162bd02ceSWarner Losh /*- 262bd02ceSWarner Losh * Copyright (c) 2015 Allan Jude <allanjude@FreeBSD.org> 362bd02ceSWarner Losh * Copyright (c) 2005-2011 Pawel Jakub Dawidek <pawel@dawidek.net> 462bd02ceSWarner Losh * All rights reserved. 562bd02ceSWarner Losh * 662bd02ceSWarner Losh * Redistribution and use in source and binary forms, with or without 762bd02ceSWarner Losh * modification, are permitted provided that the following conditions 862bd02ceSWarner Losh * are met: 962bd02ceSWarner Losh * 1. Redistributions of source code must retain the above copyright 1062bd02ceSWarner Losh * notice, this list of conditions and the following disclaimer. 1162bd02ceSWarner Losh * 2. Redistributions in binary form must reproduce the above copyright 1262bd02ceSWarner Losh * notice, this list of conditions and the following disclaimer in the 1362bd02ceSWarner Losh * documentation and/or other materials provided with the distribution. 1462bd02ceSWarner Losh * 1562bd02ceSWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 1662bd02ceSWarner Losh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1762bd02ceSWarner Losh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1862bd02ceSWarner Losh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 1962bd02ceSWarner Losh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2062bd02ceSWarner Losh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2162bd02ceSWarner Losh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2262bd02ceSWarner Losh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2362bd02ceSWarner Losh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2462bd02ceSWarner Losh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2562bd02ceSWarner Losh * SUCH DAMAGE. 2662bd02ceSWarner Losh */ 2762bd02ceSWarner Losh 2862bd02ceSWarner Losh #include <crypto/intake.h> 2962bd02ceSWarner Losh 3062bd02ceSWarner Losh #ifndef _GELIBOOT_H_ 3162bd02ceSWarner Losh #define _GELIBOOT_H_ 3262bd02ceSWarner Losh 33c1418270SIan Lepore #include <geom/eli/g_eli.h> 34c1418270SIan Lepore 3562bd02ceSWarner Losh #ifndef DEV_BSIZE 3662bd02ceSWarner Losh #define DEV_BSIZE 512 3762bd02ceSWarner Losh #endif 3862bd02ceSWarner Losh #ifndef DEV_GELIBOOT_BSIZE 3962bd02ceSWarner Losh #define DEV_GELIBOOT_BSIZE 4096 4062bd02ceSWarner Losh #endif 4162bd02ceSWarner Losh 4262bd02ceSWarner Losh #ifndef MIN 4362bd02ceSWarner Losh #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 4462bd02ceSWarner Losh #endif 4562bd02ceSWarner Losh 4662bd02ceSWarner Losh #define GELI_MAX_KEYS 64 4762bd02ceSWarner Losh #define GELI_PW_MAXLEN 256 48c1418270SIan Lepore #define GELI_KEYBUF_SIZE (sizeof(struct keybuf) + \ 49c1418270SIan Lepore (GELI_MAX_KEYS * sizeof(struct keybuf_ent))) 5062bd02ceSWarner Losh 51de776da3SToomas Soome typedef enum geli_op { 52de776da3SToomas Soome GELI_DECRYPT, 53de776da3SToomas Soome GELI_ENCRYPT 54de776da3SToomas Soome } geli_op_t; 55de776da3SToomas Soome 5662bd02ceSWarner Losh extern void pwgets(char *buf, int n, int hide); 5762bd02ceSWarner Losh 58c1418270SIan Lepore typedef u_char geli_ukey[G_ELI_USERKEYLEN]; 5962bd02ceSWarner Losh 60c1418270SIan Lepore /* 61c1418270SIan Lepore * An opaque struct used internally by geliboot functions. Returned by 62c1418270SIan Lepore * geli_taste(), a pointer to one of these is essentially a device handle. There 63c1418270SIan Lepore * is no need to release or free or "give back" the pointer. 64c1418270SIan Lepore */ 65c1418270SIan Lepore struct geli_dev; 6662bd02ceSWarner Losh 67c1418270SIan Lepore /* Forward decls. */ 68c1418270SIan Lepore struct open_file; 69c1418270SIan Lepore struct preloaded_file; 7062bd02ceSWarner Losh 71c1418270SIan Lepore /* 72c1418270SIan Lepore * Low-level interface, used by early-stage bootloaders... 73c1418270SIan Lepore */ 74c1418270SIan Lepore 75c1418270SIan Lepore /* Read callback function type for geli_taste(). */ 76c1418270SIan Lepore typedef int (*geli_readfunc)(void *vdev, void *readpriv, off_t offbytes, 77c1418270SIan Lepore void *buf, size_t sizebytes); 78c1418270SIan Lepore 79c1418270SIan Lepore struct geli_dev *geli_taste(geli_readfunc readfunc, void *readpriv, 80c1418270SIan Lepore daddr_t lastsector, const char *namefmt, ...); 81de776da3SToomas Soome int geli_io(struct geli_dev *gdev, geli_op_t, off_t offset, u_char *buf, 82de776da3SToomas Soome size_t bytes); 83c1418270SIan Lepore int geli_havekey(struct geli_dev *gdev); 84c1418270SIan Lepore int geli_passphrase(struct geli_dev *gdev, char *pw); 85c1418270SIan Lepore 86c1418270SIan Lepore /* 87c1418270SIan Lepore * Libsa device-and-file-level interface. 88c1418270SIan Lepore */ 89c1418270SIan Lepore void geli_probe_and_attach(struct open_file *f); 90c1418270SIan Lepore 91c1418270SIan Lepore /* 92c1418270SIan Lepore * Manage key data. 93c1418270SIan Lepore */ 94c1418270SIan Lepore void geli_add_key(geli_ukey key); 95c1418270SIan Lepore void geli_import_key_buffer(struct keybuf *keybuf); 96c1418270SIan Lepore void geli_export_key_buffer(struct keybuf *keybuf); 97c1418270SIan Lepore void geli_export_key_metadata(struct preloaded_file *kfp); 9862bd02ceSWarner Losh 9962bd02ceSWarner Losh #endif /* _GELIBOOT_H_ */ 100