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Groups > linux.kernel > #1465698
| From | Richard Guy Briggs <rgb@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH V3 1/3] audit: add support for session ID user filter |
| Date | 2016-08-19 03:10 +0200 |
| Message-ID | <s7GtP-7go-1@gated-at.bofh.it> (permalink) |
| References | <s7Gau-6Ui-33@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Define AUDIT_SESSIONID in the uapi and add support for specifying user filters based on the session ID. https://github.com/linux-audit/audit-kernel/issues/4 RFE: add a session ID filter to the kernel's user filter Signed-off-by: Richard Guy Briggs <rgb@redhat.com> --- include/uapi/linux/audit.h | 1 + kernel/auditfilter.c | 2 ++ kernel/auditsc.c | 5 +++++ 3 files changed, 8 insertions(+), 0 deletions(-) diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index d820aa9..b3140eb 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -252,6 +252,7 @@ #define AUDIT_OBJ_LEV_LOW 22 #define AUDIT_OBJ_LEV_HIGH 23 #define AUDIT_LOGINUID_SET 24 +#define AUDIT_SESSIONID 25 /* Session ID */ /* These are ONLY useful when checking * at syscall exit time (AUDIT_AT_EXIT). */ diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index 85d9cac..1c60fcf 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -363,6 +363,7 @@ static int audit_field_valid(struct audit_entry *entry, struct audit_field *f) case AUDIT_EXIT: case AUDIT_SUCCESS: case AUDIT_INODE: + case AUDIT_SESSIONID: /* bit ops are only useful on syscall args */ if (f->op == Audit_bitmask || f->op == Audit_bittest) return -EINVAL; @@ -476,6 +477,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data, if (!gid_valid(f->gid)) goto exit_free; break; + case AUDIT_SESSIONID: case AUDIT_ARCH: entry->rule.arch_f = f; break; diff --git a/kernel/auditsc.c b/kernel/auditsc.c index c65af21..52f7a61 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -447,6 +447,7 @@ static int audit_filter_rules(struct task_struct *tsk, const struct cred *cred; int i, need_sid = 1; u32 sid; + unsigned int sessionid; cred = rcu_dereference_check(tsk->cred, tsk == current || task_creation); @@ -509,6 +510,10 @@ static int audit_filter_rules(struct task_struct *tsk, case AUDIT_FSGID: result = audit_gid_comparator(cred->fsgid, f->op, f->gid); break; + case AUDIT_SESSIONID: + sessionid = audit_get_sessionid(current); + result = audit_comparator(sessionid, f->op, f->val); + break; case AUDIT_PERS: result = audit_comparator(tsk->personality, f->op, f->val); break; -- 1.7.1
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[PATCH V3 0/3] Add support for session ID user filtering Richard Guy Briggs <rgb@redhat.com> - 2016-08-19 03:00 +0200 [PATCH V3 1/3] audit: add support for session ID user filter Richard Guy Briggs <rgb@redhat.com> - 2016-08-19 03:10 +0200 [PATCH V3 2/3] audit: add AUDIT_SESSIONID_SET support Richard Guy Briggs <rgb@redhat.com> - 2016-08-19 04:20 +0200
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