linux_util.c (501ce3056105e2d2b8063e96010fcdf993043a81) linux_util.c (060e48824720626ae71cbff2328ec91f4aab1839)
1/*-
2 * Copyright (c) 1994 Christos Zoulas
3 * Copyright (c) 1995 Frank van der Linden
4 * Copyright (c) 1995 Scott Bartram
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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28 *
29 * from: svr4_util.c,v 1.5 1995/01/22 23:44:50 christos Exp
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <sys/param.h>
1/*-
2 * Copyright (c) 1994 Christos Zoulas
3 * Copyright (c) 1995 Frank van der Linden
4 * Copyright (c) 1995 Scott Bartram
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

--- 19 unchanged lines hidden (view full) ---

28 *
29 * from: svr4_util.c,v 1.5 1995/01/22 23:44:50 christos Exp
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <sys/param.h>
36#include <sys/bus.h>
36#include <sys/lock.h>
37#include <sys/malloc.h>
37#include <sys/lock.h>
38#include <sys/malloc.h>
39#include <sys/linker_set.h>
38#include <sys/mutex.h>
39#include <sys/namei.h>
40#include <sys/proc.h>
41#include <sys/syscallsubr.h>
42#include <sys/systm.h>
43#include <sys/vnode.h>
44
45#include <machine/stdarg.h>

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77
78 p = td->td_proc;
79 printf("linux: pid %d (%s): ", (int)p->p_pid, p->p_comm);
80 va_start(ap, fmt);
81 vprintf(fmt, ap);
82 va_end(ap);
83 printf("\n");
84}
40#include <sys/mutex.h>
41#include <sys/namei.h>
42#include <sys/proc.h>
43#include <sys/syscallsubr.h>
44#include <sys/systm.h>
45#include <sys/vnode.h>
46
47#include <machine/stdarg.h>

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79
80 p = td->td_proc;
81 printf("linux: pid %d (%s): ", (int)p->p_pid, p->p_comm);
82 va_start(ap, fmt);
83 vprintf(fmt, ap);
84 va_end(ap);
85 printf("\n");
86}
87
88MALLOC_DECLARE(M_LINUX);
89
90struct device_element
91{
92 TAILQ_ENTRY(device_element) list;
93 struct linux_device_handler entry;
94};
95
96static TAILQ_HEAD(, device_element) devices =
97 TAILQ_HEAD_INITIALIZER(devices);
98
99static struct linux_device_handler null_handler =
100 { "mem", "mem", "null", "null", 1, 3, 1};
101
102DATA_SET(linux_device_handler_set, null_handler);
103
104char *
105linux_driver_get_name_dev(device_t dev)
106{
107 struct device_element *de;
108 const char *device_name = device_get_name(dev);
109
110 if (device_name == NULL)
111 return NULL;
112 TAILQ_FOREACH(de, &devices, list) {
113 if (strcmp(device_name, de->entry.bsd_driver_name) == 0)
114 return (de->entry.linux_driver_name);
115 }
116
117 return NULL;
118}
119
120int
121linux_driver_get_major_minor(char *node, int *major, int *minor)
122{
123 struct device_element *de;
124
125 if (node == NULL || major == NULL || minor == NULL)
126 return 1;
127 TAILQ_FOREACH(de, &devices, list) {
128 if (strcmp(node, de->entry.bsd_device_name) == 0) {
129 *major = de->entry.linux_major;
130 *minor = de->entry.linux_minor;
131 return 0;
132 }
133 }
134
135 return 1;
136}
137
138char *
139linux_get_char_devices()
140{
141 struct device_element *de;
142 char *temp, *string, *last;
143 char formated[256];
144 int current_size = 0, string_size = 1024;
145
146 MALLOC(string, char *, string_size, M_LINUX, M_WAITOK);
147 string[0] = '\000';
148 last = "";
149 TAILQ_FOREACH(de, &devices, list) {
150 if (!de->entry.linux_char_device)
151 continue;
152 temp = string;
153 if (strcmp(last, de->entry.bsd_driver_name) != 0) {
154 last = de->entry.bsd_driver_name;
155
156 snprintf(formated, sizeof(formated), "%3d %s\n",
157 de->entry.linux_major,
158 de->entry.linux_device_name);
159 if (strlen(formated) + current_size
160 >= string_size) {
161 string_size *= 2;
162 MALLOC(string, char *, string_size,
163 M_LINUX, M_WAITOK);
164 bcopy(temp, string, current_size);
165 FREE(temp, M_LINUX);
166 }
167 strcat(string, formated);
168 current_size = strlen(string);
169 }
170 }
171
172 return string;
173}
174
175void
176linux_free_get_char_devices(char *string)
177{
178 FREE(string, M_LINUX);
179}
180
181static int linux_major_starting = 200;
182
183int
184linux_device_register_handler(struct linux_device_handler *d)
185{
186 struct device_element *de;
187
188 if (d == NULL)
189 return (EINVAL);
190
191 MALLOC(de, struct device_element *, sizeof(*de),
192 M_LINUX, M_WAITOK);
193 if (d->linux_major < 0) {
194 d->linux_major = linux_major_starting++;
195 }
196 bcopy(d, &de->entry, sizeof(*d));
197
198 /* Add the element to the list, sorted on span. */
199 TAILQ_INSERT_TAIL(&devices, de, list);
200
201 return (0);
202}
203
204int
205linux_device_unregister_handler(struct linux_device_handler *d)
206{
207 struct device_element *de;
208
209 if (d == NULL)
210 return (EINVAL);
211
212 TAILQ_FOREACH(de, &devices, list) {
213 if (bcmp(d, &de->entry, sizeof(*d)) == 0) {
214 TAILQ_REMOVE(&devices, de, list);
215 FREE(de, M_LINUX);
216 return (0);
217 }
218 }
219
220 return (EINVAL);
221}