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-rw-r--r--lib/ssl/src/ssl_handshake.erl177
1 files changed, 136 insertions, 41 deletions
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index 07535e79b4..6cab8eb7a1 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2015. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -49,7 +49,7 @@
finished/5, next_protocol/1]).
%% Handle handshake messages
--export([certify/8, client_certificate_verify/6, certificate_verify/6, verify_signature/5,
+-export([certify/10, client_certificate_verify/6, certificate_verify/6, verify_signature/5,
master_secret/5, server_key_exchange_hash/2, verify_connection/6,
init_handshake_history/0, update_handshake_history/2, verify_server_key/5
]).
@@ -149,7 +149,7 @@ client_hello_extensions(Host, Version, CipherSuites, SslOpts, ConnectionStates,
certificate(OwnCert, CertDbHandle, CertDbRef, client) ->
Chain =
case ssl_certificate:certificate_chain(OwnCert, CertDbHandle, CertDbRef) of
- {ok, CertChain} ->
+ {ok, _, CertChain} ->
CertChain;
{error, _} ->
%% If no suitable certificate is available, the client
@@ -161,7 +161,7 @@ certificate(OwnCert, CertDbHandle, CertDbRef, client) ->
certificate(OwnCert, CertDbHandle, CertDbRef, server) ->
case ssl_certificate:certificate_chain(OwnCert, CertDbHandle, CertDbRef) of
- {ok, Chain} ->
+ {ok, _, Chain} ->
#certificate{asn1_certificates = Chain};
{error, _} ->
?ALERT_REC(?FATAL, ?INTERNAL_ERROR)
@@ -383,49 +383,24 @@ verify_signature(_Version, Hash, {HashAlgo, ecdsa}, Signature,
%%--------------------------------------------------------------------
-spec certify(#certificate{}, db_handle(), certdb_ref(), integer() | nolimit,
- verify_peer | verify_none, {fun(), term}, fun(),
+ verify_peer | verify_none, {fun(), term}, fun(), term(), term(),
client | server) -> {der_cert(), public_key_info()} | #alert{}.
%%
%% Description: Handles a certificate handshake message
%%--------------------------------------------------------------------
certify(#certificate{asn1_certificates = ASN1Certs}, CertDbHandle, CertDbRef,
- MaxPathLen, _Verify, VerifyFunAndState, PartialChain, Role) ->
+ MaxPathLen, _Verify, ValidationFunAndState0, PartialChain, CRLCheck, CRLDbHandle, Role) ->
[PeerCert | _] = ASN1Certs,
-
- ValidationFunAndState =
- case VerifyFunAndState of
- undefined ->
- {fun(OtpCert, ExtensionOrVerifyResult, SslState) ->
- ssl_certificate:validate_extension(OtpCert,
- ExtensionOrVerifyResult, SslState)
- end, Role};
- {Fun, UserState0} ->
- {fun(OtpCert, {extension, _} = Extension, {SslState, UserState}) ->
- case ssl_certificate:validate_extension(OtpCert,
- Extension,
- SslState) of
- {valid, NewSslState} ->
- {valid, {NewSslState, UserState}};
- {fail, Reason} ->
- apply_user_fun(Fun, OtpCert, Reason, UserState,
- SslState);
- {unknown, _} ->
- apply_user_fun(Fun, OtpCert,
- Extension, UserState, SslState)
- end;
- (OtpCert, VerifyResult, {SslState, UserState}) ->
- apply_user_fun(Fun, OtpCert, VerifyResult, UserState,
- SslState)
- end, {Role, UserState0}}
- end,
+
+ ValidationFunAndState = validation_fun_and_state(ValidationFunAndState0, Role,
+ CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle),
try
- {TrustedErlCert, CertPath} =
+ {TrustedCert, CertPath} =
ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbHandle, CertDbRef, PartialChain),
- case public_key:pkix_path_validation(TrustedErlCert,
- CertPath,
- [{max_path_length,
- MaxPathLen},
+ case public_key:pkix_path_validation(TrustedCert,
+ CertPath,
+ [{max_path_length, MaxPathLen},
{verify_fun, ValidationFunAndState}]) of
{ok, {PublicKeyInfo,_}} ->
{PeerCert, PublicKeyInfo};
@@ -1374,15 +1349,66 @@ sni1(Hostname) ->
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
+validation_fun_and_state({Fun, UserState0}, Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle) ->
+ {fun(OtpCert, {extension, _} = Extension, {SslState, UserState}) ->
+ case ssl_certificate:validate(OtpCert,
+ Extension,
+ SslState) of
+ {valid, NewSslState} ->
+ {valid, {NewSslState, UserState}};
+ {fail, Reason} ->
+ apply_user_fun(Fun, OtpCert, Reason, UserState,
+ SslState);
+ {unknown, _} ->
+ apply_user_fun(Fun, OtpCert,
+ Extension, UserState, SslState)
+ end;
+ (OtpCert, VerifyResult, {SslState, UserState}) ->
+ apply_user_fun(Fun, OtpCert, VerifyResult, UserState,
+ SslState)
+ end, {{Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle}, UserState0}};
+validation_fun_and_state(undefined, Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle) ->
+ {fun(OtpCert, {extension, _} = Extension, SslState) ->
+ ssl_certificate:validate(OtpCert,
+ Extension,
+ SslState);
+ (OtpCert, VerifyResult, SslState) when (VerifyResult == valid) or (VerifyResult == valid_peer) ->
+ case crl_check(OtpCert, CRLCheck, CertDbHandle, CertDbRef, CRLDbHandle, VerifyResult) of
+ valid ->
+ {VerifyResult, SslState};
+ Reason ->
+ {fail, Reason}
+ end;
+ (OtpCert, VerifyResult, SslState) ->
+ ssl_certificate:validate(OtpCert,
+ VerifyResult,
+ SslState)
+ end, {Role, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle}}.
+
+apply_user_fun(Fun, OtpCert, VerifyResult, UserState0,
+ {_, CertDbHandle, CertDbRef, CRLCheck, CRLDbHandle} = SslState) when
+ (VerifyResult == valid) or (VerifyResult == valid_peer) ->
+ case Fun(OtpCert, VerifyResult, UserState0) of
+ {Valid, UserState} when (Valid == valid) or (Valid == valid_peer) ->
+ case crl_check(OtpCert, CRLCheck, CertDbHandle, CertDbRef, CRLDbHandle, VerifyResult) of
+ valid ->
+ {Valid, {SslState, UserState}};
+ Result ->
+ apply_user_fun(Fun, OtpCert, Result, UserState, SslState)
+ end;
+ {fail, _} = Fail ->
+ Fail
+ end;
apply_user_fun(Fun, OtpCert, ExtensionOrError, UserState0, SslState) ->
case Fun(OtpCert, ExtensionOrError, UserState0) of
- {valid, UserState} ->
- {valid, {SslState, UserState}};
+ {Valid, UserState} when (Valid == valid) or (Valid == valid_peer)->
+ {Valid, {SslState, UserState}};
{fail, _} = Fail ->
Fail;
{unknown, UserState} ->
{unknown, {SslState, UserState}}
end.
+
path_validation_alert({bad_cert, cert_expired}) ->
?ALERT_REC(?FATAL, ?CERTIFICATE_EXPIRED);
path_validation_alert({bad_cert, invalid_issuer}) ->
@@ -1393,8 +1419,10 @@ path_validation_alert({bad_cert, name_not_permitted}) ->
?ALERT_REC(?FATAL, ?BAD_CERTIFICATE);
path_validation_alert({bad_cert, unknown_critical_extension}) ->
?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE);
-path_validation_alert({bad_cert, cert_revoked}) ->
+path_validation_alert({bad_cert, {revoked, _}}) ->
?ALERT_REC(?FATAL, ?CERTIFICATE_REVOKED);
+path_validation_alert({bad_cert, revocation_status_undetermined}) ->
+ ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE);
path_validation_alert({bad_cert, selfsigned_peer}) ->
?ALERT_REC(?FATAL, ?BAD_CERTIFICATE);
path_validation_alert({bad_cert, unknown_ca}) ->
@@ -1954,3 +1982,70 @@ handle_psk_identity(_PSKIdentity, LookupFun)
error;
handle_psk_identity(PSKIdentity, {Fun, UserState}) ->
Fun(psk, PSKIdentity, UserState).
+
+crl_check(_, false, _,_,_, _) ->
+ valid;
+crl_check(_, peer, _, _,_, valid) -> %% Do not check CAs with this option.
+ valid;
+crl_check(OtpCert, Check, CertDbHandle, CertDbRef, {Callback, CRLDbHandle}, _) ->
+ Options = [{issuer_fun, {fun(_DP, CRL, Issuer, DBInfo) ->
+ ssl_crl:trusted_cert_and_path(CRL, Issuer, DBInfo)
+ end, {CertDbHandle, CertDbRef}}},
+ {update_crl, fun(DP, CRL) -> Callback:fresh_crl(DP, CRL) end}
+ ],
+ case dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) of
+ no_dps ->
+ case dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer) of
+ [] ->
+ valid; %% No relevant CRL existed
+ Dps ->
+ crl_check_same_issuer(OtpCert, Check, Dps, Options)
+ end;
+ Dps -> %% This DP list may be empty if relevant CRLs existed
+ %% but could not be retrived, will result in {bad_cert, revocation_status_undetermined}
+ case public_key:pkix_crls_validate(OtpCert, Dps, Options) of
+ {bad_cert, revocation_status_undetermined} ->
+ crl_check_same_issuer(OtpCert, Check, dps_and_crls(OtpCert, Callback,
+ CRLDbHandle, same_issuer), Options);
+ Other ->
+ Other
+ end
+ end.
+
+crl_check_same_issuer(OtpCert, best_effort, Dps, Options) ->
+ case public_key:pkix_crls_validate(OtpCert, Dps, Options) of
+ {bad_cert, revocation_status_undetermined} ->
+ valid;
+ Other ->
+ Other
+ end;
+crl_check_same_issuer(OtpCert, _, Dps, Options) ->
+ public_key:pkix_crls_validate(OtpCert, Dps, Options).
+
+dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) ->
+ case public_key:pkix_dist_points(OtpCert) of
+ [] ->
+ no_dps;
+ DistPoints ->
+ distpoints_lookup(DistPoints, Callback, CRLDbHandle)
+ end;
+
+dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer) ->
+ DP = #'DistributionPoint'{distributionPoint = {fullName, GenNames}} =
+ public_key:pkix_dist_point(OtpCert),
+ CRLs = lists:flatmap(fun({directoryName, Issuer}) ->
+ Callback:select(Issuer, CRLDbHandle);
+ (_) ->
+ []
+ end, GenNames),
+ [{DP, {CRL, public_key:der_decode('CertificateList', CRL)}} || CRL <- CRLs].
+
+distpoints_lookup([], _, _) ->
+ [];
+distpoints_lookup([DistPoint | Rest], Callback, CRLDbHandle) ->
+ case Callback:lookup(DistPoint, CRLDbHandle) of
+ not_available ->
+ distpoints_lookup(Rest, Callback, CRLDbHandle);
+ CRLs ->
+ [{DistPoint, {CRL, public_key:der_decode('CertificateList', CRL)}} || CRL <- CRLs]
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 18:32:35 +0000