diff options
Diffstat (limited to 'security/apparmor')
| -rw-r--r-- | security/apparmor/audit.c | 14 | ||||
| -rw-r--r-- | security/apparmor/capability.c | 15 | ||||
| -rw-r--r-- | security/apparmor/domain.c | 16 | ||||
| -rw-r--r-- | security/apparmor/include/audit.h | 1 | ||||
| -rw-r--r-- | security/apparmor/include/capability.h | 5 | ||||
| -rw-r--r-- | security/apparmor/include/ipc.h | 4 | ||||
| -rw-r--r-- | security/apparmor/ipc.c | 9 | ||||
| -rw-r--r-- | security/apparmor/lsm.c | 2 |
8 files changed, 22 insertions, 44 deletions
diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c index 031d2d9dd695..89c78658031f 100644 --- a/security/apparmor/audit.c +++ b/security/apparmor/audit.c @@ -111,7 +111,6 @@ static const char *const aa_audit_type[] = { static void audit_pre(struct audit_buffer *ab, void *ca) { struct common_audit_data *sa = ca; - struct task_struct *tsk = sa->aad->tsk ? sa->aad->tsk : current; if (aa_g_audit_header) { audit_log_format(ab, "apparmor="); @@ -132,11 +131,6 @@ static void audit_pre(struct audit_buffer *ab, void *ca) if (sa->aad->profile) { struct aa_profile *profile = sa->aad->profile; - pid_t pid; - rcu_read_lock(); - pid = rcu_dereference(tsk->real_parent)->pid; - rcu_read_unlock(); - audit_log_format(ab, " parent=%d", pid); if (profile->ns != root_ns) { audit_log_format(ab, " namespace="); audit_log_untrustedstring(ab, profile->ns->base.hname); @@ -149,12 +143,6 @@ static void audit_pre(struct audit_buffer *ab, void *ca) audit_log_format(ab, " name="); audit_log_untrustedstring(ab, sa->aad->name); } - - if (sa->aad->tsk) { - audit_log_format(ab, " pid=%d comm=", tsk->pid); - audit_log_untrustedstring(ab, tsk->comm); - } - } /** @@ -212,7 +200,7 @@ int aa_audit(int type, struct aa_profile *profile, gfp_t gfp, if (sa->aad->type == AUDIT_APPARMOR_KILL) (void)send_sig_info(SIGKILL, NULL, - sa->aad->tsk ? sa->aad->tsk : current); + sa->u.tsk ? sa->u.tsk : current); if (sa->aad->type == AUDIT_APPARMOR_ALLOWED) return complain_error(sa->aad->error); diff --git a/security/apparmor/capability.c b/security/apparmor/capability.c index 84d1f5f53877..1101c6f64bb7 100644 --- a/security/apparmor/capability.c +++ b/security/apparmor/capability.c @@ -53,8 +53,7 @@ static void audit_cb(struct audit_buffer *ab, void *va) /** * audit_caps - audit a capability - * @profile: profile confining task (NOT NULL) - * @task: task capability test was performed against (NOT NULL) + * @profile: profile being tested for confinement (NOT NULL) * @cap: capability tested * @error: error code returned by test * @@ -63,8 +62,7 @@ static void audit_cb(struct audit_buffer *ab, void *va) * * Returns: 0 or sa->error on success, error code on failure */ -static int audit_caps(struct aa_profile *profile, struct task_struct *task, - int cap, int error) +static int audit_caps(struct aa_profile *profile, int cap, int error) { struct audit_cache *ent; int type = AUDIT_APPARMOR_AUTO; @@ -73,7 +71,6 @@ static int audit_caps(struct aa_profile *profile, struct task_struct *task, sa.type = LSM_AUDIT_DATA_CAP; sa.aad = &aad; sa.u.cap = cap; - sa.aad->tsk = task; sa.aad->op = OP_CAPABLE; sa.aad->error = error; @@ -124,8 +121,7 @@ static int profile_capable(struct aa_profile *profile, int cap) /** * aa_capable - test permission to use capability - * @task: task doing capability test against (NOT NULL) - * @profile: profile confining @task (NOT NULL) + * @profile: profile being tested against (NOT NULL) * @cap: capability to be tested * @audit: whether an audit record should be generated * @@ -133,8 +129,7 @@ static int profile_capable(struct aa_profile *profile, int cap) * * Returns: 0 on success, or else an error code. */ -int aa_capable(struct task_struct *task, struct aa_profile *profile, int cap, - int audit) +int aa_capable(struct aa_profile *profile, int cap, int audit) { int error = profile_capable(profile, cap); @@ -144,5 +139,5 @@ int aa_capable(struct task_struct *task, struct aa_profile *profile, int cap, return error; } - return audit_caps(profile, task, cap, error); + return audit_caps(profile, cap, error); } diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c index 26c607c971f5..452567d3a08e 100644 --- a/security/apparmor/domain.c +++ b/security/apparmor/domain.c @@ -50,23 +50,21 @@ void aa_free_domain_entries(struct aa_domain *domain) /** * may_change_ptraced_domain - check if can change profile on ptraced task - * @task: task we want to change profile of (NOT NULL) * @to_profile: profile to change to (NOT NULL) * - * Check if the task is ptraced and if so if the tracing task is allowed + * Check if current is ptraced and if so if the tracing task is allowed * to trace the new domain * * Returns: %0 or error if change not allowed */ -static int may_change_ptraced_domain(struct task_struct *task, - struct aa_profile *to_profile) +static int may_change_ptraced_domain(struct aa_profile *to_profile) { struct task_struct *tracer; struct aa_profile *tracerp = NULL; int error = 0; rcu_read_lock(); - tracer = ptrace_parent(task); + tracer = ptrace_parent(current); if (tracer) /* released below */ tracerp = aa_get_task_profile(tracer); @@ -75,7 +73,7 @@ static int may_change_ptraced_domain(struct task_struct *task, if (!tracer || unconfined(tracerp)) goto out; - error = aa_may_ptrace(tracer, tracerp, to_profile, PTRACE_MODE_ATTACH); + error = aa_may_ptrace(tracerp, to_profile, PTRACE_MODE_ATTACH); out: rcu_read_unlock(); @@ -477,7 +475,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm) } if (bprm->unsafe & (LSM_UNSAFE_PTRACE | LSM_UNSAFE_PTRACE_CAP)) { - error = may_change_ptraced_domain(current, new_profile); + error = may_change_ptraced_domain(new_profile); if (error) { aa_put_profile(new_profile); goto audit; @@ -690,7 +688,7 @@ int aa_change_hat(const char *hats[], int count, u64 token, bool permtest) } } - error = may_change_ptraced_domain(current, hat); + error = may_change_ptraced_domain(hat); if (error) { info = "ptraced"; error = -EPERM; @@ -829,7 +827,7 @@ int aa_change_profile(const char *ns_name, const char *hname, bool onexec, } /* check if tracing task is allowed to trace target domain */ - error = may_change_ptraced_domain(current, target); + error = may_change_ptraced_domain(target); if (error) { info = "ptrace prevents transition"; goto audit; diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h index 30e8d7687259..ba3dfd17f23f 100644 --- a/security/apparmor/include/audit.h +++ b/security/apparmor/include/audit.h @@ -109,7 +109,6 @@ struct apparmor_audit_data { void *profile; const char *name; const char *info; - struct task_struct *tsk; union { void *target; struct { diff --git a/security/apparmor/include/capability.h b/security/apparmor/include/capability.h index 2e7c9d6a2f3b..fc3fa381d850 100644 --- a/security/apparmor/include/capability.h +++ b/security/apparmor/include/capability.h @@ -4,7 +4,7 @@ * This file contains AppArmor capability mediation definitions. * * Copyright (C) 1998-2008 Novell/SUSE - * Copyright 2009-2010 Canonical Ltd. + * Copyright 2009-2013 Canonical Ltd. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -38,8 +38,7 @@ struct aa_caps { extern struct aa_fs_entry aa_fs_entry_caps[]; -int aa_capable(struct task_struct *task, struct aa_profile *profile, int cap, - int audit); +int aa_capable(struct aa_profile *profile, int cap, int audit); static inline void aa_free_cap_rules(struct aa_caps *caps) { diff --git a/security/apparmor/include/ipc.h b/security/apparmor/include/ipc.h index aeda0fbc8b2f..288ca76e2fb1 100644 --- a/security/apparmor/include/ipc.h +++ b/security/apparmor/include/ipc.h @@ -19,8 +19,8 @@ struct aa_profile; -int aa_may_ptrace(struct task_struct *tracer_task, struct aa_profile *tracer, - struct aa_profile *tracee, unsigned int mode); +int aa_may_ptrace(struct aa_profile *tracer, struct aa_profile *tracee, + unsigned int mode); int aa_ptrace(struct task_struct *tracer, struct task_struct *tracee, unsigned int mode); diff --git a/security/apparmor/ipc.c b/security/apparmor/ipc.c index c51d2266587e..777ac1c47253 100644 --- a/security/apparmor/ipc.c +++ b/security/apparmor/ipc.c @@ -54,15 +54,14 @@ static int aa_audit_ptrace(struct aa_profile *profile, /** * aa_may_ptrace - test if tracer task can trace the tracee - * @tracer_task: task who will do the tracing (NOT NULL) * @tracer: profile of the task doing the tracing (NOT NULL) * @tracee: task to be traced * @mode: whether PTRACE_MODE_READ || PTRACE_MODE_ATTACH * * Returns: %0 else error code if permission denied or error */ -int aa_may_ptrace(struct task_struct *tracer_task, struct aa_profile *tracer, - struct aa_profile *tracee, unsigned int mode) +int aa_may_ptrace(struct aa_profile *tracer, struct aa_profile *tracee, + unsigned int mode) { /* TODO: currently only based on capability, not extended ptrace * rules, @@ -72,7 +71,7 @@ int aa_may_ptrace(struct task_struct *tracer_task, struct aa_profile *tracer, if (unconfined(tracer) || tracer == tracee) return 0; /* log this capability request */ - return aa_capable(tracer_task, tracer, CAP_SYS_PTRACE, 1); + return aa_capable(tracer, CAP_SYS_PTRACE, 1); } /** @@ -101,7 +100,7 @@ int aa_ptrace(struct task_struct *tracer, struct task_struct *tracee, if (!unconfined(tracer_p)) { struct aa_profile *tracee_p = aa_get_task_profile(tracee); - error = aa_may_ptrace(tracer, tracer_p, tracee_p, mode); + error = aa_may_ptrace(tracer_p, tracee_p, mode); error = aa_audit_ptrace(tracer_p, tracee_p, error); aa_put_profile(tracee_p); diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index fb99e18123b4..4257b7e2796b 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -145,7 +145,7 @@ static int apparmor_capable(const struct cred *cred, struct user_namespace *ns, if (!error) { profile = aa_cred_profile(cred); if (!unconfined(profile)) - error = aa_capable(current, profile, cap, audit); + error = aa_capable(profile, cap, audit); } return error; } |
