list" = + badarg_msg(fun() -> application:set_env([{foo, bar}]) end), + + "invalid application config: foo_bar" = + badarg_msg(fun() -> application:set_env([foo_bar]) end), + + "application: foo; invalid parameter name: 1" = + badarg_msg(fun() -> application:set_env([{foo, [{1, 2}]}]) end), + + "application: foo; invalid parameter: config" = + badarg_msg(fun() -> application:set_env([{foo, [config]}]) end), + + "application: kernel; erroneous parameter: distributed" = + badarg_msg(fun() -> application:set_env([{kernel, [{distributed, config}]}]) end), + + %% This will raise in the future + ct:capture_start(), + _ = application:set_env([{foo, []}, {foo, []}]), + timer:sleep(100), + ct:capture_stop(), + [_ | _] = string:find(ct:capture_get(), "duplicate application config: foo"), + + ct:capture_start(), + _ = application:set_env([{foo, [{bar, baz}, {bar, bat}]}]), + timer:sleep(100), + ct:capture_stop(), + [_ | _] = string:find(ct:capture_get(), "application: foo; duplicate parameter: bar"), + + ok. + +badarg_msg(Fun) -> + try Fun() of + _ -> ct:fail(try_succeeded) + catch + error:{badarg, Msg} -> Msg + end. %% Test set_env/4 and unset_env/3 with persistent true. persistent_env(Conf) when is_list(Conf) -> diff --git a/lib/kernel/test/inet_SUITE.erl b/lib/kernel/test/inet_SUITE.erl index 8b33f4a679..44ec7e7076 100644 --- a/lib/kernel/test/inet_SUITE.erl +++ b/lib/kernel/test/inet_SUITE.erl @@ -21,6 +21,7 @@ -include_lib("common_test/include/ct.hrl"). -include_lib("kernel/include/inet.hrl"). +-include_lib("kernel/src/inet_res.hrl"). -include_lib("kernel/src/inet_dns.hrl"). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, @@ -34,7 +35,7 @@ ipv4_to_ipv6/0, ipv4_to_ipv6/1, host_and_addr/0, host_and_addr/1, t_gethostnative/1, - gethostnative_parallell/1, cname_loop/1, + gethostnative_parallell/1, cname_loop/1, missing_hosts_reload/1, gethostnative_soft_restart/0, gethostnative_soft_restart/1, gethostnative_debug_level/0, gethostnative_debug_level/1, lookup_bad_search_option/1, @@ -56,7 +57,7 @@ all() -> [t_gethostbyaddr, t_gethostbyname, t_getaddr, t_gethostbyaddr_v6, t_gethostbyname_v6, t_getaddr_v6, ipv4_to_ipv6, host_and_addr, {group, parse}, - t_gethostnative, gethostnative_parallell, cname_loop, + t_gethostnative, gethostnative_parallell, cname_loop, missing_hosts_reload, gethostnative_debug_level, gethostnative_soft_restart, lookup_bad_search_option, getif, getif_ifr_name_overflow, getservbyname_overflow, @@ -840,6 +841,32 @@ cname_loop(Config) when is_list(Config) -> ok. +%% Test that hosts file gets reloaded correctly in case when it +% was missing during initial startup +missing_hosts_reload(Config) when is_list(Config) -> + RootDir = proplists:get_value(priv_dir,Config), + HostsFile = filename:join(RootDir, atom_to_list(?MODULE) ++ ".hosts"), + InetRc = filename:join(RootDir, "inetrc"), + ok = file:write_file(InetRc, "{hosts_file, \"" ++ HostsFile ++ "\"}.\n"), + {error, enoent} = file:read_file_info(HostsFile), + % start a node + Pa = filename:dirname(code:which(?MODULE)), + {ok, TestNode} = test_server:start_node(?MODULE, slave, + [{args, "-pa " ++ Pa ++ " -kernel inetrc '\"" ++ InetRc ++ "\"'"}]), + % ensure it has our RC + Rc = rpc:call(TestNode, inet_db, get_rc, []), + {hosts_file, HostsFile} = lists:keyfind(hosts_file, 1, Rc), + % ensure it does not resolve + {error, nxdomain} = rpc:call(TestNode, inet_hosts, gethostbyname, ["somehost"]), + % write hosts file + ok = file:write_file(HostsFile, "1.2.3.4 somehost"), + % wait for cached timestamp to expire + timer:sleep(?RES_FILE_UPDATE_TM * 1000 + 100), + % ensure it DOES resolve + {ok,{hostent,"somehost",[],inet,4,[{1,2,3,4}]}} = + rpc:call(TestNode, inet_hosts, gethostbyname, ["somehost"]), + % cleanup + true = test_server:stop_node(TestNode). %% These must be run in the whole suite since they need %% the host list and require inet_gethost_native to be started. diff --git a/lib/kernel/test/logger_SUITE.erl b/lib/kernel/test/logger_SUITE.erl index 2dad651f9c..70bb775db8 100644 --- a/lib/kernel/test/logger_SUITE.erl +++ b/lib/kernel/test/logger_SUITE.erl @@ -899,14 +899,14 @@ process_metadata(_Config) -> undefined = logger:get_process_metadata(), {error,badarg} = ?TRY(logger:set_process_metadata(bad)), ok = logger:add_handler(h1,?MODULE,#{level=>notice,filter_default=>log}), - Time = erlang:system_time(microsecond), + Time = logger:timestamp(), ProcMeta = #{time=>Time,line=>0,custom=>proc}, ok = logger:set_process_metadata(ProcMeta), S1 = ?str, ?LOG_NOTICE(S1,#{custom=>macro}), check_logged(notice,S1,#{time=>Time,line=>0,custom=>macro}), - Time2 = erlang:system_time(microsecond), + Time2 = logger:timestamp(), S2 = ?str, ?LOG_NOTICE(S2,#{time=>Time2,line=>1,custom=>macro}), check_logged(notice,S2,#{time=>Time2,line=>1,custom=>macro}), diff --git a/lib/kernel/test/logger_formatter_SUITE.erl b/lib/kernel/test/logger_formatter_SUITE.erl index 8c13f0f908..83e3e6c40a 100644 --- a/lib/kernel/test/logger_formatter_SUITE.erl +++ b/lib/kernel/test/logger_formatter_SUITE.erl @@ -867,7 +867,7 @@ my_try(Fun) -> try Fun() catch C:R:S -> {C,R,hd(S)} end. timestamp() -> - erlang:system_time(microsecond). + logger:timestamp(). %% necessary? add_time(#{time:=_}=Meta) -> diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml index a2dd1f29b7..b145aac6ab 100644 --- a/lib/ssl/doc/src/ssl.xml +++ b/lib/ssl/doc/src/ssl.xml @@ -89,9 +89,12 @@ <datatype> <name name="active_msgs"/> <desc> - <p>When an TLS/DTLS socket is in active mode (the default), data from the + <p>When a TLS/DTLS socket is in active mode (the default), data from the socket is delivered to the owner of the socket in the form of messages as described above.</p> + <p>The <c>ssl_passive</c> message is sent only when the socket is in + <c>{active, N}</c> mode and the counter dropped to 0. It indicates + that the socket has transitioned to passive (<c>{active, false}</c>) mode.</p> </desc> </datatype> @@ -1204,8 +1207,8 @@ fun(srp, Username :: string(), UserState :: term()) -> marker="#handshake_cancel-1"><c>handshake_cancel/1</c></seealso>. </p> - <p> If the option <c>active</c> is set to <c>once</c> or <c>true</c> the - process owning the sslsocket will receive messages of type + <p> If the option <c>active</c> is set to <c>once</c>, <c>true</c> or an integer value, + the process owning the sslsocket will receive messages of type <seealso marker="#type-active_msgs"> active_msgs() </seealso> </p> </desc> @@ -1252,8 +1255,8 @@ fun(srp, Username :: string(), UserState :: term()) -> marker="#handshake_cancel-1"><c>handshake_cancel/1</c></seealso>. </p> - <p> If the option <c>active</c> is set to <c>once</c> or <c>true</c> the - process owning the sslsocket will receive messages of type + <p> If the option <c>active</c> is set to <c>once</c>, <c>true</c> or an integer value, + the process owning the sslsocket will receive messages of type <seealso marker="#type-active_msgs"> active_msgs() </seealso> </p> </desc> @@ -1414,8 +1417,8 @@ fun(srp, Username :: string(), UserState :: term()) -> <p>Performs the SSL/TLS/DTLS server-side handshake.</p> <p>Returns a new TLS/DTLS socket if the handshake is successful.</p> - <p> If the option <c>active</c> is set to <c>once</c> or <c>true</c> the - process owning the sslsocket will receive messages of type + <p> If the option <c>active</c> is set to <c>once</c>, <c>true</c> or an integer value, + the process owning the sslsocket will receive messages of type <seealso marker="#type-active_msgs"> active_msgs() </seealso> </p> </desc> @@ -1459,8 +1462,8 @@ fun(srp, Username :: string(), UserState :: term()) -> marker="#handshake_cancel-1"><c>handshake_cancel/1</c></seealso>. </p> - <p> If the option <c>active</c> is set to <c>once</c> or <c>true</c> the - process owning the sslsocket will receive messages of type + <p> If the option <c>active</c> is set to <c>once</c>, <c>true</c> or an integer value, + the process owning the sslsocket will receive messages of type <seealso marker="#type-active_msgs"> active_msgs() </seealso> </p> diff --git a/lib/ssl/src/dtls_packet_demux.erl b/lib/ssl/src/dtls_packet_demux.erl index afcd4af000..e0423b07b4 100644 --- a/lib/ssl/src/dtls_packet_demux.erl +++ b/lib/ssl/src/dtls_packet_demux.erl @@ -298,6 +298,9 @@ do_set_emulated_opts([], Opts) -> Opts; do_set_emulated_opts([{mode, Value} | Rest], Opts) -> do_set_emulated_opts(Rest, Opts#socket_options{mode = Value}); +do_set_emulated_opts([{active, N0} | Rest], Opts=#socket_options{active = Active}) when is_integer(N0) -> + N = tls_socket:update_active_n(N0, Active), + do_set_emulated_opts(Rest, Opts#socket_options{active = N}); do_set_emulated_opts([{active, Value} | Rest], Opts) -> do_set_emulated_opts(Rest, Opts#socket_options{active = Value}). diff --git a/lib/ssl/src/dtls_socket.erl b/lib/ssl/src/dtls_socket.erl index 2001afd02f..4d07372e31 100644 --- a/lib/ssl/src/dtls_socket.erl +++ b/lib/ssl/src/dtls_socket.erl @@ -38,7 +38,9 @@ listen(Port, #config{transport_info = TransportInfo, case dtls_listener_sup:start_child([Port, TransportInfo, emulated_socket_options(EmOpts, #socket_options{}), Options ++ internal_inet_values(), SslOpts]) of {ok, Pid} -> - {ok, #sslsocket{pid = {dtls, Config#config{dtls_handler = {Pid, Port}}}}}; + Socket = #sslsocket{pid = {dtls, Config#config{dtls_handler = {Pid, Port}}}}, + check_active_n(EmOpts, Socket), + {ok, Socket}; Err = {error, _} -> Err end. @@ -81,8 +83,9 @@ socket(Pids, Transport, Socket, ConnectionCb) -> #sslsocket{pid = Pids, %% "The name "fd" is keept for backwards compatibility fd = {Transport, Socket, ConnectionCb}}. -setopts(_, #sslsocket{pid = {dtls, #config{dtls_handler = {ListenPid, _}}}}, Options) -> - SplitOpts = tls_socket:split_options(Options), +setopts(_, Socket = #sslsocket{pid = {dtls, #config{dtls_handler = {ListenPid, _}}}}, Options) -> + SplitOpts = {_, EmOpts} = tls_socket:split_options(Options), + check_active_n(EmOpts, Socket), dtls_packet_demux:set_sock_opts(ListenPid, SplitOpts); %%% Following clauses will not be called for emulated options, they are handled in the connection process setopts(gen_udp, Socket, Options) -> @@ -90,6 +93,32 @@ setopts(gen_udp, Socket, Options) -> setopts(Transport, Socket, Options) -> Transport:setopts(Socket, Options). +check_active_n(EmulatedOpts, Socket = #sslsocket{pid = {dtls, #config{dtls_handler = {ListenPid, _}}}}) -> + %% We check the resulting options to send an ssl_passive message if necessary. + case proplists:lookup(active, EmulatedOpts) of + %% The provided value is out of bound. + {_, N} when is_integer(N), N < -32768 -> + throw(einval); + {_, N} when is_integer(N), N > 32767 -> + throw(einval); + {_, N} when is_integer(N) -> + {ok, #socket_options{active = Active}, _} = dtls_packet_demux:get_all_opts(ListenPid), + case Active of + Atom when is_atom(Atom), N =< 0 -> + self() ! {ssl_passive, Socket}; + %% The result of the addition is out of bound. + %% We do not need to check < -32768 because Active can't be below 1. + A when is_integer(A), A + N > 32767 -> + throw(einval); + A when is_integer(A), A + N =< 0 -> + self() ! {ssl_passive, Socket}; + _ -> + ok + end; + _ -> + ok + end. + getopts(_, #sslsocket{pid = {dtls, #config{dtls_handler = {ListenPid, _}}}}, Options) -> SplitOpts = tls_socket:split_options(Options), dtls_packet_demux:get_sock_opts(ListenPid, SplitOpts); @@ -161,9 +190,18 @@ emulated_socket_options(InetValues, #socket_options{ mode = proplists:get_value(mode, InetValues, Mode), packet = proplists:get_value(packet, InetValues, Packet), packet_size = proplists:get_value(packet_size, InetValues, PacketSize), - active = proplists:get_value(active, InetValues, Active) + active = emulated_active_option(InetValues, Active) }. +emulated_active_option([], Active) -> + Active; +emulated_active_option([{active, Active} | _], _) when Active =< 0 -> + false; +emulated_active_option([{active, Active} | _], _) -> + Active; +emulated_active_option([_|Tail], Active) -> + emulated_active_option(Tail, Active). + emulated_options([{mode, Value} = Opt |Opts], Inet, Emulated) -> validate_inet_option(mode, Value), emulated_options(Opts, Inet, [Opt | proplists:delete(mode, Emulated)]); @@ -185,6 +223,9 @@ validate_inet_option(mode, Value) when Value =/= list, Value =/= binary -> throw({error, {options, {mode,Value}}}); validate_inet_option(active, Value) + when Value >= -32768, Value =< 32767 -> + ok; +validate_inet_option(active, Value) when Value =/= true, Value =/= false, Value =/= once -> throw({error, {options, {active,Value}}}); validate_inet_option(_, _) -> diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl index 3516bd6d49..5a2d31ffc2 100644 --- a/lib/ssl/src/ssl.erl +++ b/lib/ssl/src/ssl.erl @@ -94,7 +94,7 @@ -type tls_client_option() :: client_option() | common_option() | socket_option() | transport_option(). -type tls_server_option() :: server_option() | common_option() | socket_option() | transport_option(). -type active_msgs() :: {ssl, sslsocket(), Data::binary() | list()} | {ssl_closed, sslsocket()} | - {ssl_error, sslsocket(), Reason::term()}. + {ssl_error, sslsocket(), Reason::term()} | {ssl_passive, sslsocket()}. -type transport_option() :: {cb_info, {CallbackModule::atom(), DataTag::atom(), ClosedTag::atom(), ErrTag::atom()}}. -type host() :: hostname() | ip_address(). diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index f194610d72..422c4c94ae 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -1383,10 +1383,22 @@ handle_call({get_opts, OptTags}, From, _, {keep_state_and_data, [{reply, From, OptsReply}]}; handle_call({set_opts, Opts0}, From, StateName, #state{static_env = #static_env{socket = Socket, - transport_cb = Transport}, + transport_cb = Transport, + tracker = Tracker}, + connection_env = + #connection_env{user_application = {_Mon, Pid}}, socket_options = Opts1 } = State0, Connection) -> {Reply, Opts} = set_socket_opts(Connection, Transport, Socket, Opts0, Opts1, []), + case {proplists:lookup(active, Opts0), Opts} of + {{_, N}, #socket_options{active=false}} when is_integer(N) -> + send_user( + Pid, + format_passive( + Connection:pids(State0), Transport, Socket, Tracker, Connection)); + _ -> + ok + end, State = State0#state{socket_options = Opts}, handle_active_option(Opts#socket_options.active, StateName, From, Reply, State); @@ -2516,6 +2528,30 @@ set_socket_opts(ConnectionCb, Transport, Socket, [{active, Active}| Opts], SockO Active == false -> set_socket_opts(ConnectionCb, Transport, Socket, Opts, SockOpts#socket_options{active = Active}, Other); +set_socket_opts(ConnectionCb, Transport, Socket, [{active, Active1} = Opt| Opts], + SockOpts=#socket_options{active = Active0}, Other) + when Active1 >= -32768, Active1 =< 32767 -> + Active = if + is_integer(Active0), Active0 + Active1 < -32768 -> + error; + is_integer(Active0), Active0 + Active1 =< 0 -> + false; + is_integer(Active0), Active0 + Active1 > 32767 -> + error; + Active1 =< 0 -> + false; + is_integer(Active0) -> + Active0 + Active1; + true -> + Active1 + end, + case Active of + error -> + {{error, {options, {socket_options, Opt}} }, SockOpts}; + _ -> + set_socket_opts(ConnectionCb, Transport, Socket, Opts, + SockOpts#socket_options{active = Active}, Other) + end; set_socket_opts(_,_, _, [{active, _} = Opt| _], SockOpts, _) -> {{error, {options, {socket_options, Opt}} }, SockOpts}; set_socket_opts(ConnectionCb, Transport, Socket, [Opt | Opts], SockOpts, Other) -> @@ -2795,6 +2831,14 @@ deliver_app_data( case Active of once -> SO#socket_options{active=false}; + 1 -> + send_user( + Pid, + format_passive( + CPids, Transport, Socket, Tracker, Connection)), + SO#socket_options{active=false}; + N when is_integer(N) -> + SO#socket_options{active=N - 1}; _ -> SO end. @@ -2831,6 +2875,9 @@ do_format_reply(list, Packet, _, Data) do_format_reply(list, _,_, Data) -> binary_to_list(Data). +format_passive(CPids, Transport, Socket, Tracker, Connection) -> + {ssl_passive, Connection:socket(CPids, Transport, Socket, Tracker)}. + header(0, <<>>) -> <<>>; header(_, <<>>) -> diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl index 6b1e3b6e07..260f603e90 100644 --- a/lib/ssl/src/ssl_handshake.erl +++ b/lib/ssl/src/ssl_handshake.erl @@ -39,7 +39,7 @@ -type oid() :: tuple(). -type public_key_params() :: #'Dss-Parms'{} | {namedCurve, oid()} | #'ECParameters'{} | term(). -type public_key_info() :: {oid(), #'RSAPublicKey'{} | integer() | #'ECPoint'{}, public_key_params()}. --type ssl_handshake_history() :: {[binary()], [binary()]}. +-type ssl_handshake_history() :: {iodata(), iodata()}. -type ssl_handshake() :: #server_hello{} | #server_hello_done{} | #certificate{} | #certificate_request{} | #client_key_exchange{} | #finished{} | #certificate_verify{} | @@ -76,7 +76,7 @@ handle_client_hello_extensions/9, %% Returns server hello extensions handle_server_hello_extensions/9, select_curve/2, select_curve/3, select_hashsign/4, select_hashsign/5, - select_hashsign_algs/3, empty_extensions/2, add_server_share/2 + select_hashsign_algs/3, empty_extensions/2, add_server_share/3 ]). -export([get_cert_params/1]). @@ -1150,12 +1150,18 @@ maybe_add_key_share(HelloExtensions, KeyShare) -> HelloExtensions#{key_share => #key_share_client_hello{ client_shares = ClientShares}}. -add_server_share(Extensions, KeyShare) -> +add_server_share(server_hello, Extensions, KeyShare) -> #key_share_server_hello{server_share = ServerShare0} = KeyShare, %% Keep only public keys ServerShare = kse_remove_private_key(ServerShare0), Extensions#{key_share => #key_share_server_hello{ - server_share = ServerShare}}. + server_share = ServerShare}}; +add_server_share(hello_retry_request, Extensions, + #key_share_server_hello{ + server_share = #key_share_entry{group = Group}}) -> + Extensions#{key_share => #key_share_hello_retry_request{ + selected_group = Group}}. + kse_remove_private_key(#key_share_entry{ group = Group, diff --git a/lib/ssl/src/tls_connection_1_3.erl b/lib/ssl/src/tls_connection_1_3.erl index de786d0875..71ac6a9310 100644 --- a/lib/ssl/src/tls_connection_1_3.erl +++ b/lib/ssl/src/tls_connection_1_3.erl @@ -113,27 +113,27 @@ wait_finished/4 ]). -start(internal, - #client_hello{} = Hello, - #state{connection_states = _ConnectionStates0, - ssl_options = #ssl_options{ciphers = _ServerCiphers, - signature_algs = _ServerSignAlgs, - signature_algs_cert = _SignatureSchemes, %% TODO: Check?? - supported_groups = _ServerGroups0, - versions = _Versions} = SslOpts, - session = #session{own_certificate = Cert}} = State0, - _Module) -> - Env = #{cert => Cert}, - case tls_handshake_1_3:handle_client_hello(Hello, SslOpts, Env) of +start(internal, + #change_cipher_spec{} = ChangeCipherSpec, State0, _Module) -> + case tls_handshake_1_3:do_start(ChangeCipherSpec, State0) of #alert{} = Alert -> ssl_connection:handle_own_alert(Alert, {3,4}, start, State0); - M -> - %% update connection_states with cipher - State = update_state(State0, M), - {next_state, negotiated, State, [{next_event, internal, M}]} - - end. + State1 -> + {Record, State} = tls_connection:next_record(State1), + tls_connection:next_event(?FUNCTION_NAME, Record, State) + end; +start(internal, #client_hello{} = Hello, State0, _Module) -> + case tls_handshake_1_3:do_start(Hello, State0) of + #alert{} = Alert -> + ssl_connection:handle_own_alert(Alert, {3,4}, start, State0); + {State, _, start} -> + {next_state, start, State, []}; + {State, Context, negotiated} -> + {next_state, negotiated, State, [{next_event, internal, Context}]} + end; +start(Type, Msg, State, Connection) -> + ssl_connection:handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection). negotiated(internal, Map, State0, _Module) -> @@ -166,24 +166,3 @@ wait_finished(internal, end; wait_finished(Type, Msg, State, Connection) -> ssl_connection:handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection). - - -update_state(#state{connection_states = ConnectionStates0, - connection_env = CEnv, - session = Session} = State, - #{cipher := Cipher, - key_share := KeyShare, - session_id := SessionId}) -> - #{security_parameters := SecParamsR0} = PendingRead = - maps:get(pending_read, ConnectionStates0), - #{security_parameters := SecParamsW0} = PendingWrite = - maps:get(pending_write, ConnectionStates0), - SecParamsR = ssl_cipher:security_parameters_1_3(SecParamsR0, Cipher), - SecParamsW = ssl_cipher:security_parameters_1_3(SecParamsW0, Cipher), - ConnectionStates = - ConnectionStates0#{pending_read => PendingRead#{security_parameters => SecParamsR}, - pending_write => PendingWrite#{security_parameters => SecParamsW}}, - State#state{connection_states = ConnectionStates, - key_share = KeyShare, - session = Session#session{session_id = SessionId}, - connection_env = CEnv#connection_env{negotiated_version = {3,4}}}. diff --git a/lib/ssl/src/tls_handshake_1_3.erl b/lib/ssl/src/tls_handshake_1_3.erl index 6a6de4b988..3bc1290361 100644 --- a/lib/ssl/src/tls_handshake_1_3.erl +++ b/lib/ssl/src/tls_handshake_1_3.erl @@ -36,38 +36,49 @@ %% Encode -export([encode_handshake/1, decode_handshake/2]). -%% Handshake --export([handle_client_hello/3]). - %% Create handshake messages -export([certificate/5, certificate_verify/4, encrypted_extensions/0, server_hello/4]). --export([do_negotiated/2, +-export([do_start/2, + do_negotiated/2, do_wait_finished/2]). %%==================================================================== %% Create handshake messages %%==================================================================== -server_hello(SessionId, KeyShare, ConnectionStates, _Map) -> +server_hello(MsgType, SessionId, KeyShare, ConnectionStates) -> #{security_parameters := SecParams} = ssl_record:pending_connection_state(ConnectionStates, read), - Extensions = server_hello_extensions(KeyShare), + Extensions = server_hello_extensions(MsgType, KeyShare), #server_hello{server_version = {3,3}, %% legacy_version cipher_suite = SecParams#security_parameters.cipher_suite, compression_method = 0, %% legacy attribute - random = SecParams#security_parameters.server_random, + random = server_hello_random(MsgType, SecParams), session_id = SessionId, extensions = Extensions }. -server_hello_extensions(KeyShare) -> +server_hello_extensions(MsgType, KeyShare) -> SupportedVersions = #server_hello_selected_version{selected_version = {3,4}}, Extensions = #{server_hello_selected_version => SupportedVersions}, - ssl_handshake:add_server_share(Extensions, KeyShare). + ssl_handshake:add_server_share(MsgType, Extensions, KeyShare). + +server_hello_random(server_hello, #security_parameters{server_random = Random}) -> + Random; +%% For reasons of backward compatibility with middleboxes (see +%% Appendix D.4), the HelloRetryRequest message uses the same structure +%% as the ServerHello, but with Random set to the special value of the +%% SHA-256 of "HelloRetryRequest": +%% +%% CF 21 AD 74 E5 9A 61 11 BE 1D 8C 02 1E 65 B8 91 +%% C2 A2 11 16 7A BB 8C 5E 07 9E 09 E2 C8 A8 33 9C +server_hello_random(hello_retry_request, _) -> + crypto:hash(sha256, "HelloRetryRequest"). + %% TODO: implement support for encrypted_extensions encrypted_extensions() -> @@ -75,6 +86,7 @@ encrypted_extensions() -> extensions = #{} }. + %% TODO: use maybe monad for error handling! %% enum { %% X509(0), @@ -361,20 +373,44 @@ build_content(Context, THash) -> Prefix = binary:copy(<<32>>, 64), <<Prefix/binary,Context/binary,?BYTE(0),THash/binary>>. + %%==================================================================== %% Handle handshake messages %%==================================================================== -handle_client_hello(#client_hello{cipher_suites = ClientCiphers, - session_id = SessionId, - extensions = Extensions} = _Hello, - #ssl_options{ciphers = ServerCiphers, - signature_algs = ServerSignAlgs, - signature_algs_cert = _SignatureSchemes, %% TODO: Check?? - supported_groups = ServerGroups0} = _SslOpts, - Env) -> - Cert = maps:get(cert, Env, undefined), +do_start(#change_cipher_spec{}, + #state{connection_states = _ConnectionStates0, + session = #session{session_id = _SessionId, + own_certificate = _OwnCert}, + ssl_options = #ssl_options{} = _SslOpts, + key_share = _KeyShare, + handshake_env = #handshake_env{tls_handshake_history = _HHistory0}, + static_env = #static_env{ + cert_db = _CertDbHandle, + cert_db_ref = _CertDbRef, + socket = _Socket, + transport_cb = _Transport} + } = State0) -> + %% {Ref,Maybe} = maybe(), + + try + + State0 + + catch + {_Ref, {state_not_implemented, State}} -> + ?ALERT_REC(?FATAL, ?INTERNAL_ERROR, {state_not_implemented, State}) + end; +do_start(#client_hello{cipher_suites = ClientCiphers, + session_id = SessionId, + extensions = Extensions} = _Hello, + #state{connection_states = _ConnectionStates0, + ssl_options = #ssl_options{ciphers = ServerCiphers, + signature_algs = ServerSignAlgs, + signature_algs_cert = _SignatureSchemes, %% TODO: check! + supported_groups = ServerGroups0}, + session = #session{own_certificate = Cert}} = State0) -> ClientGroups0 = maps:get(elliptic_curves, Extensions, undefined), ClientGroups = get_supported_groups(ClientGroups0), @@ -398,11 +434,9 @@ handle_client_hello(#client_hello{cipher_suites = ClientCiphers, %% and a signature algorithm/certificate pair to authenticate itself to %% the client. Cipher = Maybe(select_cipher_suite(ClientCiphers, ServerCiphers)), - Group = Maybe(select_server_group(ServerGroups, ClientGroups)), + Groups = Maybe(select_common_groups(ServerGroups, ClientGroups)), Maybe(validate_key_share(ClientGroups, ClientShares)), - ClientPubKey = Maybe(get_client_public_key(Group, ClientShares)), - {PublicKeyAlgo, SignAlgo, SignHash} = get_certificate_params(Cert), %% Check if client supports signature algorithm of server certificate @@ -411,14 +445,31 @@ handle_client_hello(#client_hello{cipher_suites = ClientCiphers, %% Select signature algorithm (used in CertificateVerify message). SelectedSignAlg = Maybe(select_sign_algo(PublicKeyAlgo, ClientSignAlgs, ServerSignAlgs)), + %% Select client public key. If no public key found in ClientShares or + %% ClientShares is empty, trigger HelloRetryRequest as we were able + %% to find an acceptable set of parameters but the ClientHello does not + %% contain sufficient information. + {Group, ClientPubKey} = get_client_public_key(Groups, ClientShares), + %% Generate server_share KeyShare = ssl_cipher:generate_server_share(Group), - _Ret = #{cipher => Cipher, - group => Group, - sign_alg => SelectedSignAlg, - client_share => ClientPubKey, - key_share => KeyShare, - session_id => SessionId} + + State1 = update_start_state(State0, Cipher, KeyShare, SessionId), + + %% 4.1.4. Hello Retry Request + %% + %% The server will send this message in response to a ClientHello + %% message if it is able to find an acceptable set of parameters but the + %% ClientHello does not contain sufficient information to proceed with + %% the handshake. + {State2, NextState} = + Maybe(send_hello_retry_request(State1, ClientPubKey, KeyShare, SessionId)), + + %% TODO: Add Context to state? + Context = #{group => Group, + sign_alg => SelectedSignAlg, + client_share => ClientPubKey}, + {State2, Context, NextState} %% TODO: %% - session handling @@ -430,9 +481,6 @@ handle_client_hello(#client_hello{cipher_suites = ClientCiphers, ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_groups); {Ref, illegal_parameter} -> ?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER); - {Ref, {hello_retry_request, _Group0}} -> - %% TODO - ?ALERT_REC(?FATAL, ?INTERNAL_ERROR, "hello_retry_request not implemented"); {Ref, no_suitable_cipher} -> ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_cipher); {Ref, {insufficient_security, no_suitable_signature_algorithm}} -> @@ -445,7 +493,7 @@ handle_client_hello(#client_hello{cipher_suites = ClientCiphers, do_negotiated(#{client_share := ClientKey, group := SelectedGroup, sign_alg := SignatureScheme - } = Map, + }, #state{connection_states = ConnectionStates0, session = #session{session_id = SessionId, own_certificate = OwnCert}, @@ -464,7 +512,7 @@ do_negotiated(#{client_share := ClientKey, try %% Create server_hello %% Extensions: supported_versions, key_share, (pre_shared_key) - ServerHello = server_hello(SessionId, KeyShare, ConnectionStates0, Map), + ServerHello = server_hello(server_hello, SessionId, KeyShare, ConnectionStates0), {State1, _} = tls_connection:send_handshake(ServerHello, State0), @@ -597,6 +645,56 @@ compare_verify_data(_, _) -> {error, decrypt_error}. +send_hello_retry_request(#state{connection_states = ConnectionStates0} = State0, + no_suitable_key, KeyShare, SessionId) -> + ServerHello = server_hello(hello_retry_request, SessionId, KeyShare, ConnectionStates0), + {State1, _} = tls_connection:send_handshake(ServerHello, State0), + + %% TODO: Fix handshake history! + State2 = replace_ch1_with_message_hash(State1), + + {ok, {State2, start}}; +send_hello_retry_request(State0, _, _, _) -> + %% Suitable key found. + {ok, {State0, negotiated}}. + + +%% 4.4.1. The Transcript Hash +%% +%% As an exception to this general rule, when the server responds to a +%% ClientHello with a HelloRetryRequest, the value of ClientHello1 is +%% replaced with a special synthetic handshake message of handshake type +%% "message_hash" containing Hash(ClientHello1). I.e., +%% +%% Transcript-Hash(ClientHello1, HelloRetryRequest, ... Mn) = +%% Hash(message_hash || /* Handshake type */ +%% 00 00 Hash.length || /* Handshake message length (bytes) */ +%% Hash(ClientHello1) || /* Hash of ClientHello1 */ +%% HelloRetryRequest || ... || Mn) +%% +%% NOTE: Hash.length is used in practice (openssl) and not message length! +%% It is most probably a fault in the RFC. +replace_ch1_with_message_hash(#state{connection_states = ConnectionStates, + handshake_env = + #handshake_env{ + tls_handshake_history = + {[HRR,CH1|HHistory], LM}} = HSEnv} = State0) -> + #{security_parameters := SecParamsR} = + ssl_record:pending_connection_state(ConnectionStates, read), + #security_parameters{prf_algorithm = HKDFAlgo} = SecParamsR, + MessageHash = message_hash(CH1, HKDFAlgo), + State0#state{handshake_env = + HSEnv#handshake_env{ + tls_handshake_history = + {[HRR,MessageHash|HHistory], LM}}}. + + +message_hash(ClientHello1, HKDFAlgo) -> + [?MESSAGE_HASH, + 0,0,ssl_cipher:hash_size(HKDFAlgo), + crypto:hash(HKDFAlgo, ClientHello1)]. + + calculate_handshake_secrets(ClientKey, SelectedGroup, KeyShare, #state{connection_states = ConnectionStates, handshake_env = @@ -721,6 +819,24 @@ update_connection_state(ConnectionState = #{security_parameters := SecurityParam cipher_state => cipher_init(Key, IV, FinishedKey)}. +update_start_state(#state{connection_states = ConnectionStates0, + connection_env = CEnv, + session = Session} = State, + Cipher, KeyShare, SessionId) -> + #{security_parameters := SecParamsR0} = PendingRead = + maps:get(pending_read, ConnectionStates0), + #{security_parameters := SecParamsW0} = PendingWrite = + maps:get(pending_write, ConnectionStates0), + SecParamsR = ssl_cipher:security_parameters_1_3(SecParamsR0, Cipher), + SecParamsW = ssl_cipher:security_parameters_1_3(SecParamsW0, Cipher), + ConnectionStates = + ConnectionStates0#{pending_read => PendingRead#{security_parameters => SecParamsR}, + pending_write => PendingWrite#{security_parameters => SecParamsW}}, + State#state{connection_states = ConnectionStates, + key_share = KeyShare, + session = Session#session{session_id = SessionId}, + connection_env = CEnv#connection_env{negotiated_version = {3,4}}}. + cipher_init(Key, IV, FinishedKey) -> #cipher_state{key = Key, @@ -733,17 +849,19 @@ cipher_init(Key, IV, FinishedKey) -> %% "supported_groups" and the groups supported by the server, then the %% server MUST abort the handshake with a "handshake_failure" or an %% "insufficient_security" alert. -select_server_group(_, []) -> +select_common_groups(_, []) -> {error, {insufficient_security, no_suitable_groups}}; -select_server_group(ServerGroups, [C|ClientGroups]) -> - case lists:member(C, ServerGroups) of - true -> - {ok, C}; - false -> - select_server_group(ServerGroups, ClientGroups) +select_common_groups(ServerGroups, ClientGroups) -> + Fun = fun(E) -> lists:member(E, ClientGroups) end, + case lists:filter(Fun, ServerGroups) of + [] -> + {error, {insufficient_security, no_suitable_groups}}; + L -> + {ok, L} end. + %% RFC 8446 - 4.2.8. Key Share %% This vector MAY be empty if the client is requesting a %% HelloRetryRequest. Each KeyShareEntry value MUST correspond to a @@ -771,20 +889,36 @@ validate_key_share([_|ClientGroups], [_|_] = ClientShares) -> validate_key_share(ClientGroups, ClientShares). -get_client_public_key(Group, ClientShares) -> +get_client_public_key([Group|_] = Groups, ClientShares) -> + get_client_public_key(Groups, ClientShares, Group). +%% +get_client_public_key(_, [], PreferredGroup) -> + {PreferredGroup, no_suitable_key}; +get_client_public_key([], _, PreferredGroup) -> + {PreferredGroup, no_suitable_key}; +get_client_public_key([Group|Groups], ClientShares, PreferredGroup) -> case lists:keysearch(Group, 2, ClientShares) of {value, {_, _, ClientPublicKey}} -> - {ok, ClientPublicKey}; + {Group, ClientPublicKey}; false -> - %% 4.1.4. Hello Retry Request - %% - %% The server will send this message in response to a ClientHello - %% message if it is able to find an acceptable set of parameters but the - %% ClientHello does not contain sufficient information to proceed with - %% the handshake. - {error, {hello_retry_request, Group}} + get_client_public_key(Groups, ClientShares, PreferredGroup) end. + +%% get_client_public_key(Group, ClientShares) -> +%% case lists:keysearch(Group, 2, ClientShares) of +%% {value, {_, _, ClientPublicKey}} -> +%% ClientPublicKey; +%% false -> +%% %% 4.1.4. Hello Retry Request +%% %% +%% %% The server will send this message in response to a ClientHello +%% %% message if it is able to find an acceptable set of parameters but the +%% %% ClientHello does not contain sufficient information to proceed with +%% %% the handshake. +%% no_suitable_key +%% end. + select_cipher_suite([], _) -> {error, no_suitable_cipher}; select_cipher_suite([Cipher|ClientCiphers], ServerCiphers) -> diff --git a/lib/ssl/src/tls_socket.erl b/lib/ssl/src/tls_socket.erl index a391bc53de..c3c41d3e12 100644 --- a/lib/ssl/src/tls_socket.erl +++ b/lib/ssl/src/tls_socket.erl @@ -32,6 +32,7 @@ emulated_socket_options/2, get_emulated_opts/1, set_emulated_opts/2, get_all_opts/1, handle_call/3, handle_cast/2, handle_info/2, code_change/3]). +-export([update_active_n/2]). -record(state, { emulated_opts, @@ -51,7 +52,9 @@ listen(Transport, Port, #config{transport_info = {Transport, _, _, _}, case Transport:listen(Port, Options ++ internal_inet_values()) of {ok, ListenSocket} -> {ok, Tracker} = inherit_tracker(ListenSocket, EmOpts, SslOpts), - {ok, #sslsocket{pid = {ListenSocket, Config#config{emulated = Tracker}}}}; + Socket = #sslsocket{pid = {ListenSocket, Config#config{emulated = Tracker}}}, + check_active_n(EmOpts, Socket), + {ok, Socket}; Err = {error, _} -> Err end. @@ -117,14 +120,16 @@ socket(Pids, Transport, Socket, ConnectionCb, Tracker) -> #sslsocket{pid = Pids, %% "The name "fd" is keept for backwards compatibility fd = {Transport, Socket, ConnectionCb, Tracker}}. -setopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) -> +setopts(gen_tcp, Socket = #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) -> {SockOpts, EmulatedOpts} = split_options(Options), ok = set_emulated_opts(Tracker, EmulatedOpts), + check_active_n(EmulatedOpts, Socket), inet:setopts(ListenSocket, SockOpts); -setopts(_, #sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_}, +setopts(_, Socket = #sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_}, emulated = Tracker}}}, Options) -> {SockOpts, EmulatedOpts} = split_options(Options), ok = set_emulated_opts(Tracker, EmulatedOpts), + check_active_n(EmulatedOpts, Socket), Transport:setopts(ListenSocket, SockOpts); %%% Following clauses will not be called for emulated options, they are handled in the connection process setopts(gen_tcp, Socket, Options) -> @@ -132,6 +137,31 @@ setopts(gen_tcp, Socket, Options) -> setopts(Transport, Socket, Options) -> Transport:setopts(Socket, Options). +check_active_n(EmulatedOpts, Socket = #sslsocket{pid = {_, #config{emulated = Tracker}}}) -> + %% We check the resulting options to send an ssl_passive message if necessary. + case proplists:lookup(active, EmulatedOpts) of + %% The provided value is out of bound. + {_, N} when is_integer(N), N < -32768 -> + throw(einval); + {_, N} when is_integer(N), N > 32767 -> + throw(einval); + {_, N} when is_integer(N) -> + case get_emulated_opts(Tracker, [active]) of + [{_, false}] -> + self() ! {ssl_passive, Socket}, + ok; + %% The result of the addition is out of bound. + [{_, A}] when is_integer(A), A < -32768 -> + throw(einval); + [{_, A}] when is_integer(A), A > 32767 -> + throw(einval); + _ -> + ok + end; + _ -> + ok + end. + getopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) -> {SockOptNames, EmulatedOptNames} = split_options(Options), EmulatedOpts = get_emulated_opts(Tracker, EmulatedOptNames), @@ -209,7 +239,7 @@ start_link(Port, SockOpts, SslOpts) -> init([Port, Opts, SslOpts]) -> process_flag(trap_exit, true), true = link(Port), - {ok, #state{emulated_opts = Opts, port = Port, ssl_opts = SslOpts}}. + {ok, #state{emulated_opts = do_set_emulated_opts(Opts, []), port = Port, ssl_opts = SslOpts}}. %%-------------------------------------------------------------------- -spec handle_call(msg(), from(), #state{}) -> {reply, reply(), #state{}}. @@ -304,9 +334,24 @@ split_options([Name | Opts], Emu, SocketOptNames, EmuOptNames) -> do_set_emulated_opts([], Opts) -> Opts; +do_set_emulated_opts([{active, N0} | Rest], Opts) when is_integer(N0) -> + N = update_active_n(N0, proplists:get_value(active, Opts, false)), + do_set_emulated_opts(Rest, [{active, N} | proplists:delete(active, Opts)]); do_set_emulated_opts([{Name,_} = Opt | Rest], Opts) -> do_set_emulated_opts(Rest, [Opt | proplists:delete(Name, Opts)]). +update_active_n(New, Current) -> + if + is_integer(Current), New + Current =< 0 -> + false; + is_integer(Current) -> + New + Current; + New =< 0 -> + false; + true -> + New + end. + get_socket_opts(_, [], _) -> []; get_socket_opts(ListenSocket, SockOptNames, Cb) -> @@ -366,6 +411,9 @@ validate_inet_option(header, Value) when not is_integer(Value) -> throw({error, {options, {header,Value}}}); validate_inet_option(active, Value) + when Value >= -32768, Value =< 32767 -> + ok; +validate_inet_option(active, Value) when Value =/= true, Value =/= false, Value =/= once -> throw({error, {options, {active,Value}}}); validate_inet_option(_, _) -> diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl index f109d85e49..292916692d 100644 --- a/lib/ssl/test/ssl_basic_SUITE.erl +++ b/lib/ssl/test/ssl_basic_SUITE.erl @@ -167,6 +167,7 @@ api_tests() -> accept_pool, prf, socket_options, + active_n, cipher_suites, handshake_continue, handshake_continue_timeout, @@ -246,6 +247,7 @@ error_handling_tests()-> [close_transport_accept, recv_active, recv_active_once, + recv_active_n, recv_error_handling, call_in_error_state, close_in_error_state, @@ -277,7 +279,9 @@ tls13_test_group() -> tls_record_1_3_encode_decode, tls13_finished_verify_data, tls13_1_RTT_handshake, - tls13_basic_ssl_s_client]. + tls13_basic_ssl_server_openssl_client, + tls13_custom_groups_ssl_server_openssl_client, + tls13_hello_retry_request_ssl_server_openssl_client]. %%-------------------------------------------------------------------- init_per_suite(Config0) -> @@ -1991,7 +1995,7 @@ recv_active(Config) when is_list(Config) -> %%-------------------------------------------------------------------- recv_active_once() -> - [{doc,"Test recv on active socket"}]. + [{doc,"Test recv on active (once) socket"}]. recv_active_once(Config) when is_list(Config) -> ClientOpts = ssl_test_lib:ssl_options(client_opts, Config), @@ -2016,6 +2020,178 @@ recv_active_once(Config) when is_list(Config) -> ssl_test_lib:close(Client). %%-------------------------------------------------------------------- +recv_active_n() -> + [{doc,"Test recv on active (n) socket"}]. + +recv_active_n(Config) when is_list(Config) -> + ClientOpts = ssl_test_lib:ssl_options(client_opts, Config), + ServerOpts = ssl_test_lib:ssl_options(server_opts, Config), + {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config), + Server = + ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, + {from, self()}, + {mfa, {?MODULE, try_recv_active_once, []}}, + {options, [{active, 1} | ServerOpts]}]), + Port = ssl_test_lib:inet_port(Server), + Client = + ssl_test_lib:start_client([{node, ClientNode}, {port, Port}, + {host, Hostname}, + {from, self()}, + {mfa, {?MODULE, try_recv_active_once, []}}, + {options, [{active, 1} | ClientOpts]}]), + + ssl_test_lib:check_result(Server, ok, Client, ok), + + ssl_test_lib:close(Server), + ssl_test_lib:close(Client). + +%%-------------------------------------------------------------------- +%% Test case adapted from gen_tcp_misc_SUITE. +active_n() -> + [{doc,"Test {active,N} option"}]. + +active_n(Config) when is_list(Config) -> + ClientOpts = ssl_test_lib:ssl_options(client_opts, Config), + ServerOpts = ssl_test_lib:ssl_options(server_opts, Config), + Port = ssl_test_lib:inet_port(node()), + N = 3, + LS = ok(ssl:listen(Port, [{active,N}|ServerOpts])), + [{active,N}] = ok(ssl:getopts(LS, [active])), + active_n_common(LS, N), + Self = self(), + spawn_link(fun() -> + S0 = ok(ssl:transport_accept(LS)), + {ok, S} = ssl:handshake(S0), + ok = ssl:setopts(S, [{active,N}]), + [{active,N}] = ok(ssl:getopts(S, [active])), + ssl:controlling_process(S, Self), + Self ! {server, S} + end), + C = ok(ssl:connect("localhost", Port, [{active,N}|ClientOpts])), + [{active,N}] = ok(ssl:getopts(C, [active])), + S = receive + {server, S0} -> S0 + after + 1000 -> + exit({error, connect}) + end, + active_n_common(C, N), + active_n_common(S, N), + ok = ssl:setopts(C, [{active,N}]), + ok = ssl:setopts(S, [{active,N}]), + ReceiveMsg = fun(Socket, Msg) -> + receive + {ssl,Socket,Msg} -> + ok; + {ssl,Socket,Begin} -> + receive + {ssl,Socket,End} -> + Msg = Begin ++ End, + ok + after 1000 -> + exit(timeout) + end + after 1000 -> + exit(timeout) + end + end, + repeat(3, fun(I) -> + Msg = "message "++integer_to_list(I), + ok = ssl:send(C, Msg), + ReceiveMsg(S, Msg), + ok = ssl:send(S, Msg), + ReceiveMsg(C, Msg) + end), + receive + {ssl_passive,S} -> + [{active,false}] = ok(ssl:getopts(S, [active])) + after + 1000 -> + exit({error,ssl_passive}) + end, + receive + {ssl_passive,C} -> + [{active,false}] = ok(ssl:getopts(C, [active])) + after + 1000 -> + exit({error,ssl_passive}) + end, + LS2 = ok(ssl:listen(0, [{active,0}])), + receive + {ssl_passive,LS2} -> + [{active,false}] = ok(ssl:getopts(LS2, [active])) + after + 1000 -> + exit({error,ssl_passive}) + end, + ok = ssl:close(LS2), + ok = ssl:close(C), + ok = ssl:close(S), + ok = ssl:close(LS), + ok. + +active_n_common(S, N) -> + ok = ssl:setopts(S, [{active,-N}]), + receive + {ssl_passive, S} -> ok + after + 1000 -> + error({error,ssl_passive_failure}) + end, + [{active,false}] = ok(ssl:getopts(S, [active])), + ok = ssl:setopts(S, [{active,0}]), + receive + {ssl_passive, S} -> ok + after + 1000 -> + error({error,ssl_passive_failure}) + end, + ok = ssl:setopts(S, [{active,32767}]), + {error,{options,_}} = ssl:setopts(S, [{active,1}]), + {error,{options,_}} = ssl:setopts(S, [{active,-32769}]), + ok = ssl:setopts(S, [{active,-32768}]), + receive + {ssl_passive, S} -> ok + after + 1000 -> + error({error,ssl_passive_failure}) + end, + [{active,false}] = ok(ssl:getopts(S, [active])), + ok = ssl:setopts(S, [{active,N}]), + ok = ssl:setopts(S, [{active,true}]), + [{active,true}] = ok(ssl:getopts(S, [active])), + receive + _ -> error({error,active_n}) + after + 0 -> + ok + end, + ok = ssl:setopts(S, [{active,N}]), + ok = ssl:setopts(S, [{active,once}]), + [{active,once}] = ok(ssl:getopts(S, [active])), + receive + _ -> error({error,active_n}) + after + 0 -> + ok + end, + {error,{options,_}} = ssl:setopts(S, [{active,32768}]), + ok = ssl:setopts(S, [{active,false}]), + [{active,false}] = ok(ssl:getopts(S, [active])), + ok. + +ok({ok,V}) -> V. + +repeat(N, Fun) -> + repeat(N, N, Fun). + +repeat(N, T, Fun) when is_integer(N), N > 0 -> + Fun(T-N), + repeat(N-1, T, Fun); +repeat(_, _, _) -> + ok. + +%%-------------------------------------------------------------------- dh_params() -> [{doc,"Test to specify DH-params file in server."}]. @@ -5341,10 +5517,10 @@ tls13_finished_verify_data(_Config) -> FinishedKey = tls_v1:finished_key(BaseKey, sha256), VerifyData = tls_v1:finished_verify_data(FinishedKey, sha256, Messages). -tls13_basic_ssl_s_client() -> +tls13_basic_ssl_server_openssl_client() -> [{doc,"Test TLS 1.3 basic connection between ssl server and openssl s_client"}]. -tls13_basic_ssl_s_client(Config) -> +tls13_basic_ssl_server_openssl_client(Config) -> ClientOpts = ssl_test_lib:ssl_options(client_rsa_opts, Config), ServerOpts0 = ssl_test_lib:ssl_options(server_rsa_opts, Config), %% Set versions @@ -5363,6 +5539,55 @@ tls13_basic_ssl_s_client(Config) -> ssl_test_lib:close(Server), ssl_test_lib:close_port(Client). +tls13_custom_groups_ssl_server_openssl_client() -> + [{doc,"Test that ssl server can select a common group for key-exchange"}]. + +tls13_custom_groups_ssl_server_openssl_client(Config) -> + ClientOpts0 = ssl_test_lib:ssl_options(client_rsa_opts, Config), + ServerOpts0 = ssl_test_lib:ssl_options(server_rsa_opts, Config), + %% Set versions + ServerOpts = [{versions, ['tlsv1.2','tlsv1.3']}, + {supported_groups, [x448, secp256r1, secp384r1]}|ServerOpts0], + {_ClientNode, ServerNode, _Hostname} = ssl_test_lib:run_where(Config), + + Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, + {from, self()}, + {mfa, {ssl_test_lib, send_recv_result_active, []}}, + {options, ServerOpts}]), + Port = ssl_test_lib:inet_port(Server), + + ClientOpts = [{groups,"P-384:P-256:X25519"}|ClientOpts0], + Client = ssl_test_lib:start_basic_client(openssl, 'tlsv1.3', Port, ClientOpts), + + ssl_test_lib:check_result(Server, ok), + ssl_test_lib:close(Server), + ssl_test_lib:close_port(Client). + +tls13_hello_retry_request_ssl_server_openssl_client() -> + [{doc,"Test that ssl server can request a new group when the client's first key share" + "is not supported"}]. + +tls13_hello_retry_request_ssl_server_openssl_client(Config) -> + ClientOpts0 = ssl_test_lib:ssl_options(client_rsa_opts, Config), + ServerOpts0 = ssl_test_lib:ssl_options(server_rsa_opts, Config), + %% Set versions + ServerOpts = [{versions, ['tlsv1.2','tlsv1.3']}, + {supported_groups, [x448, x25519]}|ServerOpts0], + {_ClientNode, ServerNode, _Hostname} = ssl_test_lib:run_where(Config), + + Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, + {from, self()}, + {mfa, {ssl_test_lib, send_recv_result_active, []}}, + {options, ServerOpts}]), + Port = ssl_test_lib:inet_port(Server), + + ClientOpts = [{groups,"P-256:X25519"}|ClientOpts0], + Client = ssl_test_lib:start_basic_client(openssl, 'tlsv1.3', Port, ClientOpts), + + ssl_test_lib:check_result(Server, ok), + ssl_test_lib:close(Server), + ssl_test_lib:close_port(Client). + %%-------------------------------------------------------------------- %% Internal functions ------------------------------------------------ diff --git a/lib/ssl/test/ssl_test_lib.erl b/lib/ssl/test/ssl_test_lib.erl index c921dcae4c..f628b4e6d4 100644 --- a/lib/ssl/test/ssl_test_lib.erl +++ b/lib/ssl/test/ssl_test_lib.erl @@ -1110,12 +1110,19 @@ start_basic_client(openssl, Version, Port, ClientOpts) -> Cert = proplists:get_value(certfile, ClientOpts), Key = proplists:get_value(keyfile, ClientOpts), CA = proplists:get_value(cacertfile, ClientOpts), + Groups0 = proplists:get_value(groups, ClientOpts), Exe = "openssl", - Args = ["s_client", "-verify", "2", "-port", integer_to_list(Port), + Args0 = ["s_client", "-verify", "2", "-port", integer_to_list(Port), ssl_test_lib:version_flag(Version), "-cert", Cert, "-CAfile", CA, "-key", Key, "-host","localhost", "-msg", "-debug"], - + Args = + case Groups0 of + undefined -> + Args0; + G -> + Args0 ++ ["-groups", G] + end, OpenSslPort = ssl_test_lib:portable_open_port(Exe, Args), true = port_command(OpenSslPort, "Hello world"), OpenSslPort. diff --git a/lib/stdlib/doc/src/gen_statem.xml b/lib/stdlib/doc/src/gen_statem.xml index 0cad5929ca..d4a4ba268b 100644 --- a/lib/stdlib/doc/src/gen_statem.xml +++ b/lib/stdlib/doc/src/gen_statem.xml @@ -320,12 +320,13 @@ erlang:'!' -----> Module:StateName/3 </p> <p> There is also a server start option - <seealso marker="#type-hibernate_after_opt"> + <seealso marker="#type-enter_loop_opt"> <c>{hibernate_after, Timeout}</c> </seealso> for - <seealso marker="#start/3"><c>start/3,4</c></seealso> or - <seealso marker="#start_link/3"><c>start_link/3,4</c></seealso> + <seealso marker="#start/3"><c>start/3,4</c></seealso>, + <seealso marker="#start_link/3"><c>start_link/3,4</c></seealso> or + <seealso marker="#enter_loop/4"><c>enter_loop/4,5,6</c></seealso>, that may be used to automatically hibernate the server. </p> </description> diff --git a/lib/stdlib/src/calendar.erl b/lib/stdlib/src/calendar.erl index 3a083d9fda..3a8fe2211b 100644 --- a/lib/stdlib/src/calendar.erl +++ b/lib/stdlib/src/calendar.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2018. All Rights Reserved. +%% Copyright Ericsson AB 1996-2019. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -357,13 +357,17 @@ rfc3339_to_system_time(DateTimeString) -> rfc3339_to_system_time(DateTimeString, Options) -> Unit = proplists:get_value(unit, Options, second), %% _T is the character separating the date and the time: - {DateStr, [_T|TimeStr]} = lists:split(10, DateTimeString), - {TimeStr2, TimeStr3} = lists:split(8, TimeStr), - {ok, [Hour, Min, Sec], []} = io_lib:fread("~d:~d:~d", TimeStr2), - {ok, [Year, Month, Day], []} = io_lib:fread("~d-~d-~d", DateStr), + [Y1, Y2, Y3, Y4, $-, Mon1, Mon2, $-, D1, D2, _T, + H1, H2, $:, Min1, Min2, $:, S1, S2 | TimeStr] = DateTimeString, + Hour = list_to_integer([H1, H2]), + Min = list_to_integer([Min1, Min2]), + Sec = list_to_integer([S1, S2]), + Year = list_to_integer([Y1, Y2, Y3, Y4]), + Month = list_to_integer([Mon1, Mon2]), + Day = list_to_integer([D1, D2]), DateTime = {{Year, Month, Day}, {Hour, Min, Sec}}, IsFractionChar = fun(C) -> C >= $0 andalso C =< $9 orelse C =:= $. end, - {FractionStr, UtcOffset} = lists:splitwith(IsFractionChar, TimeStr3), + {FractionStr, UtcOffset} = lists:splitwith(IsFractionChar, TimeStr), Time = datetime_to_system_time(DateTime), Secs = Time - offset_adjustment(Time, second, UtcOffset), check(DateTimeString, Options, Secs), @@ -451,8 +455,9 @@ system_time_to_rfc3339(Time, Options) -> DateTime = system_time_to_datetime(Secs), {{Year, Month, Day}, {Hour, Min, Sec}} = DateTime, FractionStr = fraction_str(Factor, AdjustedTime), - flat_fwrite("~4.10.0B-~2.10.0B-~2.10.0B~c~2.10.0B:~2.10.0B:~2.10.0B~s~s", - [Year, Month, Day, T, Hour, Min, Sec, FractionStr, Offset]). + L = [pad4(Year), "-", pad2(Month), "-", pad2(Day), [T], + pad2(Hour), ":", pad2(Min), ":", pad2(Sec), FractionStr, Offset], + lists:append(L). %% time_difference(T1, T2) = Tdiff %% @@ -680,7 +685,7 @@ offset(OffsetOption, Secs0) when OffsetOption =:= ""; Secs = abs(Secs0), Hour = Secs div 3600, Min = (Secs rem 3600) div 60, - io_lib:fwrite("~c~2.10.0B:~2.10.0B", [Sign, Hour, Min]); + [Sign | lists:append([pad2(Hour), ":", pad2(Min)])]; offset(OffsetOption, _Secs) -> OffsetOption. @@ -695,8 +700,10 @@ offset_string_adjustment(_Time, _Unit, "Z") -> 0; offset_string_adjustment(_Time, _Unit, "z") -> 0; -offset_string_adjustment(_Time, _Unit, [Sign|Tz]) -> - {ok, [Hour, Min], []} = io_lib:fread("~d:~d", Tz), +offset_string_adjustment(_Time, _Unit, Tz) -> + [Sign, H1, H2, $:, M1, M2] = Tz, + Hour = list_to_integer([H1, H2]), + Min = list_to_integer([M1, M2]), Adjustment = 3600 * Hour + 60 * Min, case Sign of $- -> -Adjustment; @@ -704,8 +711,9 @@ offset_string_adjustment(_Time, _Unit, [Sign|Tz]) -> end. local_offset(SystemTime, Unit) -> - LocalTime = system_time_to_local_time(SystemTime, Unit), + %% Not optimized for special cases. UniversalTime = system_time_to_universal_time(SystemTime, Unit), + LocalTime = erlang:universaltime_to_localtime(UniversalTime), LocalSecs = datetime_to_gregorian_seconds(LocalTime), UniversalSecs = datetime_to_gregorian_seconds(UniversalTime), LocalSecs - UniversalSecs. @@ -714,7 +722,8 @@ fraction_str(1, _Time) -> ""; fraction_str(Factor, Time) -> Fraction = Time rem Factor, - io_lib:fwrite(".~*..0B", [log10(Factor), abs(Fraction)]). + S = integer_to_list(abs(Fraction)), + [$. | pad(log10(Factor) - length(S), S)]. fraction(second, _) -> 0; @@ -735,5 +744,21 @@ log10(1000) -> 3; log10(1000000) -> 6; log10(1000000000) -> 9. -flat_fwrite(F, S) -> - lists:flatten(io_lib:fwrite(F, S)). +pad(0, S) -> + S; +pad(I, S) -> + [$0 | pad(I - 1, S)]. + +pad2(N) when N < 10 -> + [$0 | integer_to_list(N)]; +pad2(N) -> + integer_to_list(N). + +pad4(N) when N < 10 -> + [$0, $0, $0 | integer_to_list(N)]; +pad4(N) when N < 100 -> + [$0, $0 | integer_to_list(N)]; +pad4(N) when N < 1000 -> + [$0 | integer_to_list(N)]; +pad4(N) -> + integer_to_list(N). diff --git a/lib/stdlib/test/calendar_SUITE.erl b/lib/stdlib/test/calendar_SUITE.erl index c6d9dbca4a..224c0d5625 100644 --- a/lib/stdlib/test/calendar_SUITE.erl +++ b/lib/stdlib/test/calendar_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2018. All Rights Reserved. +%% Copyright Ericsson AB 1997-2019. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. |