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Sync to trustedbsd_mac tree: default to sigsegv rather than copy-on-write

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during a label change resulting in an mmap removal.  This is "fail stop"
behavior, which is preferred, although it offers slightly less
transparency.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
This commit is contained in:
Robert Watson 2002-08-15 02:28:32 +00:00
parent b618bb96f0
commit 99fa64f863
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=101892
9 changed files with 9 additions and 9 deletions
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2
sys/kern/kern_mac.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_framework.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_internal.h
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_net.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_pipe.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_process.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_syscalls.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_system.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");

2
sys/security/mac/mac_vfs.c
View file

@ -162,7 +162,7 @@ SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD,
static int mac_vnode_label_cache_misses = 0;
SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD,
&mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels");
static int mac_mmap_revocation_via_cow = 1;
static int mac_mmap_revocation_via_cow = 0;
SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW,
&mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via "
"copy-on-write semantics, or by removing all write access");