157 lines
4.3 KiB
C
157 lines
4.3 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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*
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* @file env.c
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* @brief User environment handling code
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* @author Jay Sorg
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*
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*/
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#include "list.h"
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#include "sesman.h"
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#include "sys/types.h"
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#include "grp.h"
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extern unsigned char g_fixedkey[8]; /* in sesman.c */
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extern struct config_sesman *g_cfg; /* in sesman.c */
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/******************************************************************************/
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int DEFAULT_CC
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env_check_password_file(char *filename, char *password)
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{
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char encryptedPasswd[16];
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int fd;
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g_memset(encryptedPasswd, 0, 16);
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g_strncpy(encryptedPasswd, password, 8);
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rfbDesKey(g_fixedkey, 0);
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rfbDes((unsigned char *)encryptedPasswd, (unsigned char *)encryptedPasswd);
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fd = g_file_open(filename);
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if (fd == -1)
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{
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log_message(LOG_LEVEL_WARNING,
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"can't read vnc password file - %s",
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filename);
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return 1;
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}
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g_file_write(fd, encryptedPasswd, 8);
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g_file_close(fd);
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return 0;
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}
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/******************************************************************************/
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int DEFAULT_CC
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env_set_user(char *username, char *passwd_file, int display,
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struct list *env_names, struct list* env_values)
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{
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int error;
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int pw_uid;
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int pw_gid;
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int uid;
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int index;
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char *name;
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char *value;
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char pw_shell[256];
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char pw_dir[256];
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char pw_gecos[256];
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char text[256];
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error = g_getuser_info(username, &pw_gid, &pw_uid, pw_shell, pw_dir,
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pw_gecos);
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if (error == 0)
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{
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g_rm_temp_dir();
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error = g_setgid(pw_gid);
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if (error == 0)
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{
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error = g_initgroups(username, pw_gid);
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}
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if (error == 0)
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{
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uid = pw_uid;
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error = g_setuid(uid);
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}
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g_mk_temp_dir(0);
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if (error == 0)
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{
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g_clearenv();
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g_setenv("SHELL", pw_shell, 1);
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g_setenv("PATH", "/bin:/usr/bin:/usr/local/bin", 1);
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g_setenv("USER", username, 1);
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g_sprintf(text, "%d", uid);
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g_setenv("UID", text, 1);
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g_setenv("HOME", pw_dir, 1);
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g_set_current_dir(pw_dir);
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g_sprintf(text, ":%d.0", display);
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g_setenv("DISPLAY", text, 1);
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g_setenv("LANG", "en_US.UTF-8", 1);
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g_setenv("XRDP_SESSION", "1", 1);
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if ((env_names != 0) && (env_values != 0) &&
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(env_names->count == env_values->count))
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{
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for (index = 0; index < env_names->count; index++)
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{
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name = (char *) list_get_item(env_names, index),
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value = (char *) list_get_item(env_values, index),
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g_setenv(name, value, 1);
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}
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}
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if (passwd_file != 0)
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{
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if (0 == g_cfg->auth_file_path)
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{
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/* if no auth_file_path is set, then we go for
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$HOME/.vnc/sesman_username_passwd */
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if (g_mkdir(".vnc") < 0)
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{
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log_message(LOG_LEVEL_ERROR,
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"env_set_user: error creating .vnc dir");
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}
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g_sprintf(passwd_file, "%s/.vnc/sesman_%s_passwd", pw_dir, username);
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}
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else
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{
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/* we use auth_file_path as requested */
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g_sprintf(passwd_file, g_cfg->auth_file_path, username);
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}
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LOG_DBG("pass file: %s", passwd_file);
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}
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}
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}
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else
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{
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log_message(LOG_LEVEL_ERROR,
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"error getting user info for user %s", username);
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}
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return error;
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}
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