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| author | NeilBrown <neilb@suse.de> | 2015-03-23 13:37:39 +1100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-11 08:13:11 -0400 |
| commit | 7b20ea2579238f5e0da4bc93276c1b63c960c9ef (patch) | |
| tree | 6566fc4c7e9bed18a52750e54e89307512ba401a | |
| parent | 181548c05147154605711f3b1cf863267b5b8f7a (diff) | |
| download | linux-7b20ea2579238f5e0da4bc93276c1b63c960c9ef.tar.gz linux-7b20ea2579238f5e0da4bc93276c1b63c960c9ef.tar.bz2 linux-7b20ea2579238f5e0da4bc93276c1b63c960c9ef.zip | |
security/selinux: pass 'flags' arg to avc_audit() and avc_has_perm_flags()
This allows MAY_NOT_BLOCK to be passed, in RCU-walk mode, through
the new avc_has_perm_flags() to avc_audit() and thence the slow_avc_audit.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | security/selinux/avc.c | 18 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 2 | ||||
| -rw-r--r-- | security/selinux/include/avc.h | 9 |
3 files changed, 25 insertions, 4 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c index 3c17dda9571d..0b122b1421a9 100644 --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -761,7 +761,23 @@ int avc_has_perm(u32 ssid, u32 tsid, u16 tclass, rc = avc_has_perm_noaudit(ssid, tsid, tclass, requested, 0, &avd); - rc2 = avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata); + rc2 = avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata, 0); + if (rc2) + return rc2; + return rc; +} + +int avc_has_perm_flags(u32 ssid, u32 tsid, u16 tclass, + u32 requested, struct common_audit_data *auditdata, + int flags) +{ + struct av_decision avd; + int rc, rc2; + + rc = avc_has_perm_noaudit(ssid, tsid, tclass, requested, 0, &avd); + + rc2 = avc_audit(ssid, tsid, tclass, requested, &avd, rc, + auditdata, flags); if (rc2) return rc2; return rc; diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 801622947282..d56a82967d5e 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1564,7 +1564,7 @@ static int cred_has_capability(const struct cred *cred, rc = avc_has_perm_noaudit(sid, sid, sclass, av, 0, &avd); if (audit == SECURITY_CAP_AUDIT) { - int rc2 = avc_audit(sid, sid, sclass, av, &avd, rc, &ad); + int rc2 = avc_audit(sid, sid, sclass, av, &avd, rc, &ad, 0); if (rc2) return rc2; } diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h index ddf8eec03f21..5973c327c54e 100644 --- a/security/selinux/include/avc.h +++ b/security/selinux/include/avc.h @@ -130,7 +130,8 @@ static inline int avc_audit(u32 ssid, u32 tsid, u16 tclass, u32 requested, struct av_decision *avd, int result, - struct common_audit_data *a) + struct common_audit_data *a, + int flags) { u32 audited, denied; audited = avc_audit_required(requested, avd, result, 0, &denied); @@ -138,7 +139,7 @@ static inline int avc_audit(u32 ssid, u32 tsid, return 0; return slow_avc_audit(ssid, tsid, tclass, requested, audited, denied, result, - a, 0); + a, flags); } #define AVC_STRICT 1 /* Ignore permissive mode. */ @@ -150,6 +151,10 @@ int avc_has_perm_noaudit(u32 ssid, u32 tsid, int avc_has_perm(u32 ssid, u32 tsid, u16 tclass, u32 requested, struct common_audit_data *auditdata); +int avc_has_perm_flags(u32 ssid, u32 tsid, + u16 tclass, u32 requested, + struct common_audit_data *auditdata, + int flags); u32 avc_policy_seqno(void); |