From a6f233003b1af70132619bca386dfae1862a45e8 Mon Sep 17 00:00:00 2001 From: John Johansen Date: Mon, 16 Jan 2017 00:42:49 -0800 Subject: apparmor: allow specifying the profile doing the management Signed-off-by: John Johansen --- security/apparmor/policy.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index 0314faeacccd..0125de6061fd 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -582,6 +582,7 @@ static int replacement_allowed(struct aa_profile *profile, int noreplace, /** * aa_audit_policy - Do auditing of policy changes + * @profile: profile to check if it can manage policy * @op: policy operation being performed * @gfp: memory allocation flags * @name: name of profile being manipulated (NOT NULL) @@ -590,8 +591,8 @@ static int replacement_allowed(struct aa_profile *profile, int noreplace, * * Returns: the error to be returned after audit is done */ -static int audit_policy(int op, gfp_t gfp, const char *name, const char *info, - int error) +static int audit_policy(struct aa_profile *profile, int op, gfp_t gfp, + const char *name, const char *info, int error) { struct common_audit_data sa; struct apparmor_audit_data aad = {0,}; @@ -602,7 +603,7 @@ static int audit_policy(int op, gfp_t gfp, const char *name, const char *info, aad.info = info; aad.error = error; - return aa_audit(AUDIT_APPARMOR_STATUS, __aa_current_profile(), gfp, + return aa_audit(AUDIT_APPARMOR_STATUS, profile, gfp, &sa, NULL); } @@ -632,12 +633,14 @@ bool aa_may_manage_policy(int op) { /* check if loading policy is locked out */ if (aa_g_lock_policy) { - audit_policy(op, GFP_KERNEL, NULL, "policy_locked", -EACCES); + audit_policy(__aa_current_profile(), op, GFP_KERNEL, NULL, + "policy_locked", -EACCES); return 0; } if (!policy_admin_capable()) { - audit_policy(op, GFP_KERNEL, NULL, "not policy admin", -EACCES); + audit_policy(__aa_current_profile(), op, GFP_KERNEL, NULL, + "not policy admin", -EACCES); return 0; } @@ -762,6 +765,7 @@ static int __lookup_replace(struct aa_ns *ns, const char *hname, /** * aa_replace_profiles - replace profile(s) on the profile list * @view: namespace load is viewed from + * @profile: profile that is attempting to load/replace policy * @udata: serialized data stream (NOT NULL) * @size: size of the serialized data stream * @noreplace: true if only doing addition, no replacement allowed @@ -790,7 +794,8 @@ ssize_t aa_replace_profiles(struct aa_ns *view, void *udata, size_t size, /* released below */ ns = aa_prepare_ns(view, ns_name); if (!ns) { - error = audit_policy(op, GFP_KERNEL, ns_name, + error = audit_policy(__aa_current_profile(), op, GFP_KERNEL, + ns_name, "failed to prepare namespace", -ENOMEM); goto free; } @@ -867,7 +872,8 @@ ssize_t aa_replace_profiles(struct aa_ns *view, void *udata, size_t size, list_del_init(&ent->list); op = (!ent->old && !ent->rename) ? OP_PROF_LOAD : OP_PROF_REPL; - audit_policy(op, GFP_ATOMIC, ent->new->base.hname, NULL, error); + audit_policy(__aa_current_profile(), op, GFP_ATOMIC, + ent->new->base.hname, NULL, error); if (ent->old) { __replace_profile(ent->old, ent->new, 1); @@ -921,7 +927,8 @@ fail_lock: /* audit cause of failure */ op = (!ent->old) ? OP_PROF_LOAD : OP_PROF_REPL; - audit_policy(op, GFP_KERNEL, ent->new->base.hname, info, error); + audit_policy(__aa_current_profile(), op, GFP_KERNEL, + ent->new->base.hname, info, error); /* audit status that rest of profiles in the atomic set failed too */ info = "valid profile in failed atomic policy load"; list_for_each_entry(tmp, &lh, list) { @@ -931,7 +938,8 @@ fail_lock: continue; } op = (!ent->old) ? OP_PROF_LOAD : OP_PROF_REPL; - audit_policy(op, GFP_KERNEL, tmp->new->base.hname, info, error); + audit_policy(__aa_current_profile(), op, GFP_KERNEL, + tmp->new->base.hname, info, error); } free: list_for_each_entry_safe(ent, tmp, &lh, list) { @@ -1004,7 +1012,8 @@ ssize_t aa_remove_profiles(struct aa_ns *view, char *fqname, size_t size) } /* don't fail removal if audit fails */ - (void) audit_policy(OP_PROF_RM, GFP_KERNEL, name, info, error); + (void) audit_policy(__aa_current_profile(), OP_PROF_RM, GFP_KERNEL, + name, info, error); aa_put_ns(ns); aa_put_profile(profile); return size; @@ -1014,6 +1023,7 @@ fail_ns_lock: aa_put_ns(ns); fail: - (void) audit_policy(OP_PROF_RM, GFP_KERNEL, name, info, error); + (void) audit_policy(__aa_current_profile(), OP_PROF_RM, GFP_KERNEL, + name, info, error); return error; } -- cgit