X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev.h;h=8752f595d6699e7862d8a9b1b80e52dc951b5b8b;hp=56eb0d7edb0dec816d6e32a3855b01fcc4326bca;hb=49f9acf3844aa5c004b5794e919bd54166e53227;hpb=19dc5d4ce15ad387031ec4e78dc615a9eb07dc08 diff --git a/udev.h b/udev.h index 56eb0d7ed..8752f595d 100644 --- a/udev.h +++ b/udev.h @@ -23,46 +23,142 @@ #ifndef UDEV_H #define UDEV_H +#include +#include +#include +#include +#include -#ifdef DEBUG -#include -#define dbg(format, arg...) \ - do { \ - log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg); \ - } while (0) -#else - #define dbg(format, arg...) do { } while (0) -#endif - - -/* Lots of constants that should be in a config file sometime */ - -/* Location of sysfs mount */ -#define SYSFS_ROOT "/sys" - -/* Where udev should create its device nodes, trailing / needed */ -#define UDEV_ROOT "/udev/" - -/* device file in sysfs that contains major/minor number, leading / needed */ -#define DEV_FILE "/dev" - -/* Binaries that udev calls to do stuff */ -#define MKNOD "/bin/mknod" - -extern int log_message (int level, const char *format, ...) - __attribute__ ((format (printf, 2, 3))); +#define COMMENT_CHARACTER '#' #define NAME_SIZE 100 #define OWNER_SIZE 30 #define GROUP_SIZE 30 +#define MODE_SIZE 8 -struct device_attr { +#define ACTION_SIZE 30 +#define DEVPATH_SIZE 255 +#define SUBSYSTEM_SIZE 30 + +/* length of public data */ +#define UDEVICE_LEN (offsetof(struct udevice, bus_id)) + +struct udevice { char name[NAME_SIZE]; char owner[OWNER_SIZE]; char group[GROUP_SIZE]; - int mode; + char type; + int major; + int minor; + unsigned int mode; /* not mode_t due to conflicting definitions in different libcs */ + char symlink[NAME_SIZE]; + int partitions; + + /* private data that help us in building strings */ + char bus_id[SYSFS_NAME_LEN]; + char program_result[NAME_SIZE]; + char kernel_number[NAME_SIZE]; + char kernel_name[NAME_SIZE]; }; +#define strfieldcpy(to, from) \ +do { \ + to[sizeof(to)-1] = '\0'; \ + strncpy(to, from, sizeof(to)-1); \ +} while (0) -#endif +#define strfieldcat(to, from) \ +do { \ + to[sizeof(to)-1] = '\0'; \ + strncat(to, from, sizeof(to) - strlen(to)-1); \ +} while (0) + +#define strfieldcpymax(to, from, maxsize) \ +do { \ + to[maxsize-1] = '\0'; \ + strncpy(to, from, maxsize-1); \ +} while (0) + +#define strfieldcatmax(to, from, maxsize) \ +do { \ + to[maxsize-1] = '\0'; \ + strncat(to, from, maxsize - strlen(to)-1); \ +} while (0) + +#define strintcat(to, i) \ +do { \ + to[sizeof(to)-1] = '\0'; \ + snprintf((to) + strlen(to), sizeof(to) - strlen(to)-1, "%u", i); \ +} while (0) + +#define strintcatmax(to, i, maxsize) \ +do { \ + to[maxsize-1] = '\0'; \ + snprintf((to) + strlen(to), maxsize - strlen(to)-1, "%u", i); \ +} while (0) +#define foreach_strpart(str, separator, pos, len) \ + for(pos = str, len = 0; \ + (pos) < ((str) + strlen(str)); \ + pos = pos + len + strspn(pos, separator), len = strcspn(pos, separator)) \ + if (len > 0) + +static inline char *get_action(void) +{ + char *action; + + action = getenv("ACTION"); + if (action != NULL && strlen(action) > ACTION_SIZE) + action[ACTION_SIZE-1] = '\0'; + + return action; +} + +static inline char *get_devpath(void) +{ + char *devpath; + + devpath = getenv("DEVPATH"); + if (devpath != NULL && strlen(devpath) > DEVPATH_SIZE) + devpath[DEVPATH_SIZE-1] = '\0'; + + return devpath; +} + +static inline char *get_seqnum(void) +{ + char *seqnum; + + seqnum = getenv("SEQNUM"); + + return seqnum; +} + +static inline char *get_subsystem(char *subsystem) +{ + if (subsystem != NULL && strlen(subsystem) > SUBSYSTEM_SIZE) + subsystem[SUBSYSTEM_SIZE-1] = '\0'; + + return subsystem; +} + +extern int udev_add_device(char *path, char *subsystem, int fake); +extern int udev_remove_device(char *path, char *subsystem); +extern void udev_init_config(void); +extern int parse_get_pair(char **orig_string, char **left, char **right); + +extern char **main_argv; +extern char **main_envp; +extern char sysfs_path[SYSFS_PATH_MAX]; +extern char udev_root[PATH_MAX]; +extern char udev_db_filename[PATH_MAX+NAME_MAX]; +extern char udev_permissions_filename[PATH_MAX+NAME_MAX]; +extern char udev_config_filename[PATH_MAX+NAME_MAX]; +extern char udev_rules_filename[PATH_MAX+NAME_MAX]; +extern char default_mode_str[MODE_SIZE]; +extern char default_owner_str[OWNER_SIZE]; +extern char default_group_str[GROUP_SIZE]; +extern int udev_log; +extern int udev_sleep; + +#endif