xref: /titanic_44/usr/src/cmd/boot/bootadm/bootadm.h (revision 410c4fb9ef2c1b77143344000d65f79d388900d8)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _BOOTADM_H
27 #define	_BOOTADM_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 #include <assert.h>
36 
37 #ifndef	TEXT_DOMAIN
38 #define	TEXT_DOMAIN	"SUNW_OST_OSCMD"
39 #endif  /* TEXT_DOMAIN */
40 
41 /* Type definitions */
42 
43 /* GRUB menu per-line classification */
44 typedef enum {
45 	BAM_INVALID = 0,
46 	BAM_EMPTY,
47 	BAM_COMMENT,
48 	BAM_GLOBAL,
49 	BAM_ENTRY,
50 	BAM_TITLE
51 } menu_flag_t;
52 
53 /* struct for menu.lst contents */
54 typedef struct line {
55 	int  lineNum;	/* Line number in menu.lst */
56 	int  entryNum;	/* menu boot entry #. ENTRY_INIT if not applicable */
57 	char *cmd;
58 	char *sep;
59 	char *arg;
60 	char *line;
61 	menu_flag_t flags;
62 	struct line *next;
63 	struct line *prev;
64 } line_t;
65 
66 typedef struct entry {
67 	struct entry *next;
68 	struct entry *prev;
69 	line_t *start;
70 	line_t *end;
71 	int	entryNum;
72 	uint_t	flags;
73 } entry_t;
74 
75 /* For flags value in entry_t */
76 #define	BAM_ENTRY_BOOTADM	0x01	/* entry created by bootadm */
77 #define	BAM_ENTRY_LU		0x02	/* entry created by Live Upgrade */
78 #define	BAM_ENTRY_CHAINLOADER	0x04	/* chainloader entry; do not disturb */
79 #define	BAM_ENTRY_ROOT		0x08	/* entry has a root line */
80 #define	BAM_ENTRY_FAILSAFE	0x10	/* failsafe entry  */
81 #define	BAM_ENTRY_DBOOT		0x20	/* Is dboot (normal or failsafe) */
82 #define	BAM_ENTRY_32BIT		0x40	/* Is a 32-bit entry */
83 #define	BAM_ENTRY_HV		0x80	/* Is a hypervisor entry */
84 #define	BAM_ENTRY_FINDROOT	0x100	/* entry has a findroot line */
85 #define	BAM_ENTRY_MULTIBOOT	0x200	/* is multiboot (normal or failsafe) */
86 #define	BAM_ENTRY_64BIT		0x400	/* Is a 64-bit entry */
87 
88 typedef struct {
89 	line_t	*start;
90 	line_t	*end;
91 	line_t	*curdefault;	/* line containing default */
92 	line_t	*olddefault;	/* old default line (commented) */
93 	line_t	*old_rc_default;	/* old default line for bootenv.rc */
94 	entry_t	*entries;	/* os entries */
95 } menu_t;
96 
97 typedef enum {
98 	BAM_ERROR = -1,	/* Must be negative. add_boot_entry() depends on it */
99 	BAM_SUCCESS = 0,
100 	BAM_WRITE = 2,
101 	BAM_MSG	/* Used by upgrade_menu() */
102 } error_t;
103 
104 /*
105  * Menu related
106  * menu_cmd_t and menu_cmds must be kept in sync
107  *
108  * The *_DOLLAR_CMD values must be 1 greater than the
109  * respective [KERNEL|MODULE]_CMD values.
110  */
111 typedef enum {
112 	DEFAULT_CMD = 0,
113 	TIMEOUT_CMD,
114 	TITLE_CMD,
115 	ROOT_CMD,
116 	KERNEL_CMD,
117 	KERNEL_DOLLAR_CMD,	/* Must be KERNEL_CMD + 1 */
118 	MODULE_CMD,
119 	MODULE_DOLLAR_CMD,	/* Must be MODULE_CMD + 1 */
120 	SEP_CMD,
121 	COMMENT_CMD,
122 	CHAINLOADER_CMD,
123 	ARGS_CMD,
124 	FINDROOT_CMD
125 } menu_cmd_t;
126 
127 extern char *menu_cmds[];
128 
129 /* For multi- or direct-boot */
130 typedef enum {
131 	BAM_DIRECT_NOT_SET,
132 	BAM_DIRECT_MULTIBOOT,
133 	BAM_DIRECT_DBOOT
134 } direct_or_multi_t;
135 
136 /* Is there a hypervisor present? */
137 typedef enum {
138 	BAM_HV_UNKNOWN,
139 	BAM_HV_NO,
140 	BAM_HV_PRESENT
141 } hv_t;
142 
143 /* Is there findroot capability present ? */
144 typedef enum {
145 	BAM_FINDROOT_UNKNOWN,
146 	BAM_FINDROOT_ABSENT,
147 	BAM_FINDROOT_PRESENT
148 } findroot_t;
149 
150 extern int bam_verbose;
151 extern int bam_force;
152 extern direct_or_multi_t bam_direct;
153 extern hv_t bam_is_hv;
154 extern findroot_t bam_is_findroot;
155 extern int bam_debug;
156 
157 extern void bam_add_line(menu_t *mp, entry_t *entry, line_t *prev, line_t *lp);
158 extern void update_numbering(menu_t *mp);
159 extern error_t upgrade_menu(menu_t *, char *, char *);
160 extern void *s_calloc(size_t, size_t);
161 extern void *s_realloc(void *, size_t);
162 extern char *s_fgets(char *buf, int n, FILE *fp);
163 extern void bam_error(char *format, ...);
164 extern void bam_print(char *, ...);
165 extern void bam_print_stderr(char *format, ...);
166 extern void bam_derror(char *format, ...);
167 extern error_t get_boot_cap(const char *osroot);
168 extern char *get_special(char *);
169 extern char *os_to_grubdisk(char *, int);
170 extern void update_line(line_t *);
171 extern int add_boot_entry(menu_t *, char *, char *, char *, char *, char *);
172 extern int is_grub(const char *);
173 extern char *get_grubsign(char *osroot, char *osdev);
174 extern char *get_grubroot(char *osroot, char *osdev, char *menu_root);
175 extern int root_optional(char *osroot, char *menu_root);
176 extern void unlink_line(menu_t *mp, line_t *lp);
177 extern void line_free(line_t *lp);
178 extern char *s_strdup(char *);
179 extern int is_sparc(void);
180 
181 #define	BAM_MAXLINE	8192
182 
183 /* menu.lst comments created by bootadm */
184 #define	BAM_BOOTADM_HDR	"---------- ADDED BY BOOTADM - DO NOT EDIT ----------"
185 #define	BAM_BOOTADM_FTR	"---------------------END BOOTADM--------------------"
186 
187 /*
188  * menu.lst comments create by Live Upgrade.  Note that these are the end of
189  * the comment strings - there will be other text before them.
190  */
191 #define	BAM_LU_HDR	" - ADDED BY LIVE UPGRADE - DO NOT EDIT  -----"
192 #define	BAM_LU_FTR	" -------------- END LIVE UPGRADE ------------"
193 
194 #define	BAM_OLDDEF	"BOOTADM SAVED DEFAULT: "
195 #define	BAM_OLD_RC_DEF	"BOOTADM RC SAVED DEFAULT: "
196 
197 /* Title used for failsafe entries */
198 #define	FAILSAFE_TITLE	"Solaris failsafe"
199 
200 /* Title used for hv entries */
201 #define	NEW_HV_ENTRY	"Solaris xVM"
202 
203 /* ZFS boot option */
204 #define	ZFS_BOOT	"-B $ZFS-BOOTFS"
205 
206 /* multiboot */
207 #define	MULTI_BOOT	"/platform/i86pc/multiboot"
208 #define	MULTI_BOOT_FAILSAFE	"/boot/multiboot"
209 #define	MULTI_BOOT_FAILSAFE_UNIX	"kernel/unix"
210 #define	MULTI_BOOT_FAILSAFE_LINE	"/boot/multiboot kernel/unix -s"
211 
212 /* directboot kernels */
213 #define	DIRECT_BOOT_32	"/platform/i86pc/kernel/unix"
214 #define	DIRECT_BOOT_64	"/platform/i86pc/kernel/amd64/unix"
215 #define	DIRECT_BOOT_KERNEL	"/platform/i86pc/kernel/$ISADIR/unix"
216 #define	DIRECT_BOOT_FAILSAFE_KERNEL	"/boot/platform/i86pc/kernel/unix"
217 #define	DIRECT_BOOT_FAILSAFE_LINE	DIRECT_BOOT_FAILSAFE_KERNEL " -s"
218 #define	DIRECT_BOOT_KERNEL_ZFS	DIRECT_BOOT_KERNEL " " ZFS_BOOT
219 #define	DIRECT_BOOT_FAILSAFE_LINE_ZFS	DIRECT_BOOT_FAILSAFE_LINE " " ZFS_BOOT
220 
221 /* xVM kernels */
222 #define	XEN_KERNEL_SUBSTR "xen.gz"
223 
224 /* Boot archives */
225 #define	SUN4U_ARCHIVE		"/platform/sun4u/boot_archive"
226 #define	SUN4V_ARCHIVE		"/platform/sun4v/boot_archive"
227 #define	DIRECT_BOOT_ARCHIVE	"/platform/i86pc/$ISADIR/boot_archive"
228 #define	DIRECT_BOOT_ARCHIVE_32	"/platform/i86pc/boot_archive"
229 #define	DIRECT_BOOT_ARCHIVE_64	"/platform/i86pc/amd64/boot_archive"
230 #define	MULTIBOOT_ARCHIVE	DIRECT_BOOT_ARCHIVE_32
231 #define	FAILSAFE_ARCHIVE	"/boot/x86.miniroot-safe"
232 
233 /* Hypervisors */
234 #define	XEN_32			"/boot/xen.gz"
235 #define	XEN_64			"/boot/amd64/xen.gz"
236 #define	XEN_MENU		"/boot/$ISADIR/xen.gz"
237 #define	HYPERVISOR_KERNEL	"/platform/i86xpv/kernel/$ISADIR/unix"
238 #define	XEN_KERNEL_MODULE_LINE	HYPERVISOR_KERNEL " " HYPERVISOR_KERNEL
239 #define	XEN_KERNEL_MODULE_LINE_ZFS	\
240 	HYPERVISOR_KERNEL " " HYPERVISOR_KERNEL " " ZFS_BOOT
241 
242 /* A first guess at the number of entries in a menu */
243 #define	BAM_ENTRY_NUM		10
244 
245 /*
246  * Debugging defines
247  */
248 #define	INJECT_ERROR1(x, y)	\
249 { \
250 	if (bam_debug) { \
251 		char *inj = getenv("_BOOTADM_INJECT"); \
252 		if (inj && strcmp(inj, (x)) == 0) {  \
253 			y;	\
254 		} \
255 	} \
256 }
257 
258 #define	INJECT_ERROR2(x, y, z)	\
259 { \
260 	if (bam_debug) { \
261 		char *inj = getenv("_BOOTADM_INJECT"); \
262 		if (inj && strcmp(inj, (x)) == 0) {  \
263 			y;	\
264 			z;	\
265 		} \
266 	} \
267 }
268 
269 #define	BAM_DPRINTF(x)	{if (bam_debug)  bam_derror x; }
270 
271 #ifdef __cplusplus
272 }
273 #endif
274 
275 #endif	/* _BOOTADM_H */
276