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Handle geli-encrypted root disk devices.

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MFC after:	2 weeks
This commit is contained in:
Brian Somers 2010-09-06 04:15:49 +00:00
parent cb4a1047ce
commit 1dc7e010ec
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=212247
1 changed files with 7 additions and 2 deletions
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9
sbin/fdisk/fdisk.c
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@ -1461,6 +1461,7 @@ sanitize_partition(struct dos_partition *partp)
* /dev/ad0s1a => /dev/ad0
* /dev/da0a => /dev/da0
* /dev/vinum/root => /dev/vinum/root
* A ".eli" part is removed if it exists (see geli(8)).
*/
static char *
get_rootdisk(void)
@ -1469,7 +1470,7 @@ get_rootdisk(void)
regex_t re;
#define NMATCHES 2
regmatch_t rm[NMATCHES];
char *s;
char dev[PATH_MAX], *s;
int rv;
if (statfs("/", &rootfs) == -1)
@ -1478,7 +1479,11 @@ get_rootdisk(void)
if ((rv = regcomp(&re, "^(/dev/[a-z/]+[0-9]+)([sp][0-9]+)?[a-h]?$",
REG_EXTENDED)) != 0)
errx(1, "regcomp() failed (%d)", rv);
if ((rv = regexec(&re, rootfs.f_mntfromname, NMATCHES, rm, 0)) != 0)
strlcpy(dev, rootfs.f_mntfromname, sizeof (dev));
if ((s = strstr(dev, ".eli")) != NULL)
memmove(s, s+4, strlen(s + 4) + 1);
if ((rv = regexec(&re, dev, NMATCHES, rm, 0)) != 0)
errx(1,
"mounted root fs resource doesn't match expectations (regexec returned %d)",
rv);