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-rw-r--r--lib/ssh/src/ssh.hrl2
-rw-r--r--lib/ssh/src/ssh_sftpd.erl2
-rw-r--r--lib/ssh/src/ssh_transport.erl83
-rw-r--r--lib/ssh/test/ssh_basic_SUITE.erl2
-rw-r--r--lib/ssh/test/ssh_bench_SUITE.erl10
-rw-r--r--lib/ssh/test/ssh_chan_behaviours_SUITE.erl4
-rw-r--r--lib/ssh/test/ssh_chan_behaviours_client.erl2
-rw-r--r--lib/ssh/test/ssh_chan_behaviours_server.erl2
-rw-r--r--lib/ssh/test/ssh_compat_SUITE.erl17
-rw-r--r--lib/ssh/test/ssh_options_SUITE.erl2
-rw-r--r--lib/ssh/test/ssh_test_lib.erl4
-rw-r--r--lib/ssh/test/ssh_trpt_test_lib.erl69
12 files changed, 70 insertions, 129 deletions
diff --git a/lib/ssh/src/ssh.hrl b/lib/ssh/src/ssh.hrl
index 923e9309f4..04453e6ef0 100644
--- a/lib/ssh/src/ssh.hrl
+++ b/lib/ssh/src/ssh.hrl
@@ -396,11 +396,13 @@
recv_mac_size = 0,
encrypt = none, %% encrypt algorithm
+ encrypt_cipher, %% cipher. could be different from the algorithm
encrypt_keys, %% encrypt keys
encrypt_block_size = 8,
encrypt_ctx,
decrypt = none, %% decrypt algorithm
+ decrypt_cipher, %% cipher. could be different from the algorithm
decrypt_keys, %% decrypt keys
decrypt_block_size = 8,
decrypt_ctx, %% Decryption context
diff --git a/lib/ssh/src/ssh_sftpd.erl b/lib/ssh/src/ssh_sftpd.erl
index aa9ba0f9bb..5ec12e2d04 100644
--- a/lib/ssh/src/ssh_sftpd.erl
+++ b/lib/ssh/src/ssh_sftpd.erl
@@ -508,7 +508,7 @@ close_our_file({_,Fd}, FileMod, FS0) ->
FS1.
%%% stat: do the stat
-stat(Vsn, ReqId, Data, State, F) ->
+stat(_Vsn, ReqId, Data, State, F) ->
<<?UINT32(BLen), BPath:BLen/binary, _/binary>> = Data,
stat(ReqId, unicode:characters_to_list(BPath), State, F).
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 2299346a30..eaab13433a 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -1328,13 +1328,15 @@ verify(PlainText, HashAlg, Sig, Key, _) ->
%%% Start of a more parameterized crypto handling.
cipher('AEAD_AES_128_GCM') ->
- #cipher{key_bytes = 16,
+ #cipher{impl = aes_128_gcm,
+ key_bytes = 16,
iv_bytes = 12,
block_bytes = 16,
pkt_type = aead};
cipher('AEAD_AES_256_GCM') ->
- #cipher{key_bytes = 32,
+ #cipher{impl = aes_256_gcm,
+ key_bytes = 32,
iv_bytes = 12,
block_bytes = 16,
pkt_type = aead};
@@ -1346,7 +1348,7 @@ cipher('3des-cbc') ->
block_bytes = 8};
cipher('aes128-cbc') ->
- #cipher{impl = aes_cbc,
+ #cipher{impl = aes_128_cbc,
key_bytes = 16,
iv_bytes = 16,
block_bytes = 16};
@@ -1370,7 +1372,8 @@ cipher('aes256-ctr') ->
block_bytes = 16};
cipher('[email protected]') -> % FIXME: Verify!!
- #cipher{key_bytes = 32,
+ #cipher{impl = chacha20_poly1305,
+ key_bytes = 32,
iv_bytes = 12,
block_bytes = 8,
pkt_type = aead};
@@ -1407,12 +1410,14 @@ encrypt_init(#ssh{encrypt = '[email protected]', role = Role} = Ssh)
encrypt_init(#ssh{encrypt = SshCipher, role = Role} = Ssh) when SshCipher == 'AEAD_AES_128_GCM';
SshCipher == 'AEAD_AES_256_GCM' ->
{IvMagic, KeyMagic} = encrypt_magic(Role),
- #cipher{key_bytes = KeyBytes,
+ #cipher{impl = CryptoCipher,
+ key_bytes = KeyBytes,
iv_bytes = IvBytes,
block_bytes = BlockBytes} = cipher(SshCipher),
IV = hash(Ssh, IvMagic, 8*IvBytes),
K = hash(Ssh, KeyMagic, 8*KeyBytes),
- {ok, Ssh#ssh{encrypt_keys = K,
+ {ok, Ssh#ssh{encrypt_cipher = CryptoCipher,
+ encrypt_keys = K,
encrypt_block_size = BlockBytes,
encrypt_ctx = IV}};
@@ -1425,11 +1430,12 @@ encrypt_init(#ssh{encrypt = SshCipher, role = Role} = Ssh) ->
IV = hash(Ssh, IvMagic, 8*IvBytes),
K = hash(Ssh, KeyMagic, 8*KeyBytes),
Ctx0 = crypto:crypto_init(CryptoCipher, K, IV, true),
- {ok, Ssh#ssh{encrypt_block_size = BlockBytes,
+ {ok, Ssh#ssh{encrypt_cipher = CryptoCipher,
+ encrypt_block_size = BlockBytes,
encrypt_ctx = Ctx0}}.
encrypt_final(Ssh) ->
- {ok, Ssh#ssh{encrypt = none,
+ {ok, Ssh#ssh{encrypt = none,
encrypt_keys = undefined,
encrypt_block_size = 8,
encrypt_ctx = undefined
@@ -1457,18 +1463,19 @@ encrypt(#ssh{encrypt = '[email protected]',
{Ssh, {EncBytes,Ctag}};
encrypt(#ssh{encrypt = SshCipher,
+ encrypt_cipher = CryptoCipher,
encrypt_keys = K,
encrypt_ctx = IV0} = Ssh,
<<LenData:4/binary, PayloadData/binary>>) when SshCipher == 'AEAD_AES_128_GCM' ;
SshCipher == 'AEAD_AES_256_GCM' ->
- {Ctext,Ctag} = crypto:block_encrypt(aes_gcm, K, IV0, {LenData,PayloadData}),
+ {Ctext,Ctag} = crypto:crypto_one_time_aead(CryptoCipher, K, IV0, PayloadData, LenData, true),
IV = next_gcm_iv(IV0),
{Ssh#ssh{encrypt_ctx = IV}, {<<LenData/binary,Ctext/binary>>,Ctag}};
encrypt(#ssh{encrypt_ctx = Ctx0} = Ssh, Data) ->
Enc = crypto:crypto_update(Ctx0, Data),
{Ssh, Enc}.
-
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Decryption
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1485,12 +1492,14 @@ decrypt_init(#ssh{decrypt = '[email protected]', role = Role} = Ssh)
decrypt_init(#ssh{decrypt = SshCipher, role = Role} = Ssh) when SshCipher == 'AEAD_AES_128_GCM';
SshCipher == 'AEAD_AES_256_GCM' ->
{IvMagic, KeyMagic} = decrypt_magic(Role),
- #cipher{key_bytes = KeyBytes,
+ #cipher{impl = CryptoCipher,
+ key_bytes = KeyBytes,
iv_bytes = IvBytes,
block_bytes = BlockBytes} = cipher(SshCipher),
IV = hash(Ssh, IvMagic, 8*IvBytes),
K = hash(Ssh, KeyMagic, 8*KeyBytes),
- {ok, Ssh#ssh{decrypt_keys = K,
+ {ok, Ssh#ssh{decrypt_cipher = CryptoCipher,
+ decrypt_keys = K,
decrypt_block_size = BlockBytes,
decrypt_ctx = IV}};
@@ -1503,9 +1512,11 @@ decrypt_init(#ssh{decrypt = SshCipher, role = Role} = Ssh) ->
IV = hash(Ssh, IvMagic, 8*IvBytes),
K = hash(Ssh, KeyMagic, 8*KeyBytes),
Ctx0 = crypto:crypto_init(CryptoCipher, K, IV, false),
- {ok, Ssh#ssh{decrypt_block_size = BlockBytes,
+ {ok, Ssh#ssh{decrypt_cipher = CryptoCipher,
+ decrypt_block_size = BlockBytes,
decrypt_ctx = Ctx0}}.
+
decrypt_final(Ssh) ->
{ok, Ssh#ssh {decrypt = none,
decrypt_keys = undefined,
@@ -1517,35 +1528,37 @@ decrypt(Ssh, <<>>) ->
{Ssh, <<>>};
decrypt(#ssh{decrypt = '[email protected]',
- decrypt_keys = {K1,_K2},
- recv_sequence = Seq} = Ssh, {length,EncryptedLen}) ->
- PacketLenBin = crypto:crypto_one_time(chacha20, K1, <<0:8/unit:8, Seq:8/unit:8>>, EncryptedLen, false),
- {Ssh, PacketLenBin};
-
-decrypt(#ssh{decrypt = '[email protected]',
- decrypt_keys = {_K1,K2},
- recv_sequence = Seq} = Ssh, {AAD,Ctext,Ctag}) ->
- %% The length is already decoded and used to divide the input
- %% Check the mac (important that it is timing-safe):
- PolyKey = crypto:crypto_one_time(chacha20, K2, <<0:8/unit:8,Seq:8/unit:8>>, <<0:32/unit:8>>, false),
- case equal_const_time(Ctag, crypto:poly1305(PolyKey, <<AAD/binary,Ctext/binary>>)) of
- true ->
- %% MAC is ok, decode
- IV2 = <<1:8/little-unit:8, Seq:8/unit:8>>,
- PlainText = crypto:crypto_one_time(chacha20, K2, IV2, Ctext, false),
- {Ssh, PlainText};
- false ->
- {Ssh,error}
+ decrypt_keys = {K1,K2},
+ recv_sequence = Seq} = Ssh, Data) ->
+ case Data of
+ {length,EncryptedLen} ->
+ %% The length is decrypted separately in a first step
+ PacketLenBin = crypto:crypto_one_time(chacha20, K1, <<0:8/unit:8, Seq:8/unit:8>>, EncryptedLen, false),
+ {Ssh, PacketLenBin};
+ {AAD,Ctext,Ctag} ->
+ %% The length is already decrypted and used to divide the input
+ %% Check the mac (important that it is timing-safe):
+ PolyKey = crypto:crypto_one_time(chacha20, K2, <<0:8/unit:8,Seq:8/unit:8>>, <<0:32/unit:8>>, false),
+ case equal_const_time(Ctag, crypto:poly1305(PolyKey, <<AAD/binary,Ctext/binary>>)) of
+ true ->
+ %% MAC is ok, decode
+ IV2 = <<1:8/little-unit:8, Seq:8/unit:8>>,
+ PlainText = crypto:crypto_one_time(chacha20, K2, IV2, Ctext, false),
+ {Ssh, PlainText};
+ false ->
+ {Ssh,error}
+ end
end;
decrypt(#ssh{decrypt = none} = Ssh, Data) ->
{Ssh, Data};
decrypt(#ssh{decrypt = SshCipher,
+ decrypt_cipher = CryptoCipher,
decrypt_keys = K,
- decrypt_ctx = IV0} = Ssh, Data = {_AAD,_Ctext,_Ctag}) when SshCipher == 'AEAD_AES_128_GCM' ;
- SshCipher == 'AEAD_AES_256_GCM' ->
- Dec = crypto:block_decrypt(aes_gcm, K, IV0, Data), % Dec = PlainText | error
+ decrypt_ctx = IV0} = Ssh, {AAD,Ctext,Ctag}) when SshCipher == 'AEAD_AES_128_GCM' ;
+ SshCipher == 'AEAD_AES_256_GCM' ->
+ Dec = crypto:crypto_one_time_aead(CryptoCipher, K, IV0, Ctext, AAD, Ctag, false),
IV = next_gcm_iv(IV0),
{Ssh#ssh{decrypt_ctx = IV}, Dec};
diff --git a/lib/ssh/test/ssh_basic_SUITE.erl b/lib/ssh/test/ssh_basic_SUITE.erl
index 5de6d52092..9b987dea5a 100644
--- a/lib/ssh/test/ssh_basic_SUITE.erl
+++ b/lib/ssh/test/ssh_basic_SUITE.erl
@@ -1399,7 +1399,7 @@ rekey_chk(Config, RLdaemon, RLclient) ->
Kex1 = ssh_test_lib:get_kex_init(ConnectionRef),
%% Make both sides send something:
- {ok, SftpPid} = ssh_sftp:start_channel(ConnectionRef),
+ {ok, _SftpPid} = ssh_sftp:start_channel(ConnectionRef),
%% Check rekeying
timer:sleep(?REKEY_DATA_TMO),
diff --git a/lib/ssh/test/ssh_bench_SUITE.erl b/lib/ssh/test/ssh_bench_SUITE.erl
index 2ac4e5636a..880c519a5e 100644
--- a/lib/ssh/test/ssh_bench_SUITE.erl
+++ b/lib/ssh/test/ssh_bench_SUITE.erl
@@ -178,7 +178,7 @@ gen_data(DataSz) ->
connect_measure(Port, Cipher, Mac, Data, Options) ->
- AES_GCM = {cipher,
+ _AES_GCM = {cipher,
[]},
%% ['[email protected]',
%% '[email protected]']},
@@ -187,22 +187,22 @@ connect_measure(Port, Cipher, Mac, Data, Options) ->
{none,none} ->
[{modify_algorithms,[{prepend, [{cipher,[Cipher]},
{mac,[Mac]}]}
-%%% ,{rm,[AES_GCM]}
+%%% ,{rm,[_AES_GCM]}
]}];
{none,_} ->
[{modify_algorithms,[{prepend, [{cipher,[Cipher]}]}
-%%% ,{rm,[AES_GCM]}
+%%% ,{rm,[_AES_GCM]}
]},
{preferred_algorithms, [{mac,[Mac]}]}];
{_,none} ->
[{modify_algorithms,[{prepend, [{mac,[Mac]}]}
-%%% ,{rm,[AES_GCM]}
+%%% ,{rm,[_AES_GCM]}
]},
{preferred_algorithms, [{cipher,[Cipher]}]}];
_ ->
[{preferred_algorithms, [{cipher,[Cipher]},
{mac,[Mac]}]}
-%%% ,{modify_algorithms, [{rm,[AES_GCM]}]}
+%%% ,{modify_algorithms, [{rm,[_AES_GCM]}]}
]
end,
Times =
diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE.erl b/lib/ssh/test/ssh_chan_behaviours_SUITE.erl
index 16ed152bcd..103d7253fd 100644
--- a/lib/ssh/test/ssh_chan_behaviours_SUITE.erl
+++ b/lib/ssh/test/ssh_chan_behaviours_SUITE.erl
@@ -128,8 +128,8 @@ subsystem_client(Config) ->
C = proplists:get_value(connref, Config),
{ok,ChRef} = ssh_chan_behaviours_client:start_link(C),
- IDclt = ?EXPECT({{C,Ch1clt}, {ssh_channel_up,Ch1clt,C}}, {C,Ch1clt}),
- IDsrv = ?EXPECT({{_Csrv,Ch1srv}, {ssh_channel_up,Ch1srv,_Csrv}}, {_Csrv,Ch1srv}),
+ IDclt = ?EXPECT({{C,_Ch1clt}, {ssh_channel_up,_Ch1clt,C}}, {C,_Ch1clt}),
+ IDsrv = ?EXPECT({{_Csrv,_Ch1srv}, {ssh_channel_up,_Ch1srv,_Csrv}}, {_Csrv,_Ch1srv}),
ok = ssh_chan_behaviours_client:stop(ChRef),
?EXPECT({IDclt, {terminate,normal}}, []), % From the proper channel handler
diff --git a/lib/ssh/test/ssh_chan_behaviours_client.erl b/lib/ssh/test/ssh_chan_behaviours_client.erl
index 15f17733d6..8dd18973ad 100644
--- a/lib/ssh/test/ssh_chan_behaviours_client.erl
+++ b/lib/ssh/test/ssh_chan_behaviours_client.erl
@@ -94,7 +94,7 @@ handle_ssh_msg({ssh_cm, C, {eof, Ch}}=M, #state{ch=Ch,cm=C} = State) ->
?DBG(State, "eof",[]),
{ok, State};
-handle_ssh_msg({ssh_cm, C, {signal, _Ch, _SigNameStr}=Sig} = M, #state{ch=Ch,cm=C} = State) ->
+handle_ssh_msg({ssh_cm, C, {signal, Ch, _SigNameStr}=Sig} = M, #state{ch=Ch,cm=C} = State) ->
%% Ignore signals according to RFC 4254 section 6.9.
tell_parent(M, State),
?DBG(State, "~p",[Sig]),
diff --git a/lib/ssh/test/ssh_chan_behaviours_server.erl b/lib/ssh/test/ssh_chan_behaviours_server.erl
index 1408675a6e..1d504b1bc6 100644
--- a/lib/ssh/test/ssh_chan_behaviours_server.erl
+++ b/lib/ssh/test/ssh_chan_behaviours_server.erl
@@ -65,7 +65,7 @@ handle_ssh_msg({ssh_cm, C, {eof, Ch}}=M, #state{ch=Ch,cm=C} = State) ->
?DBG(State, "eof",[]),
{ok, State};
-handle_ssh_msg({ssh_cm, C, {signal, _Ch, _SigNameStr}=Sig} = M, #state{ch=Ch,cm=C} = State) ->
+handle_ssh_msg({ssh_cm, C, {signal, Ch, _SigNameStr}=Sig} = M, #state{ch=Ch,cm=C} = State) ->
%% Ignore signals according to RFC 4254 section 6.9.
tell_parent(M, State),
?DBG(State, "~p",[Sig]),
diff --git a/lib/ssh/test/ssh_compat_SUITE.erl b/lib/ssh/test/ssh_compat_SUITE.erl
index 8e82527c6e..06ed9082cf 100644
--- a/lib/ssh/test/ssh_compat_SUITE.erl
+++ b/lib/ssh/test/ssh_compat_SUITE.erl
@@ -150,8 +150,7 @@ init_per_group(G, Config0) ->
stop_docker(ID),
{fail, "Can't contact docker sshd"}
catch
- Class:Exc ->
- ST = erlang:get_stacktrace(),
+ Class:Exc:ST ->
ct:log("common_algs: ~p:~p~n~p",[Class,Exc,ST]),
stop_docker(ID),
{fail, "Failed during setup"}
@@ -160,8 +159,7 @@ init_per_group(G, Config0) ->
cant_start_docker ->
{skip, "Can't start docker"};
- C:E ->
- ST = erlang:get_stacktrace(),
+ C:E:ST ->
ct:log("No ~p~n~p:~p~n~p",[G,C,E,ST]),
{skip, "Can't start docker"}
end;
@@ -1026,8 +1024,7 @@ receive_hello(S) ->
Result ->
Result
catch
- Class:Error ->
- ST = erlang:get_stacktrace(),
+ Class:Error:ST ->
{error, {Class,Error,ST}}
end.
@@ -1104,8 +1101,7 @@ sftp_tests_erl_server(Config, ServerIP, ServerPort, ServerRootDir, UserDir) ->
call_sftp_in_docker(Config, ServerIP, ServerPort, Cmnds, UserDir),
check_local_directory(ServerRootDir)
catch
- Class:Error ->
- ST = erlang:get_stacktrace(),
+ Class:Error:ST ->
{error, {Class,Error,ST}}
end.
@@ -1133,7 +1129,7 @@ check_local_directory(ServerRootDir) ->
check_local_directory(ServerRootDir, SleepTime, N) ->
case do_check_local_directory(ServerRootDir) of
- {error,Error} when N>0 ->
+ {error,_Error} when N>0 ->
%% Could be that the erlang side is faster and the docker's operations
%% are not yet finalized.
%% Sleep for a while and retry a few times:
@@ -1347,8 +1343,7 @@ one_test_erl_client(SFTP, Id, C) when SFTP==sftp ; SFTP==sftp_async ->
catch ssh_sftp:stop_channel(Ch),
R
catch
- Class:Error ->
- ST = erlang:get_stacktrace(),
+ Class:Error:ST ->
{error, {SFTP,Id,Class,Error,ST}}
end.
diff --git a/lib/ssh/test/ssh_options_SUITE.erl b/lib/ssh/test/ssh_options_SUITE.erl
index 60d0da2a39..bf90f74324 100644
--- a/lib/ssh/test/ssh_options_SUITE.erl
+++ b/lib/ssh/test/ssh_options_SUITE.erl
@@ -214,7 +214,7 @@ init_per_testcase(_TestCase, Config) ->
file:make_dir(UserDir),
[{user_dir,UserDir}|Config].
-end_per_testcase(_TestCase, Config) ->
+end_per_testcase(_TestCase, _Config) ->
ssh:stop(),
ok.
diff --git a/lib/ssh/test/ssh_test_lib.erl b/lib/ssh/test/ssh_test_lib.erl
index a1a7eebcde..1129303414 100644
--- a/lib/ssh/test/ssh_test_lib.erl
+++ b/lib/ssh/test/ssh_test_lib.erl
@@ -409,7 +409,7 @@ ct:log("DataDir ~p:~n ~p~n~nSystDir ~p:~n ~p~n~nUserDir ~p:~n ~p",[DataDir, file
setup_ecdsa_auth_keys(Size, DataDir, UserDir).
setup_eddsa(Alg, DataDir, UserDir) ->
- {IdPriv, IdPub, HostPriv, HostPub} =
+ {IdPriv, _IdPub, HostPriv, HostPub} =
case Alg of
ed25519 -> {"id_ed25519", "id_ed25519.pub", "ssh_host_ed25519_key", "ssh_host_ed25519_key.pub"};
ed448 -> {"id_ed448", "id_ed448.pub", "ssh_host_ed448_key", "ssh_host_ed448_key.pub"}
@@ -970,7 +970,7 @@ expected_state(_) -> false.
%%%----------------------------------------------------------------
%%% Return a string with N random characters
%%%
-random_chars(N) -> [crypto:rand_uniform($a,$z) || _<-lists:duplicate(N,x)].
+random_chars(N) -> [($a-1)+rand:uniform($z-$a) || _<-lists:duplicate(N,x)].
create_random_dir(Config) ->
diff --git a/lib/ssh/test/ssh_trpt_test_lib.erl b/lib/ssh/test/ssh_trpt_test_lib.erl
index f2c9892f95..3f4df2c986 100644
--- a/lib/ssh/test/ssh_trpt_test_lib.erl
+++ b/lib/ssh/test/ssh_trpt_test_lib.erl
@@ -570,75 +570,6 @@ receive_binary_msg(S0=#s{}) ->
-old_receive_binary_msg(S0=#s{ssh=C0=#ssh{decrypt_block_size = BlockSize,
- recv_mac_size = MacSize
- }
- }) ->
- case size(S0#s.encrypted_data_buffer) >= max(8,BlockSize) of
- false ->
- %% Need more bytes to decode the packet_length field
- Remaining = max(8,BlockSize) - size(S0#s.encrypted_data_buffer),
- receive_binary_msg( receive_wait(Remaining, S0) );
- true ->
- %% Has enough bytes to decode the packet_length field
- {_, <<?UINT32(PacketLen), _/binary>>, _} =
- ssh_transport:decrypt_blocks(S0#s.encrypted_data_buffer, BlockSize, C0), % FIXME: BlockSize should be at least 4
-
- %% FIXME: Check that ((4+PacketLen) rem BlockSize) == 0 ?
-
- S1 = if
- PacketLen > ?SSH_MAX_PACKET_SIZE ->
- fail({too_large_message,PacketLen},S0); % FIXME: disconnect
-
- ((4+PacketLen) rem BlockSize) =/= 0 ->
- fail(bad_packet_length_modulo, S0); % FIXME: disconnect
-
- size(S0#s.encrypted_data_buffer) >= (4 + PacketLen + MacSize) ->
- %% has the whole packet
- S0;
-
- true ->
- %% need more bytes to get have the whole packet
- Remaining = (4 + PacketLen + MacSize) - size(S0#s.encrypted_data_buffer),
- receive_wait(Remaining, S0)
- end,
-
- %% Decrypt all, including the packet_length part (re-use the initial #ssh{})
- {C1, SshPacket = <<?UINT32(_),?BYTE(PadLen),Tail/binary>>, EncRest} =
- ssh_transport:decrypt_blocks(S1#s.encrypted_data_buffer, PacketLen+4, C0),
-
- PayloadLen = PacketLen - 1 - PadLen,
- <<CompressedPayload:PayloadLen/binary, _Padding:PadLen/binary>> = Tail,
-
- {C2, Payload} = ssh_transport:decompress(C1, CompressedPayload),
-
- <<Mac:MacSize/binary, Rest/binary>> = EncRest,
-
- case {ssh_transport:is_valid_mac(Mac, SshPacket, C2),
- catch ssh_message:decode(set_prefix_if_trouble(Payload,S1))}
- of
- {false, _} -> fail(bad_mac,S1);
- {_, {'EXIT',_}} -> fail(decode_failed,S1);
-
- {true, Msg} ->
- C3 = case Msg of
- #ssh_msg_kexinit{} ->
- ssh_transport:key_init(opposite_role(C2), C2, Payload);
- _ ->
- C2
- end,
- S2 = opt(print_messages, S1,
- fun(X) when X==true;X==detail -> {"Recv~n~s~n",[format_msg(Msg)]} end),
- S3 = opt(print_messages, S2,
- fun(detail) -> {"decrypted bytes ~p~n",[SshPacket]} end),
- S3#s{ssh = inc_recv_seq_num(C3),
- encrypted_data_buffer = Rest,
- return_value = Msg
- }
- end
- end.
-
-
set_prefix_if_trouble(Msg = <<?BYTE(Op),_/binary>>, #s{alg=#alg{kex=Kex}})
when Op == 30;
Op == 31
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-01 08:15:12 +0000