From 66bb1ef94c517bcefd46de4d10b0dd8afa0e234f Mon Sep 17 00:00:00 2001 From: n_hibma Date: Sun, 28 Nov 1999 21:27:31 +0000 Subject: Add the ability to match on device names attached to. If a device is attached to ums4, you can reference this devname in the configuration file as ${DEVNAME} (a shell variable, yes). --- usr.sbin/usbd/usbd.c | 169 +++++++++++++++++++++++++++++++++++++++------- usr.sbin/usbd/usbd.conf.5 | 25 ++++++- 2 files changed, 166 insertions(+), 28 deletions(-) (limited to 'usr.sbin/usbd') diff --git a/usr.sbin/usbd/usbd.c b/usr.sbin/usbd/usbd.c index f5371ae..3cc157e 100644 --- a/usr.sbin/usbd/usbd.c +++ b/usr.sbin/usbd/usbd.c @@ -60,6 +60,7 @@ #include #include #include +#include #include @@ -121,6 +122,7 @@ event_name_t event_names[] = { #define CLASS_FIELD 4 #define SUBCLASS_FIELD 5 #define PROTOCOL_FIELD 6 +#define DEVNAME_FIELD 7 #define ATTACH_FIELD 8 /* command fields */ #define DETACH_FIELD 9 @@ -135,6 +137,8 @@ typedef struct action_s { int class; int subclass; int protocol; + char *devname; + regex_t devname_regex; char *attach; /* commands to execute */ char *detach; @@ -144,6 +148,11 @@ typedef struct action_s { STAILQ_HEAD(action_list, action_s) actions = STAILQ_HEAD_INITIALIZER(actions); +typedef struct action_match_s { + action_t *action; + char *devname; +} action_match_t; + /* the function returns 0 for failure, 1 for all arguments found and 2 for * arguments left over in trail. @@ -158,6 +167,7 @@ int set_release_field(action_t *action, char *args, char **trail); int set_class_field(action_t *action, char *args, char **trail); int set_subclass_field(action_t *action, char *args, char **trail); int set_protocol_field(action_t *action, char *args, char **trail); +int set_devname_field(action_t *action, char *args, char **trail); int set_attach_field(action_t *action, char *args, char **trail); int set_detach_field(action_t *action, char *args, char **trail); @@ -177,6 +187,7 @@ config_field_t config_fields[] = { {CLASS_FIELD, "class", set_class_field}, {SUBCLASS_FIELD, "subclass", set_subclass_field}, {PROTOCOL_FIELD, "protocol", set_protocol_field}, + {DEVNAME_FIELD, "devname", set_devname_field}, {ATTACH_FIELD, "attach", set_attach_field}, {DETACH_FIELD, "detach", set_detach_field}, @@ -189,7 +200,8 @@ config_field_t config_fields[] = { void print_event __P((struct usb_event *event)); void print_action __P((action_t *action, int i)); void print_actions __P((void)); -action_t *find_action __P((struct usb_device_info *devinfo)); +int find_action __P((struct usb_device_info *devinfo, + action_match_t *action_match)); void @@ -354,6 +366,38 @@ set_protocol_field(action_t *action, char *args, char **trail) return(get_integer(args, &action->protocol, trail)); } int +set_devname_field(action_t *action, char *args, char **trail) +{ + int match = get_string(args, &action->devname, trail); + int len; + int error; + char *string; +# define ERRSTR_SIZE 100 + char errstr[ERRSTR_SIZE]; + + if (match == 0) + return(0); + + len = strlen(action->devname); + string = malloc(len + 14); + if (string == NULL) + return(0); + + bcopy(action->devname, string+7, len); /* make some space for */ + bcopy("[[:<:]]", string, 7); /* beginning of word */ + bcopy("[[:>:]]", string+7+len, 7); /* and end of word */ + + error = regcomp(&action->devname_regex, string, REG_NOSUB|REG_EXTENDED); + if (error) { + errstr[0] = '\0'; + regerror(error, &action->devname_regex, errstr, ERRSTR_SIZE); + fprintf(stderr, "%s:%d: %s\n", configfile, lineno, errstr); + return(0); + } + + return(match); +} +int set_attach_field(action_t *action, char *args, char **trail) { return(get_string(args, &action->attach, trail)); @@ -468,6 +512,7 @@ read_configuration(void) action->class = WILDCARD_INT; action->subclass = WILDCARD_INT; action->protocol = WILDCARD_INT; + action->devname = WILDCARD_STRING; /* Add it to the end of the list to preserve order */ STAILQ_INSERT_TAIL(&actions, action, next); @@ -534,6 +579,20 @@ print_event(struct usb_event *event) "clss=0x%04x subclss=0x%04x prtcl=0x%04x\n", devinfo->vendorNo, devinfo->productNo, devinfo->releaseNo, devinfo->class, devinfo->subclass, devinfo->protocol); + + if (devinfo->devnames[0][0] != '\0') { + char c = ' '; + + printf(" device names:"); + for (i = 0; i < MAXDEVNAMES; i++) { + if (devinfo->devnames[i][0] == '\0') + break; + + printf("%c%s", c, devinfo->devnames[i]); + c = ','; + } + printf("\n"); + } } void @@ -571,13 +630,15 @@ print_action(action_t *action, int i) action->subclass != WILDCARD_INT || action->protocol != WILDCARD_INT) printf("\n"); + if (action->devname != WILDCARD_STRING) + printf(" devname: %s\n", action->devname); if (action->attach != NULL) - printf("%s: attach='%s'\n", - __progname, action->attach); + printf(" attach='%s'\n", + action->attach); if (action->detach != NULL) - printf("%s: detach='%s'\n", - __progname, action->detach); + printf(" detach='%s'\n", + action->detach); } void @@ -592,10 +653,38 @@ print_actions() printf("%s: %d action%s\n", __progname, i, (i == 1? "":"s")); } -action_t * -find_action(struct usb_device_info *devinfo) + +int +match_devname(action_t *action, struct usb_device_info *devinfo) +{ + int i; + regmatch_t match; + int error; + + for (i = 0; i < MAXDEVNAMES; i++) { + if (devinfo->devnames[i][0] == '\0') + break; + + error = regexec(&action->devname_regex, devinfo->devnames[i], + 1, &match, 0); + if (error == 0) { + if (verbose >= 2) + printf("%s: %s matches %s\n", __progname, + devinfo->devnames[i], action->devname); + return(i); + } + } + + return(-1); +} + + +int +find_action(struct usb_device_info *devinfo, action_match_t *action_match) { action_t *action; + char *devname = NULL; + int match = -1; STAILQ_FOREACH(action, &actions, next) { if ((action->vendor == WILDCARD_INT || @@ -609,24 +698,40 @@ find_action(struct usb_device_info *devinfo) (action->subclass == WILDCARD_INT || action->subclass == devinfo->subclass) && (action->protocol == WILDCARD_INT || - action->protocol == devinfo->protocol)) { + action->protocol == devinfo->protocol) && + (action->devname == WILDCARD_STRING || + (match = match_devname(action, devinfo)) != -1)) { /* found match !*/ - if (verbose) - printf("%s: Found action '%s' for %s, %s\n", + if (match != -1) + devname = devinfo->devnames[match]; + else if (devinfo->devnames[0][0] != '\0' && + devinfo->devnames[1][0] == '\0') + /* if we have exactly 1 device name */ + devname = devinfo->devnames[0]; + + if (verbose) { + printf("%s: Found action '%s' for %s, %s", __progname, action->name, devinfo->product, devinfo->vendor); - return(action); + if (devname) + printf(" at %s", devname); + printf("\n"); + } + + action_match->action = action; + action_match->devname = devname; + + return(1); } } - return NULL; + return(0); } void execute_command(char *cmd) { pid_t pid; - int pstat; struct sigaction ign, intact, quitact; sigset_t newsigblock, oldsigblock; int status; @@ -671,11 +776,12 @@ execute_command(char *cmd) execl(_PATH_BSHELL, "sh", "-c", cmd, (char *)NULL); + /* should only be reached in case of error */ exit(127); } else { /* parent here */ do { - pid = waitpid(pid, &pstat, 0); + pid = waitpid(pid, &status, 0); } while (pid == -1 && errno == EINTR); } (void) sigaction(SIGINT, &intact, NULL); @@ -701,8 +807,8 @@ execute_command(char *cmd) } else if (WIFSIGNALED(status)) { fprintf(stderr, "%s: '%s' caught signal %d\n", __progname, cmd, WTERMSIG(status)); - } else if (verbose) { - printf("%s: '%s' is done\n", __progname, cmd); + } else if (verbose >= 2) { + printf("%s: '%s' is ok\n", __progname, cmd); } } } @@ -711,8 +817,9 @@ void process_event_queue(int fd) { struct usb_event event; + int error; int len; - action_t *action; + action_match_t action_match; for (;;) { len = read(fd, &event, sizeof(event)); @@ -742,16 +849,28 @@ process_event_queue(int fd) switch (event.ue_type) { case USB_EVENT_ATTACH: case USB_EVENT_DETACH: - action = find_action(&event.ue_device); - if (action == NULL) + if (find_action(&event.ue_device, &action_match) == 0) + /* nothing found */ break; - else if (verbose >= 2) - print_action(action, 0); - if (event.ue_type == USB_EVENT_ATTACH && action->attach) - execute_command(action->attach); - if (event.ue_type == USB_EVENT_DETACH && action->detach) - execute_command(action->detach); + if (verbose >= 2) + print_action(action_match.action, 0); + + if (action_match.devname) { + if (verbose >= 2) + printf("%s: Setting DEVNAME='%s'\n", + __progname, action_match.devname); + + error = setenv("DEVNAME", action_match.devname, 1); + if (error) + fprintf(stderr, "%s: setenv(\"DEVNAME\", \"%s\",1) failed, %s\n", + __progname, action_match.devname, strerror(errno)); + } + + if (event.ue_type == USB_EVENT_ATTACH && action_match.action->attach) + execute_command(action_match.action->attach); + if (event.ue_type == USB_EVENT_DETACH && action_match.action->detach) + execute_command(action_match.action->detach); break; default: diff --git a/usr.sbin/usbd/usbd.conf.5 b/usr.sbin/usbd/usbd.conf.5 index add8518..c7f08c1 100644 --- a/usr.sbin/usbd/usbd.conf.5 +++ b/usr.sbin/usbd/usbd.conf.5 @@ -77,8 +77,14 @@ Device Class Device Subclass .It protocol Ar id Device Protocol -.It devicenames Ar string -Device name, for example umass2, or ums0. +.It devname Ar string +Device name, for example umass2, or ums0. These device names can contain +regular expressions. See +.Xr regex 3 +and +.Xr re_format 7 . +The device name that is matched can be used in the commands below +through adding ${DEVNAME} somewhere in that string. .El .Pp String arguments may be quoted. If a string argument contains a space or @@ -102,9 +108,15 @@ and .Fl -v flags. .Pp +Commands to be executed when the action is matched: +.Bl -tag -width devicename\ +.It attach Ar string +Shell command to execute when a device is attached. +.It detach Ar string +Shell command to execute when a device is detached. .Sh EXAMPLES A sample entry to rescan the SCSI bus on connection of a -.Tn "Iomega USB Zip Drive" . +.Tn "Iomega USB Zip Drive" : .Bd -literal device "USB Zip drive" product 0x0001 @@ -112,6 +124,13 @@ A sample entry to rescan the SCSI bus on connection of a release 0x0100 attach "/usr/bin/camcontrol rescan bus 0" .Ed +.Pp +To start up moused for a newly attached mouse: +.Bd -literal + device "Mouse" + devname "ums[0-9]+ + attach "/usr/sbin/moused -p /dev/${DEVNAME} -I /var/run/moused.${DEVNAME}.pid" +.El .Sh FILES .Bl -tag -width /etc/pccard.conf -compact .It Pa /etc/usbd.conf -- cgit v1.1