mirror of
https://github.com/morgan9e/grd
synced 2026-04-14 00:14:18 +09:00
130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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* Copyright (C) 2020 Pascal Nowack
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include "config.h"
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#include "grd-rdp-sam.h"
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#include <fcntl.h>
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#include <gio/gio.h>
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#include <glib/gstdio.h>
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#include <stdint.h>
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#include <sys/stat.h>
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#include <winpr/ntlm.h>
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void
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grd_rdp_sam_free_sam_file (GrdRdpSAMFile *rdp_sam_file)
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{
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if (rdp_sam_file->fd >= 0)
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{
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unlink (rdp_sam_file->filename);
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close (rdp_sam_file->fd);
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}
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g_free (rdp_sam_file->filename);
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g_free (rdp_sam_file);
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}
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static char *
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create_sam_string (const char *username,
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const char *password)
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{
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uint32_t username_length;
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uint32_t password_length;
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uint32_t i;
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char *sam_string;
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uint8_t nt_hash[16];
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username_length = strlen (username);
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password_length = strlen (password);
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sam_string = g_malloc0 ((username_length + 3 + 32 + 3 + 1 + 1) * sizeof (char));
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NTOWFv1A ((LPSTR) password, password_length, nt_hash);
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sprintf (sam_string, "%s:::", username);
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for (i = 0; i < 16; ++i)
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sprintf (sam_string + strlen (sam_string), "%02" PRIx8 "", nt_hash[i]);
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sprintf (sam_string + strlen (sam_string), ":::\n");
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return sam_string;
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}
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GrdRdpSAMFile *
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grd_rdp_sam_create_sam_file (const char *username,
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const char *password)
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{
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const char *grd_path = "/gnome-remote-desktop";
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const char *template = "/rdp-sam-XXXXXX";
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int duped_fd;
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GrdRdpSAMFile *rdp_sam_file;
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g_autofree char *file_dir = NULL;
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g_autofree char *filename = NULL;
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g_autofree char *sam_string = NULL;
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g_autofd int fd = -1;
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FILE *sam_file;
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file_dir = g_strdup_printf ("%s%s", g_get_user_runtime_dir (), grd_path);
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filename = g_strdup_printf ("%s%s%s", g_get_user_runtime_dir (), grd_path,
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template);
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if (g_access (file_dir, F_OK) &&
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mkdir (file_dir, 0700))
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{
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g_warning ("Failed to create base runtime directory for "
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"gnome-remote-desktop: %s", g_strerror (errno));
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return NULL;
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}
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fd = g_mkstemp (filename);
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if (fd < 0)
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{
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g_warning ("[RDP] g_mkstemp() failed: %s", g_strerror (errno));
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return NULL;
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}
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sam_file = fdopen (fd, "w+");
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if (!sam_file)
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{
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g_warning ("[RDP] Failed to open SAM database: %s", g_strerror (errno));
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return NULL;
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}
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duped_fd = dup (fd);
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if (duped_fd < 0)
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{
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fclose (sam_file);
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g_warning ("[RDP] Failed to dup fd: %s", g_strerror (errno));
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return NULL;
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}
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rdp_sam_file = g_new0 (GrdRdpSAMFile, 1);
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rdp_sam_file->fd = duped_fd;
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rdp_sam_file->filename = g_steal_pointer (&filename);
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g_steal_fd (&fd);
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sam_string = create_sam_string (username, password);
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fputs (sam_string, sam_file);
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fclose (sam_file);
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return rdp_sam_file;
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}
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