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Allow reading the following sysctl MIBs in capability mode:

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kern.hostname, kern.domainname, and kern.hostuuid

This allows sandboxed applications to read these sysctls

Submitted by:	cem (original version)
Reviewed by:	cem, jonathan, rwatson (original version)
Sponsored by:	ScaleEngine Inc.
Differential Revision:	https://reviews.freebsd.org/D8015
This commit is contained in:
Allan Jude 2016-09-29 16:29:49 +00:00
parent bdff61f849
commit 0176ca2ed5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=306452
1 changed files with 3 additions and 3 deletions
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6
sys/kern/kern_mib.c
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@ -316,15 +316,15 @@ sysctl_hostname(SYSCTL_HANDLER_ARGS)
}
SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
(void *)(offsetof(struct prison, pr_hostname)), MAXHOSTNAMELEN,
sysctl_hostname, "A", "Hostname");
SYSCTL_PROC(_kern, KERN_NISDOMAINNAME, domainname,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
(void *)(offsetof(struct prison, pr_domainname)), MAXHOSTNAMELEN,
sysctl_hostname, "A", "Name of the current YP/NIS domain");
SYSCTL_PROC(_kern, KERN_HOSTUUID, hostuuid,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE,
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE,
(void *)(offsetof(struct prison, pr_hostuuid)), HOSTUUIDLEN,
sysctl_hostname, "A", "Host UUID");