mirror of
https://github.com/xen-project/xen.git
synced 2026-10-29 18:50:05 +01:00
kaf24@firebug.cl.cam.ac.uk
d8263e8dba
use stdint-format bitsize types (uint32_t and friends). Signed-off-by: Keir Fraser <keir@xensource.com>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*
|
|
Common routines between Xen store user library and daemon.
|
|
Copyright (C) 2005 Rusty Russell IBM Corporation
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _XS_LIB_H
|
|
#define _XS_LIB_H
|
|
|
|
#include <stdbool.h>
|
|
#include <limits.h>
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
#include <xen/io/xs_wire.h>
|
|
|
|
/* Bitmask of permissions. */
|
|
enum xs_perm_type {
|
|
XS_PERM_NONE = 0,
|
|
XS_PERM_READ = 1,
|
|
XS_PERM_WRITE = 2,
|
|
/* Internal use. */
|
|
XS_PERM_ENOENT_OK = 4,
|
|
XS_PERM_OWNER = 8,
|
|
};
|
|
|
|
struct xs_permissions
|
|
{
|
|
unsigned int id;
|
|
enum xs_perm_type perms;
|
|
};
|
|
|
|
/* Each 10 bits takes ~ 3 digits, plus one, plus one for nul terminator. */
|
|
#define MAX_STRLEN(x) ((sizeof(x) * CHAR_BIT + CHAR_BIT-1) / 10 * 3 + 2)
|
|
|
|
/* Path for various daemon things: env vars can override. */
|
|
const char *xs_daemon_socket(void);
|
|
const char *xs_daemon_socket_ro(void);
|
|
const char *xs_domain_dev(void);
|
|
const char *xs_daemon_tdb(void);
|
|
|
|
/* Simple write function: loops for you. */
|
|
bool xs_write_all(int fd, const void *data, unsigned int len);
|
|
|
|
/* Convert strings to permissions. False if a problem. */
|
|
bool xs_strings_to_perms(struct xs_permissions *perms, unsigned int num,
|
|
const char *strings);
|
|
|
|
/* Convert permissions to a string (up to len MAX_STRLEN(unsigned int)+1). */
|
|
bool xs_perm_to_string(const struct xs_permissions *perm, char *buffer);
|
|
|
|
/* Given a string and a length, count how many strings (nul terms). */
|
|
unsigned int xs_count_strings(const char *strings, unsigned int len);
|
|
|
|
#endif /* _XS_LIB_H */
|