diff options
Diffstat (limited to 'lib/ssh/src')
| -rw-r--r-- | lib/ssh/src/ssh.erl | 47 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_sftpd.erl | 31 |
2 files changed, 53 insertions, 25 deletions
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl index 31e343e81b..68d98d3875 100644 --- a/lib/ssh/src/ssh.erl +++ b/lib/ssh/src/ssh.erl @@ -280,9 +280,11 @@ valid_socket_to_use(Socket, Options) -> {error, {unsupported,L4}} end. -is_tcp_socket(Socket) -> {ok,[]} =/= inet:getopts(Socket, [delay_send]). - - +is_tcp_socket(Socket) -> + case inet:getopts(Socket, [delay_send]) of + {ok,[_]} -> true; + _ -> false + end. daemon_shell_opt(Options) -> case proplists:get_value(shell, Options) of @@ -317,6 +319,7 @@ start_daemon(Socket, Options) -> do_start_daemon(Socket, [{role,server}|SshOptions], SocketOptions) catch throw:bad_fd -> {error,bad_fd}; + throw:bad_socket -> {error,bad_socket}; _C:_E -> {error,{cannot_start_daemon,_C,_E}} end; {error,SockError} -> @@ -333,6 +336,7 @@ start_daemon(Host, Port, Options, Inet) -> do_start_daemon(Host, Port, [{role,server}|SshOptions] , [Inet|SocketOptions]) catch throw:bad_fd -> {error,bad_fd}; + throw:bad_socket -> {error,bad_socket}; _C:_E -> {error,{cannot_start_daemon,_C,_E}} end end. @@ -362,8 +366,7 @@ do_start_daemon(Socket, SshOptions, SocketOptions) -> {error, {already_started, _}} -> {error, eaddrinuse}; Result = {ok,_} -> - ssh_acceptor:handle_connection(Callback, Host, Port, Opts, Socket), - Result; + call_ssh_acceptor_handle_connection(Callback, Host, Port, Opts, Socket, Result); Result = {error, _} -> Result catch @@ -376,8 +379,7 @@ do_start_daemon(Socket, SshOptions, SocketOptions) -> {error, {already_started, _}} -> {error, eaddrinuse}; {ok, _} -> - ssh_acceptor:handle_connection(Callback, Host, Port, Opts, Socket), - {ok, Sup}; + call_ssh_acceptor_handle_connection(Callback, Host, Port, Opts, Socket, {ok, Sup}); Other -> Other end @@ -447,6 +449,16 @@ do_start_daemon(Host0, Port0, SshOptions, SocketOptions) -> end end. +call_ssh_acceptor_handle_connection(Callback, Host, Port, Opts, Socket, DefaultResult) -> + try ssh_acceptor:handle_connection(Callback, Host, Port, Opts, Socket) + of + {error,Error} -> {error,Error}; + _ -> DefaultResult + catch + C:R -> {error,{could_not_start_connection,{C,R}}} + end. + + sync_request_control(false) -> ok; sync_request_control({LSock,Callback}) -> @@ -620,11 +632,22 @@ handle_ssh_option({silently_accept_hosts, Value} = Opt) when is_boolean(Value) - handle_ssh_option({silently_accept_hosts, Value} = Opt) when is_function(Value,2) -> Opt; handle_ssh_option({silently_accept_hosts, {DigestAlg,Value}} = Opt) when is_function(Value,2) -> - case lists:member(DigestAlg, [md5, sha, sha224, sha256, sha384, sha512]) of - true -> - Opt; - false -> - throw({error, {eoptions, Opt}}) + Algs = if is_atom(DigestAlg) -> [DigestAlg]; + is_list(DigestAlg) -> DigestAlg; + true -> throw({error, {eoptions, Opt}}) + end, + case [A || A <- Algs, + not lists:member(A, [md5, sha, sha224, sha256, sha384, sha512])] of + [_|_] = UnSup1 -> + throw({error, {{eoptions, Opt}, {not_fingerprint_algos,UnSup1}}}); + [] -> + CryptoHashAlgs = proplists:get_value(hashs, crypto:supports(), []), + case [A || A <- Algs, + not lists:member(A, CryptoHashAlgs)] of + [_|_] = UnSup2 -> + throw({error, {{eoptions, Opt}, {unsupported_algo,UnSup2}}}); + [] -> Opt + end end; handle_ssh_option({user_interaction, Value} = Opt) when is_boolean(Value) -> Opt; diff --git a/lib/ssh/src/ssh_sftpd.erl b/lib/ssh/src/ssh_sftpd.erl index 13c68e4c95..9352046795 100644 --- a/lib/ssh/src/ssh_sftpd.erl +++ b/lib/ssh/src/ssh_sftpd.erl @@ -738,6 +738,10 @@ resolve_symlinks_2([], State, _LinkCnt, AccPath) -> {{ok, AccPath}, State}. +%% The File argument is always in a user visible file system, i.e. +%% is under Root and is relative to CWD or Root, if starts with "/". +%% The result of the function is always an absolute path in a +%% "backend" file system. relate_file_name(File, State) -> relate_file_name(File, State, _Canonicalize=true). @@ -745,19 +749,20 @@ relate_file_name(File, State, Canonicalize) when is_binary(File) -> relate_file_name(unicode:characters_to_list(File), State, Canonicalize); relate_file_name(File, #state{cwd = CWD, root = ""}, Canonicalize) -> relate_filename_to_path(File, CWD, Canonicalize); -relate_file_name(File, #state{root = Root}, Canonicalize) -> - case is_within_root(Root, File) of - true -> - File; - false -> - RelFile = make_relative_filename(File), - NewFile = relate_filename_to_path(RelFile, Root, Canonicalize), - case is_within_root(Root, NewFile) of - true -> - NewFile; - false -> - Root - end +relate_file_name(File, #state{cwd = CWD, root = Root}, Canonicalize) -> + CWD1 = case is_within_root(Root, CWD) of + true -> CWD; + false -> Root + end, + AbsFile = case make_relative_filename(File) of + File -> + relate_filename_to_path(File, CWD1, Canonicalize); + RelFile -> + relate_filename_to_path(RelFile, Root, Canonicalize) + end, + case is_within_root(Root, AbsFile) of + true -> AbsFile; + false -> Root end. is_within_root(Root, File) -> |