diff options
Diffstat (limited to 'winsup/cygwin/uinfo.cc')
| -rw-r--r-- | winsup/cygwin/uinfo.cc | 579 |
1 files changed, 0 insertions, 579 deletions
diff --git a/winsup/cygwin/uinfo.cc b/winsup/cygwin/uinfo.cc deleted file mode 100644 index 6fca2fde8..000000000 --- a/winsup/cygwin/uinfo.cc +++ /dev/null @@ -1,579 +0,0 @@ -/* uinfo.cc: user info (uid, gid, etc...) - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <pwd.h> -#include <unistd.h> -#include <winnls.h> -#include <wininet.h> -#include <utmp.h> -#include <limits.h> -#include <stdlib.h> -#include <lm.h> -#include <sys/cygwin.h> -#include "pinfo.h" -#include "security.h" -#include "path.h" -#include "fhandler.h" -#include "dtable.h" -#include "cygerrno.h" -#include "cygheap.h" -#include "registry.h" -#include "child_info.h" -#include "environ.h" -#include "pwdgrp.h" - -/* Initialize the part of cygheap_user that does not depend on files. - The information is used in shared.cc for the user shared. - Final initialization occurs in uinfo_init */ -void -cygheap_user::init () -{ - char user_name[UNLEN + 1]; - DWORD user_name_len = UNLEN + 1; - - set_name (GetUserName (user_name, &user_name_len) ? user_name : "unknown"); - - if (!wincap.has_security ()) - return; - - HANDLE ptok; - DWORD siz; - PSECURITY_DESCRIPTOR psd; - - if (!OpenProcessToken (hMainProc, TOKEN_ADJUST_DEFAULT | TOKEN_QUERY, - &ptok)) - { - system_printf ("OpenProcessToken(), %E"); - return; - } - if (!GetTokenInformation (ptok, TokenPrimaryGroup, - &groups.pgsid, sizeof (cygsid), &siz)) - system_printf ("GetTokenInformation (TokenPrimaryGroup), %E"); - - /* Get the SID from current process and store it in effec_cygsid */ - if (!GetTokenInformation (ptok, TokenUser, &effec_cygsid, sizeof (cygsid), &siz)) - { - system_printf ("GetTokenInformation (TokenUser), %E"); - goto out; - } - - /* Set token owner to the same value as token user */ - if (!SetTokenInformation (ptok, TokenOwner, &effec_cygsid, sizeof (cygsid))) - debug_printf ("SetTokenInformation(TokenOwner), %E"); - - /* Standard way to build a security descriptor with the usual DACL */ - char sa_buf[1024]; - psd = (PSECURITY_DESCRIPTOR) (sec_user_nih (sa_buf, sid()))->lpSecurityDescriptor; - - BOOL acl_exists, dummy; - TOKEN_DEFAULT_DACL dacl; - if (GetSecurityDescriptorDacl (psd, &acl_exists, - &dacl.DefaultDacl, &dummy) - && acl_exists && dacl.DefaultDacl) - { - /* Set the default DACL and the process DACL */ - if (!SetTokenInformation (ptok, TokenDefaultDacl, &dacl, sizeof (dacl))) - system_printf ("SetTokenInformation (TokenDefaultDacl), %E"); - if (!SetKernelObjectSecurity (hMainProc, DACL_SECURITY_INFORMATION, psd)) - system_printf ("SetKernelObjectSecurity, %E"); - } - else - system_printf("Cannot get dacl, %E"); - out: - CloseHandle (ptok); -} - -void -internal_getlogin (cygheap_user &user) -{ - struct passwd *pw = NULL; - - if (wincap.has_security ()) - { - cygpsid psid = user.sid (); - pw = internal_getpwsid (psid); - } - - if (!pw && !(pw = internal_getpwnam (user.name ())) - && !(pw = internal_getpwuid (DEFAULT_UID))) - debug_printf ("user not found in augmented /etc/passwd"); - else - { - myself->uid = pw->pw_uid; - myself->gid = pw->pw_gid; - user.set_name (pw->pw_name); - if (wincap.has_security ()) - { - cygsid gsid; - if (gsid.getfromgr (internal_getgrgid (pw->pw_gid))) - { - HANDLE ptok; - if (gsid != user.groups.pgsid - && OpenProcessToken (hMainProc, TOKEN_ADJUST_DEFAULT, &ptok)) - { - /* Set primary group to the group in /etc/passwd. */ - if (!SetTokenInformation (ptok, TokenPrimaryGroup, - &gsid, sizeof gsid)) - debug_printf ("SetTokenInformation(TokenPrimaryGroup), %E"); - else - user.groups.pgsid = gsid; - CloseHandle (ptok); - } - } - else - debug_printf ("gsid not found in augmented /etc/group"); - } - } - (void) cygheap->user.ontherange (CH_HOME, pw); - - return; -} - -void -uinfo_init () -{ - if (child_proc_info && !cygheap->user.has_impersonation_tokens ()) - return; - - if (!child_proc_info) - internal_getlogin (cygheap->user); /* Set the cygheap->user. */ - /* Conditions must match those in spawn to allow starting child - processes with ruid != euid and rgid != egid. */ - else if (cygheap->user.issetuid () - && cygheap->user.saved_uid == cygheap->user.real_uid - && cygheap->user.saved_gid == cygheap->user.real_gid - && !cygheap->user.groups.issetgroups ()) - { - cygheap->user.reimpersonate (); - return; - } - else - cygheap->user.close_impersonation_tokens (); - - cygheap->user.saved_uid = cygheap->user.real_uid = myself->uid; - cygheap->user.saved_gid = cygheap->user.real_gid = myself->gid; - cygheap->user.external_token = INVALID_HANDLE_VALUE; - cygheap->user.internal_token = INVALID_HANDLE_VALUE; - cygheap->user.current_token = INVALID_HANDLE_VALUE; - cygheap->user.set_saved_sid (); /* Update the original sid */ -} - -extern "C" int -getlogin_r (char *name, size_t namesize) -{ - char *login = getlogin (); - size_t len = strlen (login) + 1; - if (len > namesize) - return ERANGE; - int err = __check_null_invalid_struct (name, len); - if (err) - return err; - strncpy (name, login, len); - return 0; -} - -extern "C" char * -getlogin (void) -{ - return strcpy (_my_tls.locals.username, cygheap->user.name ()); -} - -extern "C" __uid32_t -getuid32 (void) -{ - return cygheap->user.real_uid; -} - -extern "C" __uid16_t -getuid (void) -{ - return cygheap->user.real_uid; -} - -extern "C" __gid32_t -getgid32 (void) -{ - return cygheap->user.real_gid; -} - -extern "C" __gid16_t -getgid (void) -{ - return cygheap->user.real_gid; -} - -extern "C" __uid32_t -geteuid32 (void) -{ - return myself->uid; -} - -extern "C" __uid16_t -geteuid (void) -{ - return myself->uid; -} - -extern "C" __gid32_t -getegid32 (void) -{ - return myself->gid; -} - -extern "C" __gid16_t -getegid (void) -{ - return myself->gid; -} - -/* Not quite right - cuserid can change, getlogin can't */ -extern "C" char * -cuserid (char *src) -{ - if (!src) - return getlogin (); - - strcpy (src, getlogin ()); - return src; -} - -const char * -cygheap_user::ontherange (homebodies what, struct passwd *pw) -{ - LPUSER_INFO_3 ui = NULL; - WCHAR wuser[UNLEN + 1]; - NET_API_STATUS ret; - char homepath_env_buf[CYG_MAX_PATH + 1]; - char homedrive_env_buf[3]; - char *newhomedrive = NULL; - char *newhomepath = NULL; - - - debug_printf ("what %d, pw %p", what, pw); - if (what == CH_HOME) - { - char *p; - if (homedrive) - newhomedrive = homedrive; - else if ((p = getenv ("HOMEDRIVE"))) - newhomedrive = p; - - if (homepath) - newhomepath = homepath; - else if ((p = getenv ("HOMEPATH"))) - newhomepath = p; - - if ((p = getenv ("HOME"))) - debug_printf ("HOME is already in the environment %s", p); - else - { - if (pw && pw->pw_dir && *pw->pw_dir) - { - debug_printf ("Set HOME (from /etc/passwd) to %s", pw->pw_dir); - setenv ("HOME", pw->pw_dir, 1); - } - else if (!newhomedrive || !newhomepath) - setenv ("HOME", "/", 1); - else - { - char home[CYG_MAX_PATH]; - char buf[CYG_MAX_PATH + 1]; - strcpy (buf, newhomedrive); - strcat (buf, newhomepath); - cygwin_conv_to_full_posix_path (buf, home); - debug_printf ("Set HOME (from HOMEDRIVE/HOMEPATH) to %s", home); - setenv ("HOME", home, 1); - } - } - } - - if (what != CH_HOME && homepath == NULL && newhomepath == NULL) - { - if (!pw) - pw = internal_getpwnam (name ()); - if (pw && pw->pw_dir && *pw->pw_dir) - cygwin_conv_to_full_win32_path (pw->pw_dir, homepath_env_buf); - else - { - homepath_env_buf[0] = homepath_env_buf[1] = '\0'; - if (logsrv ()) - { - WCHAR wlogsrv[INTERNET_MAX_HOST_NAME_LENGTH + 3]; - sys_mbstowcs (wlogsrv, logsrv (), - sizeof (wlogsrv) / sizeof (*wlogsrv)); - sys_mbstowcs (wuser, winname (), sizeof (wuser) / sizeof (*wuser)); - if (!(ret = NetUserGetInfo (wlogsrv, wuser, 3, (LPBYTE *) &ui))) - { - sys_wcstombs (homepath_env_buf, ui->usri3_home_dir, CYG_MAX_PATH); - if (!homepath_env_buf[0]) - { - sys_wcstombs (homepath_env_buf, ui->usri3_home_dir_drive, - CYG_MAX_PATH); - if (homepath_env_buf[0]) - strcat (homepath_env_buf, "\\"); - else - cygwin_conv_to_full_win32_path ("/", homepath_env_buf); - } - } - } - if (ui) - NetApiBufferFree (ui); - } - - if (homepath_env_buf[1] != ':') - { - newhomedrive = almost_null; - newhomepath = homepath_env_buf; - } - else - { - homedrive_env_buf[0] = homepath_env_buf[0]; - homedrive_env_buf[1] = homepath_env_buf[1]; - homedrive_env_buf[2] = '\0'; - newhomedrive = homedrive_env_buf; - newhomepath = homepath_env_buf + 2; - } - } - - if (newhomedrive && newhomedrive != homedrive) - cfree_and_set (homedrive, (newhomedrive == almost_null) - ? almost_null : cstrdup (newhomedrive)); - - if (newhomepath && newhomepath != homepath) - cfree_and_set (homepath, cstrdup (newhomepath)); - - switch (what) - { - case CH_HOMEDRIVE: - return homedrive; - case CH_HOMEPATH: - return homepath; - default: - return homepath; - } -} - -const char * -cygheap_user::test_uid (char *&what, const char *name, size_t namelen) -{ - if (!what && !issetuid ()) - what = getwinenveq (name, namelen, HEAP_STR); - return what; -} - -const char * -cygheap_user::env_logsrv (const char *name, size_t namelen) -{ - if (test_uid (plogsrv, name, namelen)) - return plogsrv; - - const char *mydomain = domain (); - const char *myname = winname (); - if (!mydomain || strcasematch (myname, "SYSTEM")) - return almost_null; - - char logsrv[INTERNET_MAX_HOST_NAME_LENGTH + 3]; - cfree_and_set (plogsrv, almost_null); - if (get_logon_server (mydomain, logsrv, NULL)) - plogsrv = cstrdup (logsrv); - return plogsrv; -} - -const char * -cygheap_user::env_domain (const char *name, size_t namelen) -{ - if (pwinname && test_uid (pdomain, name, namelen)) - return pdomain; - - char username[UNLEN + 1]; - DWORD ulen = sizeof (username); - char userdomain[DNLEN + 1]; - DWORD dlen = sizeof (userdomain); - SID_NAME_USE use; - - cfree_and_set (pwinname, almost_null); - cfree_and_set (pdomain, almost_null); - if (!LookupAccountSid (NULL, sid (), username, &ulen, - userdomain, &dlen, &use)) - __seterrno (); - else - { - pwinname = cstrdup (username); - pdomain = cstrdup (userdomain); - } - return pdomain; -} - -const char * -cygheap_user::env_userprofile (const char *name, size_t namelen) -{ - if (test_uid (puserprof, name, namelen)) - return puserprof; - - char userprofile_env_buf[CYG_MAX_PATH + 1]; - cfree_and_set (puserprof, almost_null); - /* FIXME: Should this just be setting a puserprofile like everything else? */ - const char *myname = winname (); - if (myname && strcasematch (myname, "SYSTEM") - && get_registry_hive_path (sid (), userprofile_env_buf)) - puserprof = cstrdup (userprofile_env_buf); - - return puserprof; -} - -const char * -cygheap_user::env_homepath (const char *name, size_t namelen) -{ - return ontherange (CH_HOMEPATH); -} - -const char * -cygheap_user::env_homedrive (const char *name, size_t namelen) -{ - return ontherange (CH_HOMEDRIVE); -} - -const char * -cygheap_user::env_name (const char *name, size_t namelen) -{ - if (!test_uid (pwinname, name, namelen)) - (void) domain (); - return pwinname; -} - -const char * -cygheap_user::env_systemroot (const char *name, size_t namelen) -{ - if (!psystemroot) - { - int size = GetWindowsDirectory (NULL, 0); - if (size > 0) - { - psystemroot = (char *) cmalloc (HEAP_STR, ++size); - size = GetWindowsDirectory (psystemroot, size); - if (size <= 0) - { - cfree (psystemroot); - psystemroot = NULL; - } - } - if (size <= 0) - debug_printf ("GetWindowsDirectory(), %E"); - } - return psystemroot; -} - -char * -pwdgrp::next_str (char c) -{ - char *res = lptr; - lptr = strechr (lptr, c); - if (*lptr) - *lptr++ = '\0'; - return res; -} - -bool -pwdgrp::next_num (unsigned long& n) -{ - char *p = next_str (':'); - char *cp; - n = strtoul (p, &cp, 10); - return p != cp && !*cp; -} - -char * -pwdgrp::add_line (char *eptr) -{ - if (eptr) - { - lptr = eptr; - eptr = strchr (lptr, '\n'); - if (eptr) - { - if (eptr > lptr && eptr[-1] == '\r') - eptr[-1] = '\0'; - else - *eptr = '\0'; - eptr++; - } - if (curr_lines >= max_lines) - { - max_lines += 10; - *pwdgrp_buf = realloc (*pwdgrp_buf, max_lines * pwdgrp_buf_elem_size); - } - if ((this->*parse) ()) - curr_lines++; - } - return eptr; -} - -void -pwdgrp::load (const char *posix_fname) -{ - const char *res; - static const char failed[] = "failed"; - static const char succeeded[] = "succeeded"; - - if (buf) - free (buf); - buf = NULL; - curr_lines = 0; - - pc.check (posix_fname); - etc_ix = etc::init (etc_ix, pc); - - paranoid_printf ("%s", posix_fname); - - if (pc.error || !pc.exists () || pc.isdir ()) - { - paranoid_printf ("strange path_conv problem"); - res = failed; - } - else - { - HANDLE fh = CreateFile (pc, GENERIC_READ, wincap.shared (), NULL, - OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); - if (fh == INVALID_HANDLE_VALUE) - { - paranoid_printf ("%s CreateFile failed, %E"); - res = failed; - } - else - { - DWORD size = GetFileSize (fh, NULL), read_bytes; - buf = (char *) malloc (size + 1); - if (!ReadFile (fh, buf, size, &read_bytes, NULL)) - { - paranoid_printf ("ReadFile failed, %E"); - CloseHandle (fh); - if (buf) - free (buf); - buf = NULL; - res = failed; - } - else - { - CloseHandle (fh); - buf[read_bytes] = '\0'; - char *eptr = buf; - while ((eptr = add_line (eptr))) - continue; - debug_printf ("%s curr_lines %d", posix_fname, curr_lines); - res = succeeded; - } - } - } - - debug_printf ("%s load %s", posix_fname, res); - initialized = true; - return; -} |