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Commit | Line | Data |
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f0083e3d GKH |
1 | /* |
2 | * udev.h | |
3 | * | |
4 | * Userspace devfs | |
5 | * | |
6 | * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation version 2 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | */ | |
22 | ||
23 | #ifndef UDEV_H | |
24 | #define UDEV_H | |
25 | ||
e964c2c0 KS |
26 | #include <stdlib.h> |
27 | #include <string.h> | |
0bad3406 | 28 | #include <sysfs/libsysfs.h> |
00866ed2 | 29 | #include <stddef.h> |
c076a2bd | 30 | #include <sys/param.h> |
f0083e3d | 31 | |
e8baccca | 32 | #define COMMENT_CHARACTER '#' |
6739707d | 33 | |
185a35a4 GKH |
34 | #define NAME_SIZE 100 |
35 | #define OWNER_SIZE 30 | |
36 | #define GROUP_SIZE 30 | |
765cbd97 | 37 | #define MODE_SIZE 8 |
185a35a4 | 38 | |
e964c2c0 KS |
39 | #define ACTION_SIZE 30 |
40 | #define DEVPATH_SIZE 255 | |
41 | #define SUBSYSTEM_SIZE 30 | |
42 | ||
00866ed2 KS |
43 | /* length of public data */ |
44 | #define UDEVICE_LEN (offsetof(struct udevice, bus_id)) | |
45 | ||
5840bc63 GKH |
46 | struct udevice { |
47 | char name[NAME_SIZE]; | |
48 | char owner[OWNER_SIZE]; | |
49 | char group[GROUP_SIZE]; | |
50 | char type; | |
51 | int major; | |
52 | int minor; | |
d45ea2b7 | 53 | unsigned int mode; /* not mode_t due to conflicting definitions in different libcs */ |
3d150dfb | 54 | char symlink[NAME_SIZE]; |
50e5de03 | 55 | int partitions; |
f3b04a2e | 56 | |
00866ed2 KS |
57 | /* private data that help us in building strings */ |
58 | char bus_id[SYSFS_NAME_LEN]; | |
59 | char program_result[NAME_SIZE]; | |
60 | char kernel_number[NAME_SIZE]; | |
61 | char kernel_name[NAME_SIZE]; | |
5840bc63 GKH |
62 | }; |
63 | ||
70033702 AB |
64 | #define strfieldcpy(to, from) \ |
65 | do { \ | |
66 | to[sizeof(to)-1] = '\0'; \ | |
67 | strncpy(to, from, sizeof(to)-1); \ | |
68 | } while (0) | |
69 | ||
c472e3c8 KS |
70 | #define strfieldcat(to, from) \ |
71 | do { \ | |
72 | to[sizeof(to)-1] = '\0'; \ | |
831f800d KS |
73 | strncat(to, from, sizeof(to) - strlen(to)-1); \ |
74 | } while (0) | |
75 | ||
76 | #define strnfieldcpy(to, from, maxsize) \ | |
77 | do { \ | |
78 | to[maxsize-1] = '\0'; \ | |
79 | strncpy(to, from, maxsize-1); \ | |
80 | } while (0) | |
81 | ||
82 | #define strnfieldcat(to, from, maxsize) \ | |
83 | do { \ | |
84 | to[maxsize-1] = '\0'; \ | |
85 | strncat(to, from, maxsize - strlen(to)-1); \ | |
c472e3c8 KS |
86 | } while (0) |
87 | ||
e964c2c0 KS |
88 | static inline char *get_action(void) |
89 | { | |
90 | char *action; | |
91 | ||
92 | action = getenv("ACTION"); | |
3fe07342 | 93 | if (action != NULL && strlen(action) > ACTION_SIZE) |
e964c2c0 KS |
94 | action[ACTION_SIZE-1] = '\0'; |
95 | ||
96 | return action; | |
97 | } | |
98 | ||
99 | static inline char *get_devpath(void) | |
100 | { | |
101 | char *devpath; | |
102 | ||
103 | devpath = getenv("DEVPATH"); | |
3fe07342 | 104 | if (devpath != NULL && strlen(devpath) > DEVPATH_SIZE) |
e964c2c0 KS |
105 | devpath[DEVPATH_SIZE-1] = '\0'; |
106 | ||
107 | return devpath; | |
108 | } | |
109 | ||
110 | static inline char *get_seqnum(void) | |
111 | { | |
112 | char *seqnum; | |
113 | ||
114 | seqnum = getenv("SEQNUM"); | |
115 | ||
116 | return seqnum; | |
117 | } | |
118 | ||
119 | static inline char *get_subsystem(char *subsystem) | |
120 | { | |
3fe07342 | 121 | if (subsystem != NULL && strlen(subsystem) > SUBSYSTEM_SIZE) |
e964c2c0 KS |
122 | subsystem[SUBSYSTEM_SIZE-1] = '\0'; |
123 | ||
124 | return subsystem; | |
125 | } | |
126 | ||
eb10f97f | 127 | extern int udev_add_device(char *path, char *subsystem, int fake); |
5840bc63 | 128 | extern int udev_remove_device(char *path, char *subsystem); |
e8baccca | 129 | extern void udev_init_config(void); |
274812b5 | 130 | extern int parse_get_pair(char **orig_string, char **left, char **right); |
a507a015 | 131 | |
c27e6911 PM |
132 | extern char **main_argv; |
133 | extern char **main_envp; | |
c056c514 | 134 | extern char sysfs_path[SYSFS_PATH_MAX]; |
e8baccca | 135 | extern char udev_root[PATH_MAX]; |
c056c514 | 136 | extern char udev_db_filename[PATH_MAX+NAME_MAX]; |
3836a3c4 | 137 | extern char udev_permissions_filename[PATH_MAX+NAME_MAX]; |
c056c514 | 138 | extern char udev_config_filename[PATH_MAX+NAME_MAX]; |
e8baccca | 139 | extern char udev_rules_filename[PATH_MAX+NAME_MAX]; |
765cbd97 | 140 | extern char default_mode_str[MODE_SIZE]; |
74c73ef9 | 141 | extern char default_owner_str[OWNER_SIZE]; |
142 | extern char default_group_str[GROUP_SIZE]; | |
51a8bb2f | 143 | extern int udev_log; |
961e4784 | 144 | extern int udev_sleep; |
c056c514 | 145 | |
f0083e3d | 146 | #endif |