1 /*-
2  * Copyright (c) 2013 Nathan Whitehorn
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include <sys/param.h>
30 #include <errno.h>
31 #include <libutil.h>
32 #include <inttypes.h>
33 
34 #include <libgeom.h>
35 #include <dialog.h>
36 #include <dlg_keys.h>
37 
38 #include "partedit.h"
39 
40 static struct gprovider *
41 provider_for_name(struct gmesh *mesh, const char *name)
42 {
43 	struct gclass *classp;
44 	struct gprovider *pp = NULL;
45 	struct ggeom *gp;
46 
47 	LIST_FOREACH(classp, &mesh->lg_class, lg_class) {
48 		if (strcmp(classp->lg_name, "DISK") != 0 &&
49 		    strcmp(classp->lg_name, "PART") != 0 &&
50 		    strcmp(classp->lg_name, "RAID") != 0 &&
51 		    strcmp(classp->lg_name, "MD") != 0)
52 			continue;
53 
54 		LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
55 			if (LIST_EMPTY(&gp->lg_provider))
56 				continue;
57 
58 			LIST_FOREACH(pp, &gp->lg_provider, lg_provider)
59 				if (strcmp(pp->lg_name, name) == 0)
60 					break;
61 
62 			if (pp != NULL) break;
63 		}
64 
65 		if (pp != NULL) break;
66 	}
67 
68 	return (pp);
69 }
70 
71 static int
72 part_config(char *disk, const char *scheme, char *config)
73 {
74 	char *partition, *ap, *size = NULL, *type = NULL, *mount = NULL;
75 	struct gclass *classp;
76 	struct gmesh mesh;
77 	struct ggeom *gpart = NULL;
78 	int error;
79 
80 	if (scheme == NULL)
81 		scheme = default_scheme();
82 
83 	error = geom_gettree(&mesh);
84 
85 	/* Remove any existing partitioning and create new scheme */
86 	LIST_FOREACH(classp, &mesh.lg_class, lg_class)
87 		if (strcmp(classp->lg_name, "PART") == 0)
88 			break;
89         if (classp != NULL) {
90 		LIST_FOREACH(gpart, &classp->lg_geom, lg_geom)
91 		if (strcmp(gpart->lg_name, disk) == 0)
92 			break;
93 	}
94 	if (gpart != NULL)
95 		gpart_destroy(gpart);
96 	gpart_partition(disk, scheme);
97 
98 	if (strcmp(scheme, "PC98") == 0 || strcmp(scheme, "MBR") == 0) {
99 		struct gmesh submesh;
100 		geom_gettree(&submesh);
101 		gpart_create(provider_for_name(&submesh, disk),
102 		    "freebsd", NULL, NULL, &disk, 0);
103 		geom_deletetree(&submesh);
104 	} else {
105 		disk= strdup(disk);
106 	}
107 
108 	geom_deletetree(&mesh);
109 	error = geom_gettree(&mesh);
110 
111 	/* Create partitions */
112 	while ((partition = strsep(&config, ",")) != NULL) {
113 		while ((ap = strsep(&partition, " \t\n")) != NULL) {
114 			if (*ap == '\0')
115 				continue;
116 			if (size == NULL)
117 				size = ap;
118 			else if (type == NULL)
119 				type = ap;
120 			else if (mount == NULL)
121 				mount = ap;
122 		}
123 		if (size == NULL)
124 			continue;
125 		if (strcmp(size, "auto") == 0)
126 			size = NULL;
127 		gpart_create(provider_for_name(&mesh, disk), type, size, mount,
128 		    NULL, 0);
129 		geom_deletetree(&mesh);
130 		error = geom_gettree(&mesh);
131 		size = type = mount = NULL;
132 	}
133 
134 	geom_deletetree(&mesh);
135 	free(disk);
136 
137 	return (0);
138 }
139 
140 static
141 int parse_disk_config(char *input)
142 {
143 	char *ap;
144 	char *disk = NULL, *scheme = NULL, *partconfig = NULL;
145 
146 	while (input != NULL && *input != 0) {
147 		if (isspace(*input)) {
148 			input++;
149 			continue;
150 		}
151 
152 		switch(*input) {
153 		case '{':
154 			input++;
155 			partconfig = strchr(input, '}');
156 			if (partconfig == NULL) {
157 				fprintf(stderr, "Malformed partition setup "
158 				    "string: %s\n", input);
159 				return (1);
160 			}
161 			*partconfig = '\0';
162 			ap = partconfig+1;
163 			partconfig = input;
164 			input = ap;
165 			break;
166 		default:
167 			if (disk == NULL)
168 				disk = strsep(&input, " \t\n");
169 			else if (scheme == NULL)
170 				scheme = strsep(&input, " \t\n");
171 			else {
172 				fprintf(stderr, "Unknown directive: %s\n",
173 				    strsep(&input, " \t\n"));
174 				return (1);
175 			}
176 		}
177 	} while (input != NULL && *input != 0);
178 
179 	if (disk != NULL)
180 		part_config(disk, scheme, partconfig);
181 
182 	return (0);
183 }
184 
185 int
186 scripted_editor(int argc, const char **argv)
187 {
188 	char *token;
189 	int i, len = 0;
190 
191 	for (i = 1; i < argc; i++)
192 		len += strlen(argv[i]) + 1;
193 	char inputbuf[len], *input = inputbuf;
194 	strcpy(input, argv[1]);
195 	for (i = 2; i < argc; i++) {
196 		strcat(input, " ");
197 		strcat(input, argv[i]);
198 	}
199 
200 	while ((token = strsep(&input, ";")) != NULL)
201 		parse_disk_config(token);
202 
203 	return (0);
204 }
205 
206