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path: root/sys/boot/uboot/lib/devicename.c
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Diffstat (limited to 'sys/boot/uboot/lib/devicename.c')
-rw-r--r--sys/boot/uboot/lib/devicename.c305
1 files changed, 156 insertions, 149 deletions
diff --git a/sys/boot/uboot/lib/devicename.c b/sys/boot/uboot/lib/devicename.c
index 2bf2beaccc03..c56d842796b9 100644
--- a/sys/boot/uboot/lib/devicename.c
+++ b/sys/boot/uboot/lib/devicename.c
@@ -27,16 +27,17 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
+#include <sys/disklabel.h>
+
#include <stand.h>
#include <string.h>
-#include <sys/disklabel.h>
#include "bootstrap.h"
#include "libuboot.h"
static int uboot_parsedev(struct uboot_devdesc **dev, const char *devspec, const char **path);
-/*
+/*
* Point (dev) at an allocated device specifier for the device matching the
* path in (devspec). If it contains an explicit device specification,
* use that. If not, use the default device.
@@ -44,27 +45,26 @@ static int uboot_parsedev(struct uboot_devdesc **dev, const char *devspec, const
int
uboot_getdev(void **vdev, const char *devspec, const char **path)
{
- struct uboot_devdesc **dev = (struct uboot_devdesc **)vdev;
- int rv;
-
- /*
- * If it looks like this is just a path and no
- * device, go with the current device.
- */
- if ((devspec == NULL) ||
- (devspec[0] == '/') ||
- (strchr(devspec, ':') == NULL)) {
-
- if (((rv = uboot_parsedev(dev, getenv("currdev"), NULL)) == 0) &&
- (path != NULL))
+ struct uboot_devdesc **dev = (struct uboot_devdesc **)vdev;
+ int rv;
+
+ /*
+ * If it looks like this is just a path and no
+ * device, go with the current device.
+ */
+ if ((devspec == NULL) || (devspec[0] == '/') ||
+ (strchr(devspec, ':') == NULL)) {
+
+ if (((rv = uboot_parsedev(dev, getenv("currdev"), NULL)) == 0)
+ && (path != NULL))
*path = devspec;
- return(rv);
- }
-
- /*
- * Try to parse the device name off the beginning of the devspec
- */
- return(uboot_parsedev(dev, devspec, path));
+ return(rv);
+ }
+
+ /*
+ * Try to parse the device name off the beginning of the devspec.
+ */
+ return(uboot_parsedev(dev, devspec, path));
}
/*
@@ -79,159 +79,166 @@ uboot_getdev(void **vdev, const char *devspec, const char **path)
* For disk-type devices, the syntax is:
*
* disk<unit>[s<slice>][<partition>]:
- *
+ *
*/
static int
-uboot_parsedev(struct uboot_devdesc **dev, const char *devspec, const char **path)
+uboot_parsedev(struct uboot_devdesc **dev, const char *devspec,
+ const char **path)
{
- struct uboot_devdesc *idev;
- struct devsw *dv;
- int i, unit, slice, partition, err;
- char *cp;
- const char *np;
-
- /* minimum length check */
- if (strlen(devspec) < 2)
- return(EINVAL);
-
- /* look for a device that matches */
- for (i = 0, dv = NULL; devsw[i] != NULL; i++) {
- if (!strncmp(devspec, devsw[i]->dv_name, strlen(devsw[i]->dv_name))) {
- dv = devsw[i];
- break;
+ struct uboot_devdesc *idev;
+ struct devsw *dv;
+ char *cp;
+ const char *np;
+ int i, unit, slice, partition, err;
+
+ /* minimum length check */
+ if (strlen(devspec) < 2)
+ return(EINVAL);
+
+ /* look for a device that matches */
+ for (i = 0, dv = NULL; devsw[i] != NULL; i++) {
+ if (!strncmp(devspec, devsw[i]->dv_name,
+ strlen(devsw[i]->dv_name))) {
+ dv = devsw[i];
+ break;
+ }
}
- }
- if (dv == NULL)
- return(ENOENT);
- idev = malloc(sizeof(struct uboot_devdesc));
- err = 0;
- np = (devspec + strlen(dv->dv_name));
-
- switch(dv->dv_type) {
- case DEVT_NONE: /* XXX what to do here? Do we care? */
- break;
-
- case DEVT_DISK:
- unit = -1;
- slice = -1;
- partition = -1;
- if (*np && (*np != ':')) {
- unit = strtol(np, &cp, 10); /* next comes the unit number */
- if (cp == np) {
- err = EUNIT;
+ if (dv == NULL)
+ return(ENOENT);
+ idev = malloc(sizeof(struct uboot_devdesc));
+ err = 0;
+ np = (devspec + strlen(dv->dv_name));
+
+ switch(dv->dv_type) {
+ case DEVT_NONE: /* XXX what to do here? Do we care? */
+ break;
+
+ case DEVT_DISK:
+ unit = -1;
+ slice = -1;
+ partition = -1;
+ if (*np && (*np != ':')) {
+ /* next comes the unit number */
+ unit = strtol(np, &cp, 10);
+ if (cp == np) {
+ err = EUNIT;
+ goto fail;
+ }
+ if (*cp == 's') { /* got a slice number */
+ np = cp + 1;
+ slice = strtol(np, &cp, 10);
+ if (cp == np) {
+ err = ESLICE;
+ goto fail;
+ }
+ }
+ if (*cp && (*cp != ':')) {
+ /* get a partition number */
+ partition = *cp - 'a';
+ if ((partition < 0) ||
+ (partition >= MAXPARTITIONS)) {
+ err = EPART;
+ goto fail;
+ }
+ cp++;
+ }
+ }
+ if (*cp && (*cp != ':')) {
+ err = EINVAL;
goto fail;
- }
- if (*cp == 's') { /* got a slice number */
- np = cp + 1;
- slice = strtol(np, &cp, 10);
- if (cp == np) {
- err = ESLICE;
- goto fail;
}
- }
- if (*cp && (*cp != ':')) {
- partition = *cp - 'a'; /* get a partition number */
- if ((partition < 0) || (partition >= MAXPARTITIONS)) {
- err = EPART;
- goto fail;
+
+ idev->d_unit = unit;
+ idev->d_kind.disk.slice = slice;
+ idev->d_kind.disk.partition = partition;
+ if (path != NULL)
+ *path = (*cp == 0) ? cp : cp + 1;
+ break;
+
+ case DEVT_NET:
+ unit = 0;
+
+ if (*np && (*np != ':')) {
+ /* get unit number if present */
+ unit = strtol(np, &cp, 0);
+ if (cp == np) {
+ err = EUNIT;
+ goto fail;
+ }
+ }
+ if (*cp && (*cp != ':')) {
+ err = EINVAL;
+ goto fail;
}
- cp++;
- }
- }
- if (*cp && (*cp != ':')) {
- err = EINVAL;
- goto fail;
- }
- idev->d_unit = unit;
- idev->d_kind.disk.slice = slice;
- idev->d_kind.disk.partition = partition;
- if (path != NULL)
- *path = (*cp == 0) ? cp : cp + 1;
- break;
+ if (dv->dv_type == DEVT_NET)
+ idev->d_unit = unit;
- case DEVT_NET:
- unit = 0;
+ if (path != NULL)
+ *path = (*cp == 0) ? cp : cp + 1;
+ break;
- if (*np && (*np != ':')) {
- unit = strtol(np, &cp, 0); /* get unit number if present */
- if (cp == np) {
- err = EUNIT;
+ default:
+ err = EINVAL;
goto fail;
- }
}
- if (*cp && (*cp != ':')) {
- err = EINVAL;
- goto fail;
+ idev->d_dev = dv;
+ idev->d_type = dv->dv_type;
+ if (dev == NULL) {
+ free(idev);
+ } else {
+ *dev = idev;
}
+ return(0);
- if (dv->dv_type == DEVT_NET)
- idev->d_unit = unit;
-
- if (path != NULL)
- *path = (*cp == 0) ? cp : cp + 1;
- break;
-
- default:
- err = EINVAL;
- goto fail;
- }
- idev->d_dev = dv;
- idev->d_type = dv->dv_type;
- if (dev == NULL) {
+fail:
free(idev);
- } else {
- *dev = idev;
- }
- return(0);
-
- fail:
- free(idev);
- return(err);
+ return(err);
}
char *
uboot_fmtdev(void *vdev)
{
- struct uboot_devdesc *dev = (struct uboot_devdesc *)vdev;
- static char buf[128]; /* XXX device length constant? */
- char *cp;
-
- switch(dev->d_type) {
- case DEVT_NONE:
- strcpy(buf, "(no device)");
- break;
-
- case DEVT_DISK:
- cp = buf;
- cp += sprintf(cp, "%s%d", dev->d_dev->dv_name, dev->d_unit);
- if (dev->d_kind.disk.slice > 0)
- cp += sprintf(cp, "s%d", dev->d_kind.disk.slice);
- if (dev->d_kind.disk.partition >= 0)
- cp += sprintf(cp, "%c", dev->d_kind.disk.partition + 'a');
- strcat(cp, ":");
- break;
-
- case DEVT_NET:
- sprintf(buf, "%s%d:", dev->d_dev->dv_name, dev->d_unit);
- break;
- }
- return(buf);
+ struct uboot_devdesc *dev = (struct uboot_devdesc *)vdev;
+ char *cp;
+ static char buf[128]; /* XXX device length constant? */
+
+ switch(dev->d_type) {
+ case DEVT_NONE:
+ strcpy(buf, "(no device)");
+ break;
+
+ case DEVT_DISK:
+ cp = buf;
+ cp += sprintf(cp, "%s%d", dev->d_dev->dv_name, dev->d_unit);
+ if (dev->d_kind.disk.slice > 0)
+ cp += sprintf(cp, "s%d", dev->d_kind.disk.slice);
+ if (dev->d_kind.disk.partition >= 0)
+ cp += sprintf(cp, "%c", dev->d_kind.disk.partition +
+ 'a');
+ strcat(cp, ":");
+ break;
+
+ case DEVT_NET:
+ sprintf(buf, "%s%d:", dev->d_dev->dv_name, dev->d_unit);
+ break;
+ }
+ return(buf);
}
/*
- * Set currdev to suit the value being supplied in (value)
+ * Set currdev to suit the value being supplied in (value).
*/
int
uboot_setcurrdev(struct env_var *ev, int flags, const void *value)
{
- struct uboot_devdesc *ncurr;
- int rv;
-
- if ((rv = uboot_parsedev(&ncurr, value, NULL)) != 0)
- return(rv);
- free(ncurr);
- env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
- return(0);
+ struct uboot_devdesc *ncurr;
+ int rv;
+
+ if ((rv = uboot_parsedev(&ncurr, value, NULL)) != 0)
+ return(rv);
+ free(ncurr);
+ env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
+ return(0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-01 00:08:25 +0000