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* cygwin.din: Define symbols for `cygwin_logon_user' and

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`cygwin_set_impersonation_token'.
        * dcrt0.cc (dll_crt0_1): Eliminate superfluous conditional
        statements.
        Add load statements for `ImpersonateLoggedOnUser', `LogonUserA'
        and `RevertToSelf'.
        * fork.cc (fork): Care for correct impersonation of parent
        and child process.
        * security.cc (cygwin_set_impersonation_token): New function.
        (cygwin_logon_user): Ditto.
        shared.h (class pinfo): New members `orig_uid', `orig_gid',
        `real_uid' nad `real_gid'.
        spawn.cc (spawn_guts): Care for impersonation when starting
        child process in a different user context.
        * syscalls.cc (setgid): Call `setegid' now. Set real_gid.
        (setuid): Call `seteuid' now. Set real_uid.
        (seteuid): Functionality moved from setuid to here. Care for
        correct impersonation.
        (setegid): Functionality moved from setgid to here.
        * uinfo.cc (uinfo_init): Initialization of additional pinfo
        members.
        (getuid): Return real uid.
        (getgid): Return real gid.
        (geteuid): Return effective uid.
        (getegid): Return effective gid.
        include/sys/cygwin.h: Add prototypes for `cygwin_logon_user' and
        `cygwin_set_impersonation_token'.
        include/cygwin/version.h: Bumb API minor version to 22.
This commit is contained in:
Corinna Vinschen
2000-06-16 19:36:07 +00:00
parent 3875d9e652
commit 64b3062937
11 changed files with 261 additions and 64 deletions
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67
winsup/cygwin/security.cc
View File

@@ -374,6 +374,73 @@ got_it:
return TRUE;
}
extern "C"
void
cygwin_set_impersonation_token (const HANDLE hToken)
{
debug_printf ("set_impersonation_token (%d)", hToken);
if (myself->token != hToken)
{
if (myself->token != INVALID_HANDLE_VALUE)
CloseHandle (myself->token);
myself->token = hToken;
myself->impersonated = FALSE;
}
}
extern "C"
HANDLE
cygwin_logon_user (const struct passwd *pw, const char *password)
{
if (os_being_run != winNT)
{
set_errno (ENOSYS);
return INVALID_HANDLE_VALUE;
}
if (!pw)
{
set_errno (EINVAL);
return INVALID_HANDLE_VALUE;
}
char *c, *nt_user, *nt_domain = NULL;
char usernamebuf[256];
HANDLE hToken;
strcpy (usernamebuf, pw->pw_name);
if (pw->pw_gecos)
{
if ((c = strstr (pw->pw_gecos, "U-")) != NULL &&
(c == pw->pw_gecos || c[-1] == ','))
{
usernamebuf[0] = '\0';
strncat (usernamebuf, c + 2, 255);
if ((c = strchr (usernamebuf, ',')) != NULL)
*c = '\0';
}
}
nt_user = usernamebuf;
if ((c = strchr (nt_user, '\\')) != NULL)
{
nt_domain = nt_user;
*c = '\0';
nt_user = c + 1;
}
if (! LogonUserA (nt_user, nt_domain, (char *) password,
LOGON32_LOGON_INTERACTIVE,
LOGON32_PROVIDER_DEFAULT,
&hToken)
|| !SetHandleInformation (hToken,
HANDLE_FLAG_INHERIT,
HANDLE_FLAG_INHERIT))
{
__seterrno ();
return INVALID_HANDLE_VALUE;
}
debug_printf ("%d = logon_user(%s,...)", hToken, pw->pw_name);
return hToken;
}
/* read_sd reads a security descriptor from a file.
In case of error, -1 is returned and errno is set.
If sd_buf is too small, 0 is returned and sd_size