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15#include <linux/gfp.h>
16#include <linux/ptrace.h>
17
18#include "include/audit.h"
19#include "include/capability.h"
20#include "include/context.h"
21#include "include/policy.h"
22#include "include/ipc.h"
23
24
25static void audit_cb(struct audit_buffer *ab, void *va)
26{
27 struct common_audit_data *sa = va;
28 audit_log_format(ab, " target=");
29 audit_log_untrustedstring(ab, sa->aad->target);
30}
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40static int aa_audit_ptrace(struct aa_profile *profile,
41 struct aa_profile *target, int error)
42{
43 struct common_audit_data sa;
44 struct apparmor_audit_data aad = {0,};
45 sa.type = LSM_AUDIT_DATA_NONE;
46 sa.aad = &aad;
47 aad.op = OP_PTRACE;
48 aad.target = target;
49 aad.error = error;
50
51 return aa_audit(AUDIT_APPARMOR_AUTO, profile, GFP_ATOMIC, &sa,
52 audit_cb);
53}
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63int aa_may_ptrace(struct aa_profile *tracer, struct aa_profile *tracee,
64 unsigned int mode)
65{
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71 if (unconfined(tracer) || tracer == tracee)
72 return 0;
73
74 return aa_capable(tracer, CAP_SYS_PTRACE, 1);
75}
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84
85int aa_ptrace(struct task_struct *tracer, struct task_struct *tracee,
86 unsigned int mode)
87{
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97 struct aa_profile *tracer_p = aa_get_task_profile(tracer);
98 int error = 0;
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100 if (!unconfined(tracer_p)) {
101 struct aa_profile *tracee_p = aa_get_task_profile(tracee);
102
103 error = aa_may_ptrace(tracer_p, tracee_p, mode);
104 error = aa_audit_ptrace(tracer_p, tracee_p, error);
105
106 aa_put_profile(tracee_p);
107 }
108 aa_put_profile(tracer_p);
109
110 return error;
111}
112