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15#include <linux/audit.h>
16#include <linux/socket.h>
17
18#include "include/apparmor.h"
19#include "include/audit.h"
20#include "include/policy.h"
21
22const char *const op_table[] = {
23 "null",
24
25 "sysctl",
26 "capable",
27
28 "unlink",
29 "mkdir",
30 "rmdir",
31 "mknod",
32 "truncate",
33 "link",
34 "symlink",
35 "rename_src",
36 "rename_dest",
37 "chmod",
38 "chown",
39 "getattr",
40 "open",
41
42 "file_perm",
43 "file_lock",
44 "file_mmap",
45 "file_mprotect",
46
47 "create",
48 "post_create",
49 "bind",
50 "connect",
51 "listen",
52 "accept",
53 "sendmsg",
54 "recvmsg",
55 "getsockname",
56 "getpeername",
57 "getsockopt",
58 "setsockopt",
59 "socket_shutdown",
60
61 "ptrace",
62
63 "exec",
64 "change_hat",
65 "change_profile",
66 "change_onexec",
67
68 "setprocattr",
69 "setrlimit",
70
71 "profile_replace",
72 "profile_load",
73 "profile_remove"
74};
75
76const char *const audit_mode_names[] = {
77 "normal",
78 "quiet_denied",
79 "quiet",
80 "noquiet",
81 "all"
82};
83
84static const char *const aa_audit_type[] = {
85 "AUDIT",
86 "ALLOWED",
87 "DENIED",
88 "HINT",
89 "STATUS",
90 "ERROR",
91 "KILLED"
92 "AUTO"
93};
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111static void audit_pre(struct audit_buffer *ab, void *ca)
112{
113 struct common_audit_data *sa = ca;
114 struct task_struct *tsk = sa->tsk ? sa->tsk : current;
115
116 if (aa_g_audit_header) {
117 audit_log_format(ab, "apparmor=");
118 audit_log_string(ab, aa_audit_type[sa->aad->type]);
119 }
120
121 if (sa->aad->op) {
122 audit_log_format(ab, " operation=");
123 audit_log_string(ab, op_table[sa->aad->op]);
124 }
125
126 if (sa->aad->info) {
127 audit_log_format(ab, " info=");
128 audit_log_string(ab, sa->aad->info);
129 if (sa->aad->error)
130 audit_log_format(ab, " error=%d", sa->aad->error);
131 }
132
133 if (sa->aad->profile) {
134 struct aa_profile *profile = sa->aad->profile;
135 pid_t pid;
136 rcu_read_lock();
137 pid = rcu_dereference(tsk->real_parent)->pid;
138 rcu_read_unlock();
139 audit_log_format(ab, " parent=%d", pid);
140 if (profile->ns != root_ns) {
141 audit_log_format(ab, " namespace=");
142 audit_log_untrustedstring(ab, profile->ns->base.hname);
143 }
144 audit_log_format(ab, " profile=");
145 audit_log_untrustedstring(ab, profile->base.hname);
146 }
147
148 if (sa->aad->name) {
149 audit_log_format(ab, " name=");
150 audit_log_untrustedstring(ab, sa->aad->name);
151 }
152}
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158
159void aa_audit_msg(int type, struct common_audit_data *sa,
160 void (*cb) (struct audit_buffer *, void *))
161{
162 sa->aad->type = type;
163 common_lsm_audit(sa, audit_pre, cb);
164}
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178int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
179 struct common_audit_data *sa,
180 void (*cb) (struct audit_buffer *, void *))
181{
182 BUG_ON(!profile);
183
184 if (type == AUDIT_APPARMOR_AUTO) {
185 if (likely(!sa->aad->error)) {
186 if (AUDIT_MODE(profile) != AUDIT_ALL)
187 return 0;
188 type = AUDIT_APPARMOR_AUDIT;
189 } else if (COMPLAIN_MODE(profile))
190 type = AUDIT_APPARMOR_ALLOWED;
191 else
192 type = AUDIT_APPARMOR_DENIED;
193 }
194 if (AUDIT_MODE(profile) == AUDIT_QUIET ||
195 (type == AUDIT_APPARMOR_DENIED &&
196 AUDIT_MODE(profile) == AUDIT_QUIET))
197 return sa->aad->error;
198
199 if (KILL_MODE(profile) && type == AUDIT_APPARMOR_DENIED)
200 type = AUDIT_APPARMOR_KILL;
201
202 if (!unconfined(profile))
203 sa->aad->profile = profile;
204
205 aa_audit_msg(type, sa, cb);
206
207 if (sa->aad->type == AUDIT_APPARMOR_KILL)
208 (void)send_sig_info(SIGKILL, NULL, sa->tsk ? sa->tsk : current);
209
210 if (sa->aad->type == AUDIT_APPARMOR_ALLOWED)
211 return complain_error(sa->aad->error);
212
213 return sa->aad->error;
214}
215