+++ /dev/null
-/*\r
- * winproxy.c: Windows implementation of platform_new_connection(),\r
- * supporting an OpenSSH-like proxy command via the winhandl.c\r
- * mechanism.\r
- */\r
-\r
-#include <stdio.h>\r
-#include <assert.h>\r
-\r
-#define DEFINE_PLUG_METHOD_MACROS\r
-#include "tree234.h"\r
-#include "putty.h"\r
-#include "network.h"\r
-#include "proxy.h"\r
-\r
-typedef struct Socket_localproxy_tag *Local_Proxy_Socket;\r
-\r
-struct Socket_localproxy_tag {\r
- const struct socket_function_table *fn;\r
- /* the above variable absolutely *must* be the first in this structure */\r
-\r
- HANDLE to_cmd_H, from_cmd_H;\r
- struct handle *to_cmd_h, *from_cmd_h;\r
-\r
- char *error;\r
-\r
- Plug plug;\r
-\r
- void *privptr;\r
-};\r
-\r
-int localproxy_gotdata(struct handle *h, void *data, int len)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) handle_get_privdata(h);\r
-\r
- if (len < 0) {\r
- return plug_closing(ps->plug, "Read error from local proxy command",\r
- 0, 0);\r
- } else if (len == 0) {\r
- return plug_closing(ps->plug, NULL, 0, 0);\r
- } else {\r
- return plug_receive(ps->plug, 0, data, len);\r
- }\r
-}\r
-\r
-void localproxy_sentdata(struct handle *h, int new_backlog)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) handle_get_privdata(h);\r
- \r
- plug_sent(ps->plug, new_backlog);\r
-}\r
-\r
-static Plug sk_localproxy_plug (Socket s, Plug p)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
- Plug ret = ps->plug;\r
- if (p)\r
- ps->plug = p;\r
- return ret;\r
-}\r
-\r
-static void sk_localproxy_close (Socket s)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
-\r
- handle_free(ps->to_cmd_h);\r
- handle_free(ps->from_cmd_h);\r
- CloseHandle(ps->to_cmd_H);\r
- CloseHandle(ps->from_cmd_H);\r
-\r
- sfree(ps);\r
-}\r
-\r
-static int sk_localproxy_write (Socket s, const char *data, int len)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
-\r
- return handle_write(ps->to_cmd_h, data, len);\r
-}\r
-\r
-static int sk_localproxy_write_oob(Socket s, const char *data, int len)\r
-{\r
- /*\r
- * oob data is treated as inband; nasty, but nothing really\r
- * better we can do\r
- */\r
- return sk_localproxy_write(s, data, len);\r
-}\r
-\r
-static void sk_localproxy_flush(Socket s)\r
-{\r
- /* Local_Proxy_Socket ps = (Local_Proxy_Socket) s; */\r
- /* do nothing */\r
-}\r
-\r
-static void sk_localproxy_set_private_ptr(Socket s, void *ptr)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
- ps->privptr = ptr;\r
-}\r
-\r
-static void *sk_localproxy_get_private_ptr(Socket s)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
- return ps->privptr;\r
-}\r
-\r
-static void sk_localproxy_set_frozen(Socket s, int is_frozen)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
-\r
- /*\r
- * FIXME\r
- */\r
-}\r
-\r
-static const char *sk_localproxy_socket_error(Socket s)\r
-{\r
- Local_Proxy_Socket ps = (Local_Proxy_Socket) s;\r
- return ps->error;\r
-}\r
-\r
-Socket platform_new_connection(SockAddr addr, char *hostname,\r
- int port, int privport,\r
- int oobinline, int nodelay, int keepalive,\r
- Plug plug, const Config *cfg)\r
-{\r
- char *cmd;\r
-\r
- static const struct socket_function_table socket_fn_table = {\r
- sk_localproxy_plug,\r
- sk_localproxy_close,\r
- sk_localproxy_write,\r
- sk_localproxy_write_oob,\r
- sk_localproxy_flush,\r
- sk_localproxy_set_private_ptr,\r
- sk_localproxy_get_private_ptr,\r
- sk_localproxy_set_frozen,\r
- sk_localproxy_socket_error\r
- };\r
-\r
- Local_Proxy_Socket ret;\r
- HANDLE us_to_cmd, us_from_cmd, cmd_to_us, cmd_from_us;\r
- SECURITY_ATTRIBUTES sa;\r
- STARTUPINFO si;\r
- PROCESS_INFORMATION pi;\r
-\r
- if (cfg->proxy_type != PROXY_CMD)\r
- return NULL;\r
-\r
- cmd = format_telnet_command(addr, port, cfg);\r
-\r
- {\r
- char *msg = dupprintf("Starting local proxy command: %s", cmd);\r
- /* We're allowed to pass NULL here, because we're part of the Windows\r
- * front end so we know logevent doesn't expect any data. */\r
- logevent(NULL, msg);\r
- sfree(msg);\r
- }\r
-\r
- ret = snew(struct Socket_localproxy_tag);\r
- ret->fn = &socket_fn_table;\r
- ret->plug = plug;\r
- ret->error = NULL;\r
-\r
- /*\r
- * Create the pipes to the proxy command, and spawn the proxy\r
- * command process.\r
- */\r
- sa.nLength = sizeof(sa);\r
- sa.lpSecurityDescriptor = NULL; /* default */\r
- sa.bInheritHandle = TRUE;\r
- if (!CreatePipe(&us_from_cmd, &cmd_to_us, &sa, 0)) {\r
- ret->error = dupprintf("Unable to create pipes for proxy command");\r
- return (Socket)ret;\r
- }\r
-\r
- if (!CreatePipe(&cmd_from_us, &us_to_cmd, &sa, 0)) {\r
- CloseHandle(us_from_cmd);\r
- CloseHandle(cmd_to_us);\r
- ret->error = dupprintf("Unable to create pipes for proxy command");\r
- return (Socket)ret;\r
- }\r
-\r
- SetHandleInformation(us_to_cmd, HANDLE_FLAG_INHERIT, 0);\r
- SetHandleInformation(us_from_cmd, HANDLE_FLAG_INHERIT, 0);\r
-\r
- si.cb = sizeof(si);\r
- si.lpReserved = NULL;\r
- si.lpDesktop = NULL;\r
- si.lpTitle = NULL;\r
- si.dwFlags = STARTF_USESTDHANDLES;\r
- si.cbReserved2 = 0;\r
- si.lpReserved2 = NULL;\r
- si.hStdInput = cmd_from_us;\r
- si.hStdOutput = cmd_to_us;\r
- si.hStdError = NULL;\r
- CreateProcess(NULL, cmd, NULL, NULL, TRUE,\r
- CREATE_NO_WINDOW | NORMAL_PRIORITY_CLASS,\r
- NULL, NULL, &si, &pi);\r
-\r
- sfree(cmd);\r
-\r
- CloseHandle(cmd_from_us);\r
- CloseHandle(cmd_to_us);\r
-\r
- ret->to_cmd_H = us_to_cmd;\r
- ret->from_cmd_H = us_from_cmd;\r
-\r
- ret->from_cmd_h = handle_input_new(ret->from_cmd_H, localproxy_gotdata,\r
- ret, 0);\r
- ret->to_cmd_h = handle_output_new(ret->to_cmd_H, localproxy_sentdata,\r
- ret, 0);\r
-\r
- /* We are responsible for this and don't need it any more */\r
- sk_addr_free(addr);\r
-\r
- return (Socket) ret;\r
-}\r
OSDN Git Service
