mirror of
https://github.com/PowerShell/Win32-OpenSSH.git
synced 2025-07-24 22:45:17 +02:00
sftp-server.exe first code drop that works
sftp-server.exe code modified to work in Windows as NoMachine never finished it to work. I/O handling to work as a subsystem and openssh7.1p1 sshbuf_new() buffer system code had to be used. sshd_config file need location of sftp subsystem to be specified.
This commit is contained in:
quamrulmina
parent
df2ea3875e
commit
5b06ebbbb5
@ -93,6 +93,7 @@ static char pw_gecos[UNLEN + 1] = {'\0'};
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static char pw_username[UNLEN + 1] = {'\0'};
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static char pw_passwd[UNLEN + 1] = {'\0'};
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static wchar_t pw_homedir[MAX_PATH] = {L'\0'};
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static char pw_homedir_ascii[MAX_PATH] = {'\0'};
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static char pw_password[MAX_PATH] = {'\0'};
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static char pw_shellpath[MAX_PATH] = {'\0'};
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@ -226,7 +227,7 @@ struct passwd *getpwuid(uid_t uid)
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pw.pw_passwd = pw_password;
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pw.pw_gecos = pw_gecos;
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pw.pw_shell = pw_shellpath;
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pw.pw_dir = pw_homedir;
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pw.pw_dir = pw_homedir_ascii;
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/*
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* Get the current user's name.
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@ -275,19 +276,31 @@ struct passwd *getpwuid(uid_t uid)
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debug3("getpwuid: homedir [%ls]", homedir_w);
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wcsncpy(pw_homedir, homedir_w, sizeof(pw_homedir));
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//wcsncpy(pw_homedir, homedir_w, sizeof(pw_homedir));
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// convert to ascii from widechar(unicode)
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int rc = WideCharToMultiByte( CP_UTF8, // UTF8/ANSI Code Page
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0, // No special handling of unmapped chars
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homedir_w, // wide-character string to be converted
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-1, // Unicode src str len, -1 means calc it
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pw_homedir_ascii,
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sizeof(pw_homedir_ascii),
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NULL, NULL ); // Unrepresented char replacement - Use Default
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free(homedir_w);
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if ( rc == 0 ) {
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debug3("Could not convert homedirectory [%ls]from unicode to utf8", homedir_w);
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}
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/*
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* Point to the username static variable.
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*/
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pw.pw_name = pw_username;
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pw.pw_passwd = pw_passwd;
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pw.pw_gecos = pw_gecos;
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pw.pw_shell = pw_shellpath;
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pw.pw_dir = pw_homedir;
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//pw.pw_name = pw_username;
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//pw.pw_passwd = pw_passwd;
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//pw.pw_gecos = pw_gecos;
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//pw.pw_shell = pw_shellpath;
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//pw.pw_dir = pw_homedir;
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return &pw;
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}
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@ -112,7 +112,8 @@ AuthorizedKeysFile .ssh/authorized_keys
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#Banner none
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# override default of no subsystems
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Subsystem sftp /usr/libexec/sftp-server
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#Subsystem sftp /usr/libexec/sftp-server
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Subsystem sftp /win32openssh/bin/sftp-server.exe
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# Example of overriding settings on a per-user basis
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#Match User anoncvs
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234
sftp-server.c
234
sftp-server.c
@ -746,12 +746,12 @@ process_open(u_int32_t id)
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char *name;
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int r, handle, fd, flags, mode, status = SSH2_FX_FAILURE;
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#ifdef WIN32_FIXME
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name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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// #ifdef WIN32_FIXME
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// name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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//#else
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if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 )
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif /* WIN32_FIXME */
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//#endif /* WIN32_FIXME */
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if ((r = sshbuf_get_u32(iqueue, &pflags)) != 0 || /* portable flags */
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(r = decode_attrib(iqueue, &a)) != 0)
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@ -900,7 +900,8 @@ process_do_stat(u_int32_t id, int do_lstat)
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#ifdef WIN32_FIXME
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name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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if (realpathWin32(name, resolvedname))
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{
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@ -923,7 +924,7 @@ process_do_stat(u_int32_t id, int do_lstat)
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debug3("request %u: %sstat", id, do_lstat ? "l" : "");
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verbose("%sstat name \"%s\"", do_lstat ? "l" : "", name);
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r = do_lstat ? lstat(name, &st) : stat(name, &st);
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#endif /* WIN32_FIXME */
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#endif /* WIN32_FIXME */
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if (r < 0) {
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status = errno_to_portable(errno);
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} else {
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@ -993,12 +994,8 @@ process_setstat(u_int32_t id)
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char *name;
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int r, status = SSH2_FX_OK;
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#ifdef WIN32_FIXME
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name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 )
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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if ((r = decode_attrib(iqueue, &a)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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@ -1119,13 +1116,8 @@ process_opendir(u_int32_t id)
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char *path;
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int r, handle, status = SSH2_FX_FAILURE;
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#ifdef WIN32_FIXME
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path = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &path, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: opendir", id);
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@ -1225,13 +1217,9 @@ process_remove(u_int32_t id)
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{
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char *name;
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int r, status = SSH2_FX_FAILURE;
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#ifdef WIN32_FIXME
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name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: remove", id);
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logit("remove name \"%s\"", name);
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@ -1248,12 +1236,8 @@ process_mkdir(u_int32_t id)
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char *name;
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int r, mode, status = SSH2_FX_FAILURE;
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#ifdef WIN32_FIXME
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name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0 )
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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if ((r = decode_attrib(iqueue, &a)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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@ -1274,14 +1258,8 @@ process_rmdir(u_int32_t id)
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char *name;
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int r, status;
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#ifdef WIN32_FIXME
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name = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &name, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: rmdir", id);
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logit("rmdir name \"%s\"", name);
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@ -1297,12 +1275,12 @@ process_realpath(u_int32_t id)
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char resolvedname[PATH_MAX];
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char *path;
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int r;
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#ifdef WIN32_FIXME
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path = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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//#ifdef WIN32_FIXME
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//path = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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//#else
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if ((r = sshbuf_get_cstring(iqueue, &path, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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//#endif
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@ -1330,16 +1308,10 @@ process_rename(u_int32_t id)
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int r, status;
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struct stat sb;
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#ifdef WIN32_FIXME
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oldpath = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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newpath = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &oldpath, NULL)) != 0 ||
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(r = sshbuf_get_cstring(iqueue, &newpath, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: rename", id);
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logit("rename old \"%s\" new \"%s\"", oldpath, newpath);
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@ -1496,16 +1468,10 @@ process_extended_posix_rename(u_int32_t id)
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char *oldpath, *newpath;
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int r, status;
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#ifdef WIN32_FIXME
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oldpath = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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newpath = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &oldpath, NULL)) != 0 ||
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(r = sshbuf_get_cstring(iqueue, &newpath, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: posix-rename", id);
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logit("posix-rename old \"%s\" new \"%s\"", oldpath, newpath);
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@ -1653,13 +1619,8 @@ process_extended_statvfs(u_int32_t id)
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int r;
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#ifdef WIN32_FIXME
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path = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &path, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: statvfs", id);
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logit("statvfs \"%s\"", path);
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@ -1706,15 +1667,9 @@ process_extended_hardlink(u_int32_t id)
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char *oldpath, *newpath;
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int r, status;
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#ifdef WIN32_FIXME
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oldpath = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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newpath = buffer_get_string_local8_from_utf8(&iqueue, NULL);
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#else
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if ((r = sshbuf_get_cstring(iqueue, &oldpath, NULL)) != 0 ||
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(r = sshbuf_get_cstring(iqueue, &newpath, NULL)) != 0)
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fatal("%s: buffer error: %s", __func__, ssh_err(r));
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#endif
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debug3("request %u: hardlink", id);
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@ -1876,6 +1831,17 @@ sftp_server_usage(void)
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exit(1);
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}
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#ifdef WIN32_FIXME
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DWORD select_in_handle( HANDLE in_handle)
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{
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DWORD bytesavail = 0 ;
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//rc = WaitForSingleObject (in_handle, 0);
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PeekNamedPipe(in_handle, NULL,0, NULL, &bytesavail, NULL );
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return bytesavail;
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}
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#endif
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int
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sftp_server_main(int argc, char **argv, struct passwd *user_pw)
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{
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@ -1934,8 +1900,9 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw)
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__progname = ssh_get_progname(argv[0]);
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log_init(__progname, log_level, log_facility, log_stderr);
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#endif
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pw = pwcopy(user_pw);
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#endif
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while (!skipargs && (ch = getopt(argc, argv,
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"d:f:l:P:p:Q:u:cehR")) != -1) {
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@ -2039,10 +2006,16 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw)
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out = STDOUT_FILENO;
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#ifdef WIN32_FIXME
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in = GetStdHandle(STD_INPUT_HANDLE);
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out = GetStdHandle(STD_OUTPUT_HANDLE);
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setmode(in, O_BINARY);
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setmode(out, O_BINARY);
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//in = GetStdHandle(STD_INPUT_HANDLE);
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//out = GetStdHandle(STD_OUTPUT_HANDLE);
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//setmode(in, O_BINARY);
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//setmode(out, O_BINARY);
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in = STDIN_FILENO;
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out = STDOUT_FILENO;
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_setmode(in,O_BINARY); // avoid CrLf translations of text mode
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_setmode(out,O_BINARY); // avoid CrLf translation
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HANDLE in_handle = (HANDLE) _get_osfhandle (in);
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#else
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#ifdef HAVE_CYGWIN
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setmode(in, O_BINARY);
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@ -2061,8 +2034,8 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw)
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if ((oqueue = sshbuf_new()) == NULL)
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fatal("%s: sshbuf_new failed", __func__);
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#ifdef WIN32_FIXME
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rset = (fd_set *)xmalloc(sizeof(fd_set));
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wset = (fd_set *)xmalloc(sizeof(fd_set));
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//rset = (fd_set *)xmalloc(sizeof(fd_set));
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//wset = (fd_set *)xmalloc(sizeof(fd_set));
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#else
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set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask);
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rset = xmalloc(set_size);
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@ -2078,16 +2051,10 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw)
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}
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for (;;) {
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#ifdef WIN32_FIXME
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FD_ZERO(rset);
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FD_ZERO(wset);
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#else
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#ifndef WIN32_FIXME
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memset(rset, 0, set_size);
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memset(wset, 0, set_size);
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#endif
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/*
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* Ensure that we can read a full buffer and handle
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@ -2101,83 +2068,64 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw)
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else if (r != SSH_ERR_NO_BUFFER_SPACE)
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fatal("%s: sshbuf_check_reserve failed: %s",
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__func__, ssh_err(r));
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#endif
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#ifdef WIN32_FIXME
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/*
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* FIXME: Change to wrapper to save compatibility
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* with non-socket handles.
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*/
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olen = buffer_len(&oqueue);
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int select_read = 0;
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if ((r = sshbuf_check_reserve(iqueue, sizeof(buf))) == 0 &&
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(r = sshbuf_check_reserve(oqueue,
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SFTP_MAX_MSG_LENGTH)) == 0)
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select_read = 1;
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else if (r != SSH_ERR_NO_BUFFER_SPACE)
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fatal("%s: sshbuf_check_reserve failed: %s",
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__func__, ssh_err(r));
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if (olen > 0)
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{
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FD_SET(out, wset);
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}
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/* send oqueue to stdout */
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olen = sshbuf_len(oqueue);
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if (select(max+1, rset, wset, NULL, NULL) < 0)
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{
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if (errno == EINTR)
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continue;
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if (olen > 0) {
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len = _write(out, sshbuf_ptr(oqueue), olen);
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if (len < 0) {
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error("write: %s", strerror(errno));
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sftp_server_cleanup_exit(1);
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} else if ((r = sshbuf_consume(oqueue, len)) != 0) {
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fatal("%s: buffer error: %s",
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__func__, ssh_err(r));
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}
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}
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error("select: %s", strerror(errno));
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sftp_server_cleanup_exit(2);
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}
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/* copy stdin to iqueue */
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if ( select_read ) {
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if ( select_in_handle(in_handle) || ( sshbuf_len(iqueue) <= 0)) {
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len = _read(in, buf, sizeof buf);
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if (len == 0) {
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debug("read eof");
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sftp_server_cleanup_exit(0);
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} else if (len < 0) {
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error("read: %s", strerror(errno));
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sftp_server_cleanup_exit(1);
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} else if ((r = sshbuf_put(iqueue, buf, len)) != 0) {
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fatal("%s: buffer error: %s",
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__func__, ssh_err(r));
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}
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}
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}
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/* copy stdin to iqueue */
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if (FD_ISSET(in, rset))
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{
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len = recv(in, buf, sizeof buf, 0);
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if (len == 0)
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{
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debug("read eof");
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sftp_server_cleanup_exit(0);
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}
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else if (len < 0)
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{
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error("read: %s", strerror(errno));
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sftp_server_cleanup_exit(1);
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}
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else
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{
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buffer_append(&iqueue, buf, len);
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}
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}
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/* send oqueue to stdout */
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if (FD_ISSET(out, wset))
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{
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len = send(out, buffer_ptr(&oqueue), olen, 0);
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if (len < 0)
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{
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error("write: %s", strerror(errno));
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sftp_server_cleanup_exit(1);
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||||
}
|
||||
else
|
||||
{
|
||||
buffer_consume(&oqueue, len);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Process requests from client if we can fit the results
|
||||
* into the output buffer, otherwise stop processing input
|
||||
* and let the output queue drain.
|
||||
*/
|
||||
|
||||
if (buffer_check_alloc(&oqueue, SFTP_MAX_MSG_LENGTH))
|
||||
{
|
||||
process();
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Process requests from client if we can fit the results
|
||||
* into the output buffer, otherwise stop processing input
|
||||
* and let the output queue drain.
|
||||
*/
|
||||
r = sshbuf_check_reserve(oqueue, SFTP_MAX_MSG_LENGTH);
|
||||
if (r == 0)
|
||||
process();
|
||||
else if (r != SSH_ERR_NO_BUFFER_SPACE)
|
||||
fatal("%s: sshbuf_check_reserve: %s",
|
||||
__func__, ssh_err(r));
|
||||
}
|
||||
#else /* WIN32_FIXME */
|
||||
|
||||
olen = sshbuf_len(oqueue);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user