2 * $NetBSD: usbd.c,v 1.4 1998/12/09 00:57:19 augustss Exp $
3 * $FreeBSD: src/usr.sbin/usbd/usbd.c,v 1.29 2003/10/25 22:03:10 jmg Exp $
7 * Copyright (c) 1998 The NetBSD Foundation, Inc.
10 * This code is derived from software contributed to The NetBSD Foundation
11 * by Lennart Augustsson (augustss@netbsd.org).
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the NetBSD
24 * Foundation, Inc. and its contributors.
25 * 4. Neither the name of The NetBSD Foundation nor the names of its
26 * contributors may be used to endorse or promote products derived
27 * from this software without specific prior written permission.
29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
42 /* USBD creates 'threads' in the kernel, used for doing discovery when a
43 * device has attached or detached. This functionality should be removed
44 * once kernel threads have been added to the kernel.
45 * It also handles the event queue, and executing commands based on those
59 #include <sys/param.h>
60 #include <sys/types.h>
61 #include <sys/errno.h>
62 #include <sys/ioctl.h>
63 #include <sys/linker.h>
64 #include <sys/module.h>
65 #include <sys/queue.h>
70 #include <bus/usb/usb.h>
72 /* default name of configuration file
75 #define CONFIGFILE "/etc/usbd.conf"
77 /* the name of the device spitting out usb attach/detach events as well as
78 * the prefix for the individual busses (used as a semi kernel thread).
80 #define USBDEV "/dev/usb"
82 /* Maximum number of USB busses expected to be in a system
83 * XXX should be replaced by dynamic allocation.
87 /* Sometimes a device does not respond in time for interrupt
88 * driven explore to find it. Therefore we run an exploration
89 * at regular intervals to catch those.
93 /* The wildcard used in actions for strings and integers
95 #define WILDCARD_STRING NULL
96 #define WILDCARD_INT -1
99 extern char *__progname
; /* name of program */
101 const char *configfile
= CONFIGFILE
; /* name of configuration file */
103 char *devs
[MAXUSBDEV
]; /* device names */
104 int fds
[MAXUSBDEV
]; /* file descriptors for USBDEV\d+ */
105 int ndevs
= 0; /* number of entries in fds / devs */
106 int fd
= -1; /* file descriptor for USBDEV */
109 int verbose
= 0; /* print message on what it is doing */
111 typedef struct event_name_s
{
112 int type
; /* event number (from usb.h) */
116 event_name_t event_names
[] = {
117 {USB_EVENT_CTRLR_ATTACH
, "ctrlr-attach"},
118 {USB_EVENT_CTRLR_DETACH
, "ctrlr-detach"},
119 {USB_EVENT_DRIVER_ATTACH
, "driver-attach"},
120 {USB_EVENT_DRIVER_DETACH
, "driver-detach"},
121 {USB_EVENT_DEVICE_ATTACH
, "device-attach"},
122 {USB_EVENT_DEVICE_DETACH
, "device-detach"},
123 {0, NULL
} /* NULL indicates end of list, not 0 */
126 #define DEVICE_FIELD 0 /* descriptive field */
128 #define VENDOR_FIELD 1 /* selective fields */
129 #define PRODUCT_FIELD 2
130 #define RELEASE_FIELD 3
131 #define CLASS_FIELD 4
132 #define SUBCLASS_FIELD 5
133 #define PROTOCOL_FIELD 6
134 #define DEVNAME_FIELD 7
136 #define ATTACH_FIELD 8 /* command fields */
137 #define DETACH_FIELD 9
140 typedef struct action_s
{
141 char *name
; /* descriptive string */
143 int vendor
; /* selection criteria */
150 regex_t devname_regex
;
152 char *attach
; /* commands to execute */
155 STAILQ_ENTRY(action_s
) next
;
158 STAILQ_HEAD(action_list
, action_s
) actions
= STAILQ_HEAD_INITIALIZER(actions
);
160 typedef struct action_match_s
{
166 /* the function returns 0 for failure, 1 for all arguments found and 2 for
167 * arguments left over in trail.
169 typedef int (*config_field_fn
)(action_t
*action
, char *args
, char **trail
);
171 static void execute_command(char *);
172 static int find_action(struct usb_device_info
*, action_match_t
*);
173 static int get_integer(char *, int *, char **);
174 static int get_string(char *, char **, char **);
175 static int match_devname(action_t
*, struct usb_device_info
*);
176 static void print_action(action_t
*, int);
177 static void print_actions(void);
178 static void print_event(struct usb_event
*);
179 static void process_event_queue(int);
180 static void read_configuration(void);
181 static int set_attach_field(action_t
*, char *, char **);
182 static int set_class_field(action_t
*, char *, char **);
183 static int set_detach_field(action_t
*, char *, char **);
184 static int set_device_field(action_t
*, char *, char **);
185 static int set_devname_field(action_t
*, char *, char **);
186 static int set_product_field(action_t
*, char *, char **);
187 static int set_protocol_field(action_t
*, char *, char **);
188 static int set_release_field(action_t
*, char *, char **);
189 static int set_subclass_field(action_t
*, char *, char **);
190 static int set_vendor_field(action_t
*, char *, char **);
191 static void usage(void);
194 /* the list of fields supported in an entry */
195 typedef struct config_field_s
{
198 config_field_fn function
;
201 config_field_t config_fields
[] = {
202 {DEVICE_FIELD
, "device", set_device_field
},
204 {VENDOR_FIELD
, "vendor", set_vendor_field
},
205 {PRODUCT_FIELD
, "product", set_product_field
},
206 {RELEASE_FIELD
, "release", set_release_field
},
207 {CLASS_FIELD
, "class", set_class_field
},
208 {SUBCLASS_FIELD
, "subclass", set_subclass_field
},
209 {PROTOCOL_FIELD
, "protocol", set_protocol_field
},
210 {DEVNAME_FIELD
, "devname", set_devname_field
},
212 {ATTACH_FIELD
, "attach", set_attach_field
},
213 {DETACH_FIELD
, "detach", set_detach_field
},
215 {0, NULL
, NULL
} /* NULL is EOL marker, not the 0 */
221 fprintf(stderr
, "usage: %s [-d] [-v] [-t timeout] [-e] [-f dev]\n"
222 " [-n] [-c config]\n",
228 /* generic helper functions for the functions to set the fields of actions */
230 get_string(char *src
, char **rdst
, char **rsrc
)
232 /* Takes the first string from src, taking quoting into account.
233 * rsrc (if not NULL) is set to the first byte not included in the
234 * string returned in rdst.
237 * src = 'fir"st \'par"t second part';
239 * *dst = 'hello \'world';
241 * *rsrc = 'second part';
243 * Notice the fact that the single quote enclosed in double quotes is
244 * returned. Also notice that before second part there is more than
245 * one space, which is removed in rsrc.
247 * The string in src is not modified.
250 char *dst
; /* destination string */
251 size_t i
; /* index into src */
252 int j
; /* index into dst */
253 int quoted
= 0; /* 1 for single, 2 for double quoted */
255 dst
= malloc(strlen(src
)+1); /* XXX allocation is too big, realloc?*/
256 if (dst
== NULL
) { /* should not happen, really */
257 fprintf(stderr
, "%s:%d: Out of memory\n", configfile
, lineno
);
261 /* find the end of the current string. If quotes are found the search
262 * continues until the corresponding quote is found.
265 * represents the string
267 * and not (hello world).
269 for (i
= 0, j
= 0; i
< strlen(src
); i
++) {
270 if (src
[i
] == '\'' && (quoted
== 0 || quoted
== 1)) {
271 quoted
= (quoted
? 0:1);
272 } else if (src
[i
] == '"' && (quoted
== 0 || quoted
== 2)) {
273 quoted
= (quoted
? 0:2);
274 } else if (isspace(src
[i
]) && !quoted
) {
275 /* found a space outside quotes -> terminates src */
278 dst
[j
++] = src
[i
]; /* copy character */
282 /* quotes being left open? */
284 fprintf(stderr
, "%s:%d: Missing %s quote at end of '%s'\n",
286 (quoted
== 1? "single":"double"), src
);
290 /* skip whitespace for second part */
291 for (/*i is set*/; i
< strlen(src
) && isspace(src
[i
]); i
++)
294 dst
[j
] = '\0'; /* make sure it's NULL terminated */
296 *rdst
= dst
; /* and return the pointers */
297 if (rsrc
!= NULL
) /* if info wanted */
300 if (*dst
== '\0') { /* empty string */
302 } else if (src
[i
] == '\0') { /* completely used (1 argument) */
304 } else { /* 2 or more args, *rsrc is rest */
310 get_integer(char *src
, int *dst
, char **rsrc
)
314 /* Converts str to a number. If one argument was found in
315 * str, 1 is returned and *dst is set to the value of the integer.
316 * If 2 or more arguments were presented, 2 is returned,
317 * *dst is set to the converted value and rsrc, if not null, points
318 * at the start of the next argument (whitespace skipped).
319 * Else 0 is returned and nothing else is valid.
322 if (src
== NULL
|| *src
== '\0') /* empty src */
325 *dst
= (int) strtol(src
, &endptr
, 0);
327 /* skip over whitespace of second argument */
328 while (isspace(*endptr
))
334 if (isspace(*endptr
)) { /* partial match, 2 or more arguments */
336 } else if (*endptr
== '\0') { /* full match, 1 argument */
338 } else { /* invalid src, no match */
343 /* functions to set the fields of the actions appropriately */
345 set_device_field(action_t
*action
, char *args
, char **trail
)
347 return(get_string(args
, &action
->name
, trail
));
351 set_vendor_field(action_t
*action
, char *args
, char **trail
)
353 return(get_integer(args
, &action
->vendor
, trail
));
357 set_product_field(action_t
*action
, char *args
, char **trail
)
359 return(get_integer(args
, &action
->product
, trail
));
363 set_release_field(action_t
*action
, char *args
, char **trail
)
365 return(get_integer(args
, &action
->release
, trail
));
369 set_class_field(action_t
*action
, char *args
, char **trail
)
371 return(get_integer(args
, &action
->class, trail
));
375 set_subclass_field(action_t
*action
, char *args
, char **trail
)
377 return(get_integer(args
, &action
->subclass
, trail
));
381 set_protocol_field(action_t
*action
, char *args
, char **trail
)
383 return(get_integer(args
, &action
->protocol
, trail
));
387 set_devname_field(action_t
*action
, char *args
, char **trail
)
389 int match
= get_string(args
, &action
->devname
, trail
);
393 # define ERRSTR_SIZE 100
394 char errstr
[ERRSTR_SIZE
];
399 len
= strlen(action
->devname
);
400 string
= malloc(len
+ 15);
404 bcopy(action
->devname
, string
+7, len
); /* make some space for */
405 bcopy("[[:<:]]", string
, 7); /* beginning of word */
406 bcopy("[[:>:]]", string
+7+len
, 7); /* and end of word */
407 string
[len
+ 14] = '\0';
409 error
= regcomp(&action
->devname_regex
, string
, REG_NOSUB
|REG_EXTENDED
);
412 regerror(error
, &action
->devname_regex
, errstr
, ERRSTR_SIZE
);
413 fprintf(stderr
, "%s:%d: %s\n", configfile
, lineno
, errstr
);
421 set_attach_field(action_t
*action
, char *args
, char **trail
)
423 return(get_string(args
, &action
->attach
, trail
));
427 set_detach_field(action_t
*action
, char *args
, char **trail
)
429 return(get_string(args
, &action
->detach
, trail
));
433 read_configuration(void)
435 FILE *file
; /* file descriptor */
436 char *line
; /* current line */
437 char *linez
; /* current line, NULL terminated */
438 char *field
; /* first part, the field name */
439 char *args
; /* second part, arguments */
440 char *trail
; /* remaining part after parsing, should be '' */
441 size_t len
; /* length of current line */
442 int i
,j
; /* loop counters */
443 action_t
*action
= NULL
; /* current action */
445 file
= fopen(configfile
, "r");
447 fprintf(stderr
, "%s: Could not open for reading, %s\n",
448 configfile
, strerror(errno
));
452 for (lineno
= 1; /* nop */;lineno
++) {
454 line
= fgetln(file
, &len
);
456 if (feof(file
)) /* EOF */
459 fprintf(stderr
, "%s:%d: Could not read, %s\n",
460 configfile
, lineno
, strerror(errno
));
465 /* skip initial spaces */
466 while (len
> 0 && isspace(*line
)) {
471 if (len
== 0) /* empty line */
473 if (line
[0] == '#') /* comment line */
476 /* make a NULL terminated copy of the string */
477 linez
= malloc(len
+1);
479 fprintf(stderr
, "%s:%d: Out of memory\n",
483 strncpy(linez
, line
, len
);
486 /* find the end of the current word (is field), that's the
487 * start of the arguments
491 while (*args
!= '\0' && !isspace(*args
))
494 /* If arguments is not the empty string, NULL terminate the
495 * field and move the argument pointer to the first character
497 * If arguments is the empty string field and arguments both
498 * are terminated (strlen(field) >= 0, strlen(arguments) == 0).
505 /* Skip initial spaces */
506 while (*args
!= '\0' && isspace(*args
))
509 /* Cut off trailing whitespace */
510 for (i
= 0, j
= 0; args
[i
] != '\0'; i
++)
511 if (!isspace(args
[i
]))
515 /* We now have the field and the argument separated into
516 * two strings that are NULL terminated
519 /* If the field is 'device' we have to start a new action. */
520 if (strcmp(field
, "device") == 0) {
521 /* Allocate a new action and set defaults */
522 action
= malloc(sizeof(*action
));
523 if (action
== NULL
) {
524 fprintf(stderr
, "%s:%d: Out of memory\n",
528 memset(action
, 0, sizeof(*action
));
529 action
->product
= WILDCARD_INT
;
530 action
->vendor
= WILDCARD_INT
;
531 action
->release
= WILDCARD_INT
;
532 action
->class = WILDCARD_INT
;
533 action
->subclass
= WILDCARD_INT
;
534 action
->protocol
= WILDCARD_INT
;
535 action
->devname
= WILDCARD_STRING
;
537 /* Add it to the end of the list to preserve order */
538 STAILQ_INSERT_TAIL(&actions
, action
, next
);
541 if (action
== NULL
) {
542 line
[len
] = '\0'; /* XXX zero terminate */
543 fprintf(stderr
, "%s:%d: Doesn't start with 'device' "
544 "but '%s'\n", configfile
, lineno
, field
);
548 for (i
= 0; config_fields
[i
].name
; i
++) {
549 /* does the field name match? */
550 if (strcmp(config_fields
[i
].name
, field
) == 0) {
551 /* execute corresponding set-field function */
552 if ((config_fields
[i
].function
)(action
, args
,
555 fprintf(stderr
,"%s:%d: "
556 "Syntax error in '%s'\n",
557 configfile
, lineno
, linez
);
563 if (config_fields
[i
].name
== NULL
) { /* Reached end of list*/
564 fprintf(stderr
, "%s:%d: Unknown field '%s'\n",
565 configfile
, lineno
, field
);
578 print_event(struct usb_event
*event
)
581 struct timespec
*timespec
= &event
->ue_time
;
582 struct usb_device_info
*devinfo
= &event
->u
.ue_device
;
584 printf("%s: ", __progname
);
585 for (i
= 0; event_names
[i
].name
!= NULL
; i
++) {
586 if (event
->ue_type
== event_names
[i
].type
) {
587 printf("%s event", event_names
[i
].name
);
591 if (event_names
[i
].name
== NULL
)
592 printf("unknown event %d", event
->ue_type
);
594 if (event
->ue_type
== USB_EVENT_DEVICE_ATTACH
||
595 event
->ue_type
== USB_EVENT_DEVICE_DETACH
) {
596 devinfo
= &event
->u
.ue_device
;
598 printf(" at %ld.%09ld, %s, %s:\n",
599 timespec
->tv_sec
, timespec
->tv_nsec
,
600 devinfo
->udi_product
, devinfo
->udi_vendor
);
602 printf(" vndr=0x%04x prdct=0x%04x rlse=0x%04x "
603 "clss=0x%04x subclss=0x%04x prtcl=0x%04x\n",
604 devinfo
->udi_vendorNo
, devinfo
->udi_productNo
,
605 devinfo
->udi_releaseNo
,
606 devinfo
->udi_class
, devinfo
->udi_subclass
, devinfo
->udi_protocol
);
608 if (devinfo
->udi_devnames
[0][0] != '\0') {
611 printf(" device names:");
612 for (i
= 0; i
< USB_MAX_DEVNAMES
; i
++) {
613 if (devinfo
->udi_devnames
[i
][0] == '\0')
616 printf("%c%s", c
, devinfo
->udi_devnames
[i
]);
620 } else if (event
->ue_type
== USB_EVENT_CTRLR_ATTACH
||
621 event
->ue_type
== USB_EVENT_CTRLR_DETACH
) {
622 printf(" bus=%d", event
->u
.ue_ctrlr
.ue_bus
);
623 } else if (event
->ue_type
== USB_EVENT_DRIVER_ATTACH
||
624 event
->ue_type
== USB_EVENT_DRIVER_DETACH
) {
625 printf(" cookie=%u devname=%s",
626 event
->u
.ue_driver
.ue_cookie
.cookie
,
627 event
->u
.ue_driver
.ue_devname
);
633 print_action(action_t
*action
, int i
)
638 printf("%s: action %d: %s\n",
640 (action
->name
? action
->name
:""));
641 if (action
->product
!= WILDCARD_INT
||
642 action
->vendor
!= WILDCARD_INT
||
643 action
->release
!= WILDCARD_INT
||
644 action
->class != WILDCARD_INT
||
645 action
->subclass
!= WILDCARD_INT
||
646 action
->protocol
!= WILDCARD_INT
)
648 if (action
->vendor
!= WILDCARD_INT
)
649 printf(" vndr=0x%04x", action
->vendor
);
650 if (action
->product
!= WILDCARD_INT
)
651 printf(" prdct=0x%04x", action
->product
);
652 if (action
->release
!= WILDCARD_INT
)
653 printf(" rlse=0x%04x", action
->release
);
654 if (action
->class != WILDCARD_INT
)
655 printf(" clss=0x%04x", action
->class);
656 if (action
->subclass
!= WILDCARD_INT
)
657 printf(" subclss=0x%04x", action
->subclass
);
658 if (action
->protocol
!= WILDCARD_INT
)
659 printf(" prtcl=0x%04x", action
->protocol
);
660 if (action
->vendor
!= WILDCARD_INT
||
661 action
->product
!= WILDCARD_INT
||
662 action
->release
!= WILDCARD_INT
||
663 action
->class != WILDCARD_INT
||
664 action
->subclass
!= WILDCARD_INT
||
665 action
->protocol
!= WILDCARD_INT
)
667 if (action
->devname
!= WILDCARD_STRING
)
668 printf(" devname: %s\n", action
->devname
);
670 if (action
->attach
!= NULL
)
671 printf(" attach='%s'\n",
673 if (action
->detach
!= NULL
)
674 printf(" detach='%s'\n",
684 STAILQ_FOREACH(action
, &actions
, next
)
685 print_action(action
, ++i
);
687 printf("%s: %d action%s\n", __progname
, i
, (i
== 1? "":"s"));
692 match_devname(action_t
*action
, struct usb_device_info
*devinfo
)
698 for (i
= 0; i
< USB_MAX_DEVNAMES
; i
++) {
699 if (devinfo
->udi_devnames
[i
][0] == '\0')
702 error
= regexec(&action
->devname_regex
, devinfo
->udi_devnames
[i
],
706 printf("%s: %s matches %s\n", __progname
,
707 devinfo
->udi_devnames
[i
], action
->devname
);
717 find_action(struct usb_device_info
*devinfo
, action_match_t
*action_match
)
720 char *_devname
= NULL
;
723 STAILQ_FOREACH(action
, &actions
, next
) {
724 if ((action
->vendor
== WILDCARD_INT
||
725 action
->vendor
== devinfo
->udi_vendorNo
) &&
726 (action
->product
== WILDCARD_INT
||
727 action
->product
== devinfo
->udi_productNo
) &&
728 (action
->release
== WILDCARD_INT
||
729 action
->release
== devinfo
->udi_releaseNo
) &&
730 (action
->class == WILDCARD_INT
||
731 action
->class == devinfo
->udi_class
) &&
732 (action
->subclass
== WILDCARD_INT
||
733 action
->subclass
== devinfo
->udi_subclass
) &&
734 (action
->protocol
== WILDCARD_INT
||
735 action
->protocol
== devinfo
->udi_protocol
) &&
736 (action
->devname
== WILDCARD_STRING
||
737 (match
= match_devname(action
, devinfo
)) != -1)) {
740 /* Find a devname for pretty printing. Either
741 * the matched one or otherwise, if there is only
742 * one devname for that device, use that.
745 _devname
= devinfo
->udi_devnames
[match
];
746 else if (devinfo
->udi_devnames
[0][0] != '\0' &&
747 devinfo
->udi_devnames
[1][0] == '\0')
748 /* if we have exactly 1 device name */
749 _devname
= devinfo
->udi_devnames
[0];
752 printf("%s: Found action '%s' for %s, %s",
753 __progname
, action
->name
,
754 devinfo
->udi_product
, devinfo
->udi_vendor
);
756 printf(" at %s", _devname
);
760 action_match
->action
= action
;
761 action_match
->devname
= _devname
;
771 execute_command(char *cmd
)
774 struct sigaction ign
, intact
, quitact
;
775 sigset_t newsigblock
, oldsigblock
;
780 printf("%s: Executing '%s'\n", __progname
, cmd
);
784 /* The code below is directly taken from the system(3) call.
785 * Added to it is the closing of open file descriptors.
788 * Ignore SIGINT and SIGQUIT, block SIGCHLD. Remember to save
789 * existing signal dispositions.
791 ign
.sa_handler
= SIG_IGN
;
792 sigemptyset(&ign
.sa_mask
);
794 sigaction(SIGINT
, &ign
, &intact
);
795 sigaction(SIGQUIT
, &ign
, &quitact
);
796 sigemptyset(&newsigblock
);
797 sigaddset(&newsigblock
, SIGCHLD
);
798 sigprocmask(SIG_BLOCK
, &newsigblock
, &oldsigblock
);
801 fprintf(stderr
, "%s: fork failed, %s\n",
802 __progname
, strerror(errno
));
803 } else if (pid
== 0) {
806 /* close all open file handles for USBDEV\d* devices */
807 for (i
= 0; i
< ndevs
; i
++)
808 close(fds
[i
]); /* USBDEV\d+ */
809 close(fd
); /* USBDEV */
811 /* Restore original signal dispositions and exec the command. */
812 sigaction(SIGINT
, &intact
, NULL
);
813 sigaction(SIGQUIT
, &quitact
, NULL
);
814 sigprocmask(SIG_SETMASK
, &oldsigblock
, NULL
);
816 execl(_PATH_BSHELL
, "sh", "-c", cmd
, NULL
);
818 /* should only be reached in case of error */
823 pid
= waitpid(pid
, &status
, 0);
824 } while (pid
== -1 && errno
== EINTR
);
826 sigaction(SIGINT
, &intact
, NULL
);
827 sigaction(SIGQUIT
, &quitact
, NULL
);
828 sigprocmask(SIG_SETMASK
, &oldsigblock
, NULL
);
831 fprintf(stderr
, "%s: waitpid returned: %s\n",
832 __progname
, strerror(errno
));
833 } else if (pid
== 0) {
834 fprintf(stderr
, "%s: waitpid returned 0 ?!\n",
838 fprintf(stderr
, "%s: Could not start '%s'\n",
840 } else if (status
== 127) {
841 fprintf(stderr
, "%s: Shell failed for '%s'\n",
843 } else if (WIFEXITED(status
) && WEXITSTATUS(status
)) {
844 fprintf(stderr
, "%s: '%s' returned %d\n",
845 __progname
, cmd
, WEXITSTATUS(status
));
846 } else if (WIFSIGNALED(status
)) {
847 fprintf(stderr
, "%s: '%s' caught signal %d\n",
848 __progname
, cmd
, WTERMSIG(status
));
849 } else if (verbose
>= 2) {
850 printf("%s: '%s' is ok\n", __progname
, cmd
);
856 process_event_queue(int fdesc
)
858 struct usb_event event
;
861 action_match_t action_match
;
864 len
= read(fdesc
, &event
, sizeof(event
));
866 if (errno
== EWOULDBLOCK
) {
870 fprintf(stderr
,"%s: Could not read event, %s\n",
871 __progname
, strerror(errno
));
877 if (len
!= sizeof(event
)) {
878 fprintf(stderr
, "partial read on %s\n", USBDEV
);
882 /* we seem to have gotten a valid event */
887 /* handle the event appropriately */
888 switch (event
.ue_type
) {
889 case USB_EVENT_CTRLR_ATTACH
:
891 printf("USB_EVENT_CTRLR_ATTACH\n");
893 case USB_EVENT_CTRLR_DETACH
:
895 printf("USB_EVENT_CTRLR_DETACH\n");
897 case USB_EVENT_DEVICE_ATTACH
:
898 case USB_EVENT_DEVICE_DETACH
:
899 if (find_action(&event
.u
.ue_device
, &action_match
) == 0)
904 print_action(action_match
.action
, 0);
906 if (action_match
.devname
) {
908 printf("%s: Setting DEVNAME='%s'\n",
909 __progname
, action_match
.devname
);
911 error
= setenv("DEVNAME", action_match
.devname
, 1);
913 fprintf(stderr
, "%s: setenv(\"DEVNAME\", \"%s\",1) failed, %s\n",
914 __progname
, action_match
.devname
, strerror(errno
));
917 if (USB_EVENT_IS_ATTACH(event
.ue_type
) &&
918 action_match
.action
->attach
)
919 execute_command(action_match
.action
->attach
);
920 if (USB_EVENT_IS_DETACH(event
.ue_type
) &&
921 action_match
.action
->detach
)
922 execute_command(action_match
.action
->detach
);
924 case USB_EVENT_DRIVER_ATTACH
:
926 printf("USB_EVENT_DRIVER_ATTACH\n");
928 case USB_EVENT_DRIVER_DETACH
:
930 printf("USB_EVENT_DRIVER_DETACH\n");
933 printf("Unknown USB event %d\n", event
.ue_type
);
940 main(int argc
, char **argv
)
943 int ch
; /* getopt option */
944 int debug
= 0; /* print debugging output */
945 int explore_once
= 0; /* don't do only explore */
946 int handle_events
= 1; /* do handle the event queue */
947 int maxfd
; /* maximum fd in use */
948 char buf
[50]; /* for creation of the filename */
950 int itimeout
= TIMEOUT
; /* timeout for select */
953 if (modfind(USB_UHUB
) < 0) {
954 if (kldload(USB_KLD
) < 0 || modfind(USB_UHUB
) < 0) {
955 perror(USB_KLD
": Kernel module not available");
960 while ((ch
= getopt(argc
, argv
, "c:def:nt:v")) != -1) {
963 configfile
= strdup(optarg
);
964 if (configfile
== NULL
) {
965 fprintf(stderr
, "strdup returned NULL\n");
976 if (ndevs
< MAXUSBDEV
)
977 devs
[ndevs
++] = optarg
;
983 itimeout
= atoi(optarg
);
998 /* open all the USBDEVS\d+ devices */
999 for (i
= 0; i
< MAXUSBDEV
; i
++) {
1000 sprintf(buf
, "%s%d", USBDEV
, i
);
1001 fds
[ndevs
] = open(buf
, O_RDWR
);
1002 if (fds
[ndevs
] >= 0) {
1003 devs
[ndevs
] = strdup(buf
);
1004 if (devs
[ndevs
] == NULL
) {
1005 fprintf(stderr
, "strdup returned NULL\n");
1009 printf("%s: opened %s\n",
1010 __progname
, devs
[ndevs
]);
1011 if (fds
[ndevs
] > maxfd
)
1014 } else if (errno
!= ENXIO
&& errno
!= ENOENT
) {
1015 /* there was an error, on a device that does
1016 * exist (device is configured)
1018 fprintf(stderr
, "%s: Could not open %s, %s\n",
1019 __progname
, buf
, strerror(errno
));
1024 /* open all the files specified with -f */
1025 for (i
= 0; i
< ndevs
; i
++) {
1026 fds
[i
] = open(devs
[i
], O_RDWR
);
1028 fprintf(stderr
, "%s: Could not open %s, %s\n",
1029 __progname
, devs
[i
], strerror(errno
));
1033 printf("%s: opened %s\n",
1034 __progname
, devs
[i
]);
1042 fprintf(stderr
, "No USB host controllers found\n");
1047 /* Do the explore once and exit */
1049 for (i
= 0; i
< ndevs
; i
++) {
1050 error
= ioctl(fds
[i
], USB_DISCOVER
);
1052 fprintf(stderr
, "%s: ioctl(%s, USB_DISCOVER) "
1054 __progname
, devs
[i
], strerror(errno
));
1061 if (handle_events
) {
1063 printf("%s: reading configuration file %s\n",
1064 __progname
, configfile
);
1065 read_configuration();
1067 fd
= open(USBDEV
, O_RDONLY
| O_NONBLOCK
);
1069 fprintf(stderr
, "%s: Could not open %s, %s\n",
1070 __progname
, USBDEV
, strerror(errno
));
1074 printf("%s: opened %s\n", __progname
, USBDEV
);
1078 process_event_queue(fd
); /* dequeue the initial events */
1081 /* move to the background */
1085 /* start select on all the open file descriptors */
1090 FD_SET(fd
, &r
); /* device USBDEV */
1091 for (i
= 0; i
< ndevs
; i
++)
1092 FD_SET(fds
[i
], &w
); /* device USBDEV\d+ */
1094 tv
.tv_sec
= itimeout
;
1095 error
= select(maxfd
+1, &r
, &w
, 0, itimeout
? &tv
: 0);
1097 fprintf(stderr
, "%s: Select failed, %s\n",
1098 __progname
, strerror(errno
));
1102 /* USBDEV\d+ devices have signaled change, do a usb_discover */
1103 for (i
= 0; i
< ndevs
; i
++) {
1104 if (error
== 0 || FD_ISSET(fds
[i
], &w
)) {
1106 printf("%s: doing %sdiscovery on %s\n",
1108 (error
? "":"timeout "), devs
[i
]);
1109 if (ioctl(fds
[i
], USB_DISCOVER
) < 0) {
1110 fprintf(stderr
, "%s: ioctl(%s, "
1111 "USB_DISCOVER) failed, %s\n",
1112 __progname
, devs
[i
],
1119 /* check the event queue */
1120 if (handle_events
&& (FD_ISSET(fd
, &r
) || error
== 0)) {
1122 printf("%s: processing event queue %son %s\n",
1124 (error
? "":"due to timeout "), USBDEV
);
1125 process_event_queue(fd
);