ID tracker: implement vpid/uid/vuid/gid/vgid trackers

[lttng-modules.git] / probes / lttng-tracepoint-event-impl.h

diff --git a/probes/lttng-tracepoint-event-impl.h b/probes/lttng-tracepoint-event-impl.h
index 3fe9d995cf310bbc9d15b794b92892dd475c9afd..39454fb3d9c13d68fc4648aa135a1aacd224bb80 100644 (file)
--- a/probes/lttng-tracepoint-event-impl.h
+++ b/probes/lttng-tracepoint-event-impl.h
@@ -11,6 +11,7 @@
 #include <linux/rculist.h>
 #include <asm/byteorder.h>
 #include <linux/swab.h>
+#include <linux/uidgid.h>
 
 #include <probes/lttng.h>
 #include <probes/lttng-types.h>
@@ -1127,7 +1128,7 @@ static void __event_probe__##_name(void *__data, _proto)                \
        struct probe_local_vars __tp_locvar;                                  \
        struct probe_local_vars *tp_locvar __attribute__((unused)) =          \
                        &__tp_locvar;                                         \
-       struct lttng_pid_tracker *__lpf;                                      \
+       struct lttng_id_tracker_rcu *__lf;                                    \
                                                                              \
        if (!_TP_SESSION_CHECK(session, __session))                           \
                return;                                                       \
@@ -1137,8 +1138,27 @@ static void __event_probe__##_name(void *__data, _proto)               \
                return;                                                       \
        if (unlikely(!READ_ONCE(__event->enabled)))                           \
                return;                                                       \
-       __lpf = lttng_rcu_dereference(__session->pid_tracker);                \
-       if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->tgid))) \
+       __lf = lttng_rcu_dereference(__session->pid_tracker.p);               \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf, current->tgid)))    \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->vpid_tracker.p);              \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf, task_tgid_vnr(current)))) \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->uid_tracker.p);               \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kuid(&init_user_ns, current_uid()))))            \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->vuid_tracker.p);              \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kuid(current_user_ns(), current_uid()))))        \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->gid_tracker.p);               \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kgid(&init_user_ns, current_gid()))))            \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->vgid_tracker.p);              \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kgid(current_user_ns(), current_gid()))))        \
                return;                                                       \
        __orig_dynamic_len_offset = this_cpu_ptr(&lttng_dynamic_len_stack)->offset; \
        __dynamic_len_idx = __orig_dynamic_len_offset;                        \
@@ -1201,7 +1221,7 @@ static void __event_probe__##_name(void *__data)                        \
        struct probe_local_vars __tp_locvar;                                  \
        struct probe_local_vars *tp_locvar __attribute__((unused)) =          \
                        &__tp_locvar;                                         \
-       struct lttng_pid_tracker *__lpf;                                      \
+       struct lttng_id_tracker_rcu *__lf;                                    \
                                                                              \
        if (!_TP_SESSION_CHECK(session, __session))                           \
                return;                                                       \
@@ -1211,8 +1231,27 @@ static void __event_probe__##_name(void *__data)                       \
                return;                                                       \
        if (unlikely(!READ_ONCE(__event->enabled)))                           \
                return;                                                       \
-       __lpf = lttng_rcu_dereference(__session->pid_tracker);                \
-       if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->tgid)))  \
+       __lf = lttng_rcu_dereference(__session->pid_tracker.p);               \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf, current->tgid)))    \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->vpid_tracker.p);              \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf, task_tgid_vnr(current)))) \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->uid_tracker.p);               \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kuid(&init_user_ns, current_uid()))))            \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->vuid_tracker.p);              \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kuid(current_user_ns(), current_uid()))))        \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->gid_tracker.p);               \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kgid(&init_user_ns, current_gid()))))            \
+               return;                                                       \
+       __lf = lttng_rcu_dereference(__session->vgid_tracker.p);              \
+       if (__lf && likely(!lttng_id_tracker_lookup(__lf,                     \
+                       from_kgid(current_user_ns(), current_gid()))))        \
                return;                                                       \
        __orig_dynamic_len_offset = this_cpu_ptr(&lttng_dynamic_len_stack)->offset; \
        __dynamic_len_idx = __orig_dynamic_len_offset;                        \