2 * Copyright (c) 2015 Allan Jude <allanjude@FreeBSD.org>
3 * Copyright (c) 2005-2011 Pawel Jakub Dawidek <pawel@dawidek.net>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <crypto/intake.h>
35 #include <geom/eli/g_eli.h>
40 #ifndef DEV_GELIBOOT_BSIZE
41 #define DEV_GELIBOOT_BSIZE 4096
45 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
48 #define GELI_MAX_KEYS 64
49 #define GELI_PW_MAXLEN 256
50 #define GELI_KEYBUF_SIZE (sizeof(struct keybuf) + \
51 (GELI_MAX_KEYS * sizeof(struct keybuf_ent)))
53 extern void pwgets(char *buf, int n, int hide);
55 typedef u_char geli_ukey[G_ELI_USERKEYLEN];
58 * An opaque struct used internally by geliboot functions. Returned by
59 * geli_taste(), a pointer to one of these is essentially a device handle. There
60 * is no need to release or free or "give back" the pointer.
66 struct preloaded_file;
69 * Low-level interface, used by early-stage bootloaders...
72 /* Read callback function type for geli_taste(). */
73 typedef int (*geli_readfunc)(void *vdev, void *readpriv, off_t offbytes,
74 void *buf, size_t sizebytes);
76 struct geli_dev * geli_taste(geli_readfunc readfunc, void *readpriv,
77 daddr_t lastsector, const char *namefmt, ...);
78 int geli_read(struct geli_dev *gdev, off_t offset, u_char *buf, size_t bytes);
79 int geli_havekey(struct geli_dev *gdev);
80 int geli_passphrase(struct geli_dev *gdev, char *pw);
83 * Libsa device-and-file-level interface.
85 void geli_probe_and_attach(struct open_file *f);
90 void geli_add_key(geli_ukey key);
91 void geli_import_key_buffer(struct keybuf *keybuf);
92 void geli_export_key_buffer(struct keybuf *keybuf);
93 void geli_export_key_metadata(struct preloaded_file *kfp);
95 #endif /* _GELIBOOT_H_ */