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path: root/usr/src/cmd/modload/drvsubr.c
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Diffstat (limited to 'usr/src/cmd/modload/drvsubr.c')
-rw-r--r--usr/src/cmd/modload/drvsubr.c201
1 files changed, 149 insertions, 52 deletions
diff --git a/usr/src/cmd/modload/drvsubr.c b/usr/src/cmd/modload/drvsubr.c
index d04d914e14..5347a3d32b 100644
--- a/usr/src/cmd/modload/drvsubr.c
+++ b/usr/src/cmd/modload/drvsubr.c
@@ -19,7 +19,7 @@
* CDDL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
@@ -1005,19 +1005,19 @@ exec_command(char *path, char *cmdline[MAX_CMD_LINE])
}
/*
- * check that major_num doesn't exceed maximum on this machine
- * do this here to support add_drv on server for diskless clients
+ * Exec devfsadm to perform driver config/unconfig operation,
+ * adding or removing aliases.
*/
-int
-config_driver(
+static int
+exec_devfsadm(
+ boolean_t config,
char *driver_name,
major_t major_num,
char *aliases,
char *classes,
- int cleanup_flag,
- int verbose_flag)
+ int verbose_flag,
+ int force_flag)
{
- int max_dev;
int n = 0;
char *cmdline[MAX_CMD_LINE];
char maj_num[128];
@@ -1025,23 +1025,15 @@ config_driver(
char *current;
int exec_status;
int len;
-
- if (modctl(MODRESERVED, NULL, &max_dev) < 0) {
- perror(NULL);
- (void) fprintf(stderr, gettext(ERR_MAX_MAJOR));
- return (ERROR);
- }
-
- if (major_num >= max_dev) {
- (void) fprintf(stderr, gettext(ERR_MAX_EXCEEDS),
- major_num, max_dev);
- return (ERROR);
- }
-
- /* bind major number and driver name */
+ int rv;
/* build command line */
cmdline[n++] = DRVCONFIG;
+ if (config == B_FALSE) {
+ cmdline[n++] = "-u"; /* unconfigure */
+ if (force_flag)
+ cmdline[n++] = "-f"; /* force if currently in use */
+ }
if (verbose_flag) {
cmdline[n++] = "-v";
}
@@ -1076,9 +1068,57 @@ config_driver(
}
cmdline[n] = (char *)0;
- exec_status = exec_command(DRVCONFIG_PATH, cmdline);
+ rv = exec_command(DRVCONFIG_PATH, cmdline);
+ if (rv == NOERR)
+ return (NOERR);
+ return (ERROR);
+}
- if (exec_status == NOERR)
+int
+unconfig_driver(
+ char *driver_name,
+ major_t major_num,
+ char *aliases,
+ int verbose_flag,
+ int force_flag)
+{
+ return (exec_devfsadm(B_FALSE, driver_name, major_num,
+ aliases, NULL, verbose_flag, force_flag));
+}
+
+/*
+ * check that major_num doesn't exceed maximum on this machine
+ * do this here to support add_drv on server for diskless clients
+ */
+int
+config_driver(
+ char *driver_name,
+ major_t major_num,
+ char *aliases,
+ char *classes,
+ int cleanup_flag,
+ int verbose_flag)
+{
+ int max_dev;
+ int rv;
+
+ if (modctl(MODRESERVED, NULL, &max_dev) < 0) {
+ perror(NULL);
+ (void) fprintf(stderr, gettext(ERR_MAX_MAJOR));
+ return (ERROR);
+ }
+
+ if (major_num >= max_dev) {
+ (void) fprintf(stderr, gettext(ERR_MAX_EXCEEDS),
+ major_num, max_dev);
+ return (ERROR);
+ }
+
+ /* bind major number and driver name */
+ rv = exec_devfsadm(B_TRUE, driver_name, major_num,
+ aliases, classes, verbose_flag, 0);
+
+ if (rv == NOERR)
return (NOERR);
perror(NULL);
remove_entry(cleanup_flag, driver_name);
@@ -1499,8 +1539,9 @@ aliases_unique(char *aliases)
char *current_head;
char *previous_head;
char *one_entry;
- int i, len;
+ int len;
int is_unique;
+ int err;
len = strlen(aliases);
@@ -1513,43 +1554,91 @@ aliases_unique(char *aliases)
previous_head = aliases;
do {
- for (i = 0; i <= len; i++)
- one_entry[i] = 0;
-
+ bzero(one_entry, len+1);
current_head = get_entry(previous_head, one_entry, ' ', 1);
previous_head = current_head;
if ((unique_driver_name(one_entry, name_to_major,
- &is_unique)) == ERROR) {
- free(one_entry);
- return (ERROR);
- }
+ &is_unique)) == ERROR)
+ goto err_out;
if (is_unique != UNIQUE) {
(void) fprintf(stderr, gettext(ERR_ALIAS_IN_NAM_MAJ),
one_entry);
- free(one_entry);
- return (ERROR);
+ goto err_out;
}
- if (unique_drv_alias(one_entry) != NOERR) {
- free(one_entry);
- return (ERROR);
+ if ((err = unique_drv_alias(one_entry)) != UNIQUE) {
+ if (err == NOT_UNIQUE) {
+ (void) fprintf(stderr,
+ gettext(ERR_ALIAS_IN_USE), one_entry);
+ }
+ goto err_out;
}
if (!is_token(one_entry)) {
(void) fprintf(stderr, gettext(ERR_BAD_TOK),
"-i", one_entry);
- free(one_entry);
- return (ERROR);
+ goto err_out;
}
} while (*current_head != '\0');
free(one_entry);
+ return (NOERR);
+
+err_out:
+ free(one_entry);
+ return (ERROR);
+}
+/*
+ * verify each alias :
+ * alias list members separated by white space and quoted
+ * exist as alias name in /etc/driver_aliases
+ */
+int
+aliases_exist(char *drvname, char *aliases)
+{
+ char *current_head;
+ char *previous_head;
+ char *one_entry;
+ int len;
+ int is_unique;
+ int err;
+
+ len = strlen(aliases);
+
+ one_entry = calloc(len + 1, 1);
+ if (one_entry == NULL) {
+ (void) fprintf(stderr, gettext(ERR_NO_MEM));
+ return (ERROR);
+ }
+
+ previous_head = aliases;
+
+ do {
+ bzero(one_entry, len+1);
+ current_head = get_entry(previous_head, one_entry, ' ', 1);
+ previous_head = current_head;
+
+ if ((err = unique_drv_alias(one_entry)) != NOT_UNIQUE)
+ goto err_out;
+
+ if (!is_token(one_entry)) {
+ (void) fprintf(stderr, gettext(ERR_BAD_TOK),
+ "-i", one_entry);
+ goto err_out;
+ }
+
+ } while (*current_head != '\0');
+
+ free(one_entry);
return (NOERR);
+err_out:
+ free(one_entry);
+ return (ERROR);
}
@@ -1616,6 +1705,14 @@ update_driver_aliases(
}
+/*
+ * Return:
+ * ERROR in case of memory or read error
+ * UNIQUE if there is no existing match to the supplied alias
+ * NOT_UNIQUE if there is a match
+ * An error message is emitted in the case of ERROR,
+ * up to the caller otherwise.
+ */
int
unique_drv_alias(char *drv_alias)
{
@@ -1624,13 +1721,13 @@ unique_drv_alias(char *drv_alias)
char line[MAX_N2M_ALIAS_LINE + 1], *cp;
char alias[FILENAME_MAX + 1];
char *a;
- int status = NOERR;
+ int status = UNIQUE;
fp = fopen(driver_aliases, "r");
if (fp != NULL) {
while ((fgets(line, sizeof (line), fp) != 0) &&
- status != ERROR) {
+ status == UNIQUE) {
/* cut off comments starting with '#' */
if ((cp = strchr(line, '#')) != NULL)
*cp = '\0';
@@ -1652,10 +1749,8 @@ unique_drv_alias(char *drv_alias)
if ((strcmp(drv_alias, drv) == 0) ||
(strcmp(drv_alias, a) == 0)) {
- (void) fprintf(stderr,
- gettext(ERR_ALIAS_IN_USE),
- drv_alias);
- status = ERROR;
+ status = NOT_UNIQUE;
+ break;
}
}
(void) fclose(fp);
@@ -1670,24 +1765,26 @@ unique_drv_alias(char *drv_alias)
/*
* search for driver_name in first field of file file_name
- * searching name_to_major and driver_aliases: name separated from rest of
- * line by blank
- * if there return
- * else return
+ * searching name_to_major and driver_aliases: name separated
+ * from the remainder of the line by white space.
*/
int
unique_driver_name(char *driver_name, char *file_name,
int *is_unique)
{
- int ret;
+ int ret, err;
if ((ret = get_major_no(driver_name, file_name)) == ERROR) {
(void) fprintf(stderr, gettext(ERR_CANT_ACCESS_FILE),
file_name);
} else {
- /* XXX */
/* check alias file for name collision */
- if (unique_drv_alias(driver_name) == ERROR) {
+ if ((err = unique_drv_alias(driver_name)) != UNIQUE) {
+ if (err == NOT_UNIQUE) {
+ (void) fprintf(stderr,
+ gettext(ERR_ALIAS_IN_USE),
+ driver_name);
+ }
ret = ERROR;
} else {
if (ret != UNIQUE)
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-16 19:57:49 +0000