Cleanup: implement dedicated file operations for events and enablers
[lttng-modules.git] / src / lttng-abi.c
index 88c92d91e0fd4d336c59ecdc371be25c1843d205..9f06295ffa6981d9de6bf4182f8d57be74c825f9 100644 (file)
@@ -42,6 +42,7 @@
 #include <lttng/abi.h>
 #include <lttng/abi-old.h>
 #include <lttng/events.h>
+#include <lttng/events-internal.h>
 #include <lttng/tracer.h>
 #include <lttng/tp-mempool.h>
 #include <ringbuffer/frontend_types.h>
@@ -64,7 +65,8 @@ static const struct file_operations lttng_session_fops;
 static const struct file_operations lttng_event_notifier_group_fops;
 static const struct file_operations lttng_channel_fops;
 static const struct file_operations lttng_metadata_fops;
-static const struct file_operations lttng_event_fops;
+static const struct file_operations lttng_event_recorder_event_fops;
+static const struct file_operations lttng_event_recorder_enabler_fops;
 static struct file_operations lttng_stream_ring_buffer_file_operations;
 
 static int put_u64(uint64_t val, unsigned long arg);
@@ -240,7 +242,7 @@ fd_error:
 #endif
 
 static
-void lttng_abi_tracer_version(struct lttng_kernel_tracer_version *v)
+void lttng_abi_tracer_version(struct lttng_kernel_abi_tracer_version *v)
 {
        v->major = LTTNG_MODULES_MAJOR_VERSION;
        v->minor = LTTNG_MODULES_MINOR_VERSION;
@@ -248,100 +250,100 @@ void lttng_abi_tracer_version(struct lttng_kernel_tracer_version *v)
 }
 
 static
-void lttng_abi_tracer_abi_version(struct lttng_kernel_tracer_abi_version *v)
+void lttng_abi_tracer_abi_version(struct lttng_kernel_abi_tracer_abi_version *v)
 {
-       v->major = LTTNG_MODULES_ABI_MAJOR_VERSION;
-       v->minor = LTTNG_MODULES_ABI_MINOR_VERSION;
+       v->major = LTTNG_KERNEL_ABI_MAJOR_VERSION;
+       v->minor = LTTNG_KERNEL_ABI_MINOR_VERSION;
 }
 
 static
 long lttng_abi_add_context(struct file *file,
-       struct lttng_kernel_context *context_param,
-       struct lttng_ctx **ctx, struct lttng_session *session)
+       struct lttng_kernel_abi_context *context_param,
+       struct lttng_kernel_ctx **ctx, struct lttng_session *session)
 {
 
        if (session->been_active)
                return -EPERM;
 
        switch (context_param->ctx) {
-       case LTTNG_KERNEL_CONTEXT_PID:
+       case LTTNG_KERNEL_ABI_CONTEXT_PID:
                return lttng_add_pid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_PRIO:
+       case LTTNG_KERNEL_ABI_CONTEXT_PRIO:
                return lttng_add_prio_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_NICE:
+       case LTTNG_KERNEL_ABI_CONTEXT_NICE:
                return lttng_add_nice_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VPID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VPID:
                return lttng_add_vpid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_TID:
+       case LTTNG_KERNEL_ABI_CONTEXT_TID:
                return lttng_add_tid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VTID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VTID:
                return lttng_add_vtid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_PPID:
+       case LTTNG_KERNEL_ABI_CONTEXT_PPID:
                return lttng_add_ppid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VPPID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VPPID:
                return lttng_add_vppid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_PERF_COUNTER:
-               context_param->u.perf_counter.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+       case LTTNG_KERNEL_ABI_CONTEXT_PERF_COUNTER:
+               context_param->u.perf_counter.name[LTTNG_KERNEL_ABI_SYM_NAME_LEN - 1] = '\0';
                return lttng_add_perf_counter_to_ctx(context_param->u.perf_counter.type,
                                context_param->u.perf_counter.config,
                                context_param->u.perf_counter.name,
                                ctx);
-       case LTTNG_KERNEL_CONTEXT_PROCNAME:
+       case LTTNG_KERNEL_ABI_CONTEXT_PROCNAME:
                return lttng_add_procname_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_HOSTNAME:
+       case LTTNG_KERNEL_ABI_CONTEXT_HOSTNAME:
                return lttng_add_hostname_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_CPU_ID:
+       case LTTNG_KERNEL_ABI_CONTEXT_CPU_ID:
                return lttng_add_cpu_id_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE:
+       case LTTNG_KERNEL_ABI_CONTEXT_INTERRUPTIBLE:
                return lttng_add_interruptible_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE:
+       case LTTNG_KERNEL_ABI_CONTEXT_NEED_RESCHEDULE:
                return lttng_add_need_reschedule_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_PREEMPTIBLE:
+       case LTTNG_KERNEL_ABI_CONTEXT_PREEMPTIBLE:
                return lttng_add_preemptible_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_MIGRATABLE:
+       case LTTNG_KERNEL_ABI_CONTEXT_MIGRATABLE:
                return lttng_add_migratable_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL:
-       case LTTNG_KERNEL_CONTEXT_CALLSTACK_USER:
+       case LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_KERNEL:
+       case LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_USER:
                return lttng_add_callstack_to_ctx(ctx, context_param->ctx);
-       case LTTNG_KERNEL_CONTEXT_CGROUP_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_CGROUP_NS:
                return lttng_add_cgroup_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_IPC_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_IPC_NS:
                return lttng_add_ipc_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_MNT_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_MNT_NS:
                return lttng_add_mnt_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_NET_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_NET_NS:
                return lttng_add_net_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_PID_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_PID_NS:
                return lttng_add_pid_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_USER_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_USER_NS:
                return lttng_add_user_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_UTS_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_UTS_NS:
                return lttng_add_uts_ns_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_UID:
+       case LTTNG_KERNEL_ABI_CONTEXT_UID:
                return lttng_add_uid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_EUID:
+       case LTTNG_KERNEL_ABI_CONTEXT_EUID:
                return lttng_add_euid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_SUID:
+       case LTTNG_KERNEL_ABI_CONTEXT_SUID:
                return lttng_add_suid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_GID:
+       case LTTNG_KERNEL_ABI_CONTEXT_GID:
                return lttng_add_gid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_EGID:
+       case LTTNG_KERNEL_ABI_CONTEXT_EGID:
                return lttng_add_egid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_SGID:
+       case LTTNG_KERNEL_ABI_CONTEXT_SGID:
                return lttng_add_sgid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VUID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VUID:
                return lttng_add_vuid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VEUID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VEUID:
                return lttng_add_veuid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VSUID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VSUID:
                return lttng_add_vsuid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VGID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VGID:
                return lttng_add_vgid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VEGID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VEGID:
                return lttng_add_vegid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_VSGID:
+       case LTTNG_KERNEL_ABI_CONTEXT_VSGID:
                return lttng_add_vsgid_to_ctx(ctx);
-       case LTTNG_KERNEL_CONTEXT_TIME_NS:
+       case LTTNG_KERNEL_ABI_CONTEXT_TIME_NS:
                return lttng_add_time_ns_to_ctx(ctx);
        default:
                return -EINVAL;
@@ -356,17 +358,17 @@ long lttng_abi_add_context(struct file *file,
  *     @arg: command arg
  *
  *     This ioctl implements lttng commands:
- *     LTTNG_KERNEL_SESSION
+ *     LTTNG_KERNEL_ABI_SESSION
  *             Returns a LTTng trace session file descriptor
- *     LTTNG_KERNEL_TRACER_VERSION
+ *     LTTNG_KERNEL_ABI_TRACER_VERSION
  *             Returns the LTTng kernel tracer version
- *     LTTNG_KERNEL_TRACEPOINT_LIST
+ *     LTTNG_KERNEL_ABI_TRACEPOINT_LIST
  *             Returns a file descriptor listing available tracepoints
- *     LTTNG_KERNEL_WAIT_QUIESCENT
+ *     LTTNG_KERNEL_ABI_WAIT_QUIESCENT
  *             Returns after all previously running probes have completed
- *     LTTNG_KERNEL_TRACER_ABI_VERSION
+ *     LTTNG_KERNEL_ABI_TRACER_ABI_VERSION
  *             Returns the LTTng kernel tracer ABI version
- *     LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE
+ *     LTTNG_KERNEL_ABI_EVENT_NOTIFIER_GROUP_CREATE
  *             Returns a LTTng event notifier group file descriptor
  *
  * The returned session will be deleted when its file descriptor is closed.
@@ -375,17 +377,17 @@ static
 long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        switch (cmd) {
-       case LTTNG_KERNEL_OLD_SESSION:
-       case LTTNG_KERNEL_SESSION:
+       case LTTNG_KERNEL_ABI_OLD_SESSION:
+       case LTTNG_KERNEL_ABI_SESSION:
                return lttng_abi_create_session();
-       case LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE:
+       case LTTNG_KERNEL_ABI_EVENT_NOTIFIER_GROUP_CREATE:
                return lttng_abi_create_event_notifier_group();
-       case LTTNG_KERNEL_OLD_TRACER_VERSION:
+       case LTTNG_KERNEL_ABI_OLD_TRACER_VERSION:
        {
-               struct lttng_kernel_tracer_version v;
-               struct lttng_kernel_old_tracer_version oldv;
-               struct lttng_kernel_old_tracer_version *uversion =
-                       (struct lttng_kernel_old_tracer_version __user *) arg;
+               struct lttng_kernel_abi_tracer_version v;
+               struct lttng_kernel_abi_old_tracer_version oldv;
+               struct lttng_kernel_abi_old_tracer_version *uversion =
+                       (struct lttng_kernel_abi_old_tracer_version __user *) arg;
 
                lttng_abi_tracer_version(&v);
                oldv.major = v.major;
@@ -396,11 +398,11 @@ long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                        return -EFAULT;
                return 0;
        }
-       case LTTNG_KERNEL_TRACER_VERSION:
+       case LTTNG_KERNEL_ABI_TRACER_VERSION:
        {
-               struct lttng_kernel_tracer_version version;
-               struct lttng_kernel_tracer_version *uversion =
-                       (struct lttng_kernel_tracer_version __user *) arg;
+               struct lttng_kernel_abi_tracer_version version;
+               struct lttng_kernel_abi_tracer_version *uversion =
+                       (struct lttng_kernel_abi_tracer_version __user *) arg;
 
                lttng_abi_tracer_version(&version);
 
@@ -408,11 +410,11 @@ long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                        return -EFAULT;
                return 0;
        }
-       case LTTNG_KERNEL_TRACER_ABI_VERSION:
+       case LTTNG_KERNEL_ABI_TRACER_ABI_VERSION:
        {
-               struct lttng_kernel_tracer_abi_version version;
-               struct lttng_kernel_tracer_abi_version *uversion =
-                       (struct lttng_kernel_tracer_abi_version __user *) arg;
+               struct lttng_kernel_abi_tracer_abi_version version;
+               struct lttng_kernel_abi_tracer_abi_version *uversion =
+                       (struct lttng_kernel_abi_tracer_abi_version __user *) arg;
 
                lttng_abi_tracer_abi_version(&version);
 
@@ -420,21 +422,21 @@ long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                        return -EFAULT;
                return 0;
        }
-       case LTTNG_KERNEL_OLD_TRACEPOINT_LIST:
-       case LTTNG_KERNEL_TRACEPOINT_LIST:
+       case LTTNG_KERNEL_ABI_OLD_TRACEPOINT_LIST:
+       case LTTNG_KERNEL_ABI_TRACEPOINT_LIST:
                return lttng_abi_tracepoint_list();
-       case LTTNG_KERNEL_SYSCALL_LIST:
+       case LTTNG_KERNEL_ABI_SYSCALL_LIST:
                return lttng_abi_syscall_list();
-       case LTTNG_KERNEL_OLD_WAIT_QUIESCENT:
-       case LTTNG_KERNEL_WAIT_QUIESCENT:
+       case LTTNG_KERNEL_ABI_OLD_WAIT_QUIESCENT:
+       case LTTNG_KERNEL_ABI_WAIT_QUIESCENT:
                synchronize_trace();
                return 0;
-       case LTTNG_KERNEL_OLD_CALIBRATE:
+       case LTTNG_KERNEL_ABI_OLD_CALIBRATE:
        {
-               struct lttng_kernel_old_calibrate __user *ucalibrate =
-                       (struct lttng_kernel_old_calibrate __user *) arg;
-               struct lttng_kernel_old_calibrate old_calibrate;
-               struct lttng_kernel_calibrate calibrate;
+               struct lttng_kernel_abi_old_calibrate __user *ucalibrate =
+                       (struct lttng_kernel_abi_old_calibrate __user *) arg;
+               struct lttng_kernel_abi_old_calibrate old_calibrate;
+               struct lttng_kernel_abi_calibrate calibrate;
                int ret;
 
                if (copy_from_user(&old_calibrate, ucalibrate, sizeof(old_calibrate)))
@@ -445,11 +447,11 @@ long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                        return -EFAULT;
                return ret;
        }
-       case LTTNG_KERNEL_CALIBRATE:
+       case LTTNG_KERNEL_ABI_CALIBRATE:
        {
-               struct lttng_kernel_calibrate __user *ucalibrate =
-                       (struct lttng_kernel_calibrate __user *) arg;
-               struct lttng_kernel_calibrate calibrate;
+               struct lttng_kernel_abi_calibrate __user *ucalibrate =
+                       (struct lttng_kernel_abi_calibrate __user *) arg;
+               struct lttng_kernel_abi_calibrate calibrate;
                int ret;
 
                if (copy_from_user(&calibrate, ucalibrate, sizeof(calibrate)))
@@ -483,7 +485,7 @@ static const struct file_operations lttng_proc_ops = {
 
 static
 int lttng_abi_create_channel(struct file *session_file,
-                            struct lttng_kernel_channel *chan_param,
+                            struct lttng_kernel_abi_channel *chan_param,
                             enum channel_type channel_type)
 {
        struct lttng_session *session = session_file->private_data;
@@ -517,10 +519,10 @@ int lttng_abi_create_channel(struct file *session_file,
        }
        switch (channel_type) {
        case PER_CPU_CHANNEL:
-               if (chan_param->output == LTTNG_KERNEL_SPLICE) {
+               if (chan_param->output == LTTNG_KERNEL_ABI_SPLICE) {
                        transport_name = chan_param->overwrite ?
                                "relay-overwrite" : "relay-discard";
-               } else if (chan_param->output == LTTNG_KERNEL_MMAP) {
+               } else if (chan_param->output == LTTNG_KERNEL_ABI_MMAP) {
                        transport_name = chan_param->overwrite ?
                                "relay-overwrite-mmap" : "relay-discard-mmap";
                } else {
@@ -528,9 +530,9 @@ int lttng_abi_create_channel(struct file *session_file,
                }
                break;
        case METADATA_CHANNEL:
-               if (chan_param->output == LTTNG_KERNEL_SPLICE)
+               if (chan_param->output == LTTNG_KERNEL_ABI_SPLICE)
                        transport_name = "relay-metadata";
-               else if (chan_param->output == LTTNG_KERNEL_MMAP)
+               else if (chan_param->output == LTTNG_KERNEL_ABI_MMAP)
                        transport_name = "relay-metadata-mmap";
                else
                        return -EINVAL;
@@ -575,13 +577,13 @@ fd_error:
 
 static
 int lttng_abi_session_set_name(struct lttng_session *session,
-               struct lttng_kernel_session_name *name)
+               struct lttng_kernel_abi_session_name *name)
 {
        size_t len;
 
-       len = strnlen(name->name, LTTNG_KERNEL_SESSION_NAME_LEN);
+       len = strnlen(name->name, LTTNG_KERNEL_ABI_SESSION_NAME_LEN);
 
-       if (len == LTTNG_KERNEL_SESSION_NAME_LEN) {
+       if (len == LTTNG_KERNEL_ABI_SESSION_NAME_LEN) {
                /* Name is too long/malformed */
                return -EINVAL;
        }
@@ -592,13 +594,13 @@ int lttng_abi_session_set_name(struct lttng_session *session,
 
 static
 int lttng_abi_session_set_creation_time(struct lttng_session *session,
-               struct lttng_kernel_session_creation_time *time)
+               struct lttng_kernel_abi_session_creation_time *time)
 {
        size_t len;
 
-       len = strnlen(time->iso8601, LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN);
+       len = strnlen(time->iso8601, LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN);
 
-       if (len == LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN) {
+       if (len == LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN) {
                /* Time is too long/malformed */
                return -EINVAL;
        }
@@ -627,15 +629,15 @@ static
 long lttng_counter_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        struct lttng_counter *counter = file->private_data;
-       size_t indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX] = { 0 };
+       size_t indexes[LTTNG_KERNEL_ABI_COUNTER_DIMENSION_MAX] = { 0 };
        int i;
 
        switch (cmd) {
-       case LTTNG_KERNEL_COUNTER_READ:
+       case LTTNG_KERNEL_ABI_COUNTER_READ:
        {
-               struct lttng_kernel_counter_read local_counter_read;
-               struct lttng_kernel_counter_read __user *ucounter_read =
-                               (struct lttng_kernel_counter_read __user *) arg;
+               struct lttng_kernel_abi_counter_read local_counter_read;
+               struct lttng_kernel_abi_counter_read __user *ucounter_read =
+                               (struct lttng_kernel_abi_counter_read __user *) arg;
                bool overflow, underflow;
                int64_t value;
                int32_t cpu;
@@ -667,11 +669,11 @@ long lttng_counter_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
                return 0;
        }
-       case LTTNG_KERNEL_COUNTER_AGGREGATE:
+       case LTTNG_KERNEL_ABI_COUNTER_AGGREGATE:
        {
-               struct lttng_kernel_counter_aggregate local_counter_aggregate;
-               struct lttng_kernel_counter_aggregate __user *ucounter_aggregate =
-                               (struct lttng_kernel_counter_aggregate __user *) arg;
+               struct lttng_kernel_abi_counter_aggregate local_counter_aggregate;
+               struct lttng_kernel_abi_counter_aggregate __user *ucounter_aggregate =
+                               (struct lttng_kernel_abi_counter_aggregate __user *) arg;
                bool overflow, underflow;
                int64_t value;
                int ret;
@@ -701,11 +703,11 @@ long lttng_counter_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
                return 0;
        }
-       case LTTNG_KERNEL_COUNTER_CLEAR:
+       case LTTNG_KERNEL_ABI_COUNTER_CLEAR:
        {
-               struct lttng_kernel_counter_clear local_counter_clear;
-               struct lttng_kernel_counter_clear __user *ucounter_clear =
-                               (struct lttng_kernel_counter_clear __user *) arg;
+               struct lttng_kernel_abi_counter_clear local_counter_clear;
+               struct lttng_kernel_abi_counter_clear __user *ucounter_clear =
+                               (struct lttng_kernel_abi_counter_clear __user *) arg;
 
                if (copy_from_user(&local_counter_clear, ucounter_clear,
                                        sizeof(local_counter_clear)))
@@ -737,20 +739,20 @@ static const struct file_operations lttng_counter_fops = {
 
 
 static
-enum tracker_type get_tracker_type(struct lttng_kernel_tracker_args *tracker)
+enum tracker_type get_tracker_type(struct lttng_kernel_abi_tracker_args *tracker)
 {
        switch (tracker->type) {
-       case LTTNG_KERNEL_TRACKER_PID:
+       case LTTNG_KERNEL_ABI_TRACKER_PID:
                return TRACKER_PID;
-       case LTTNG_KERNEL_TRACKER_VPID:
+       case LTTNG_KERNEL_ABI_TRACKER_VPID:
                return TRACKER_VPID;
-       case LTTNG_KERNEL_TRACKER_UID:
+       case LTTNG_KERNEL_ABI_TRACKER_UID:
                return TRACKER_UID;
-       case LTTNG_KERNEL_TRACKER_VUID:
+       case LTTNG_KERNEL_ABI_TRACKER_VUID:
                return TRACKER_VUID;
-       case LTTNG_KERNEL_TRACKER_GID:
+       case LTTNG_KERNEL_ABI_TRACKER_GID:
                return TRACKER_GID;
-       case LTTNG_KERNEL_TRACKER_VGID:
+       case LTTNG_KERNEL_ABI_TRACKER_VGID:
                return TRACKER_VGID;
        default:
                return TRACKER_UNKNOWN;
@@ -765,21 +767,21 @@ enum tracker_type get_tracker_type(struct lttng_kernel_tracker_args *tracker)
  *     @arg: command arg
  *
  *     This ioctl implements lttng commands:
- *     LTTNG_KERNEL_CHANNEL
+ *     LTTNG_KERNEL_ABI_CHANNEL
  *             Returns a LTTng channel file descriptor
- *     LTTNG_KERNEL_ENABLE
+ *     LTTNG_KERNEL_ABI_ENABLE
  *             Enables tracing for a session (weak enable)
- *     LTTNG_KERNEL_DISABLE
+ *     LTTNG_KERNEL_ABI_DISABLE
  *             Disables tracing for a session (strong disable)
- *     LTTNG_KERNEL_METADATA
+ *     LTTNG_KERNEL_ABI_METADATA
  *             Returns a LTTng metadata file descriptor
- *     LTTNG_KERNEL_SESSION_TRACK_PID
+ *     LTTNG_KERNEL_ABI_SESSION_TRACK_PID
  *             Add PID to session PID tracker
- *     LTTNG_KERNEL_SESSION_UNTRACK_PID
+ *     LTTNG_KERNEL_ABI_SESSION_UNTRACK_PID
  *             Remove PID from session PID tracker
- *     LTTNG_KERNEL_SESSION_TRACK_ID
+ *     LTTNG_KERNEL_ABI_SESSION_TRACK_ID
  *             Add ID to tracker
- *     LTTNG_KERNEL_SESSION_UNTRACK_ID
+ *     LTTNG_KERNEL_ABI_SESSION_UNTRACK_ID
  *             Remove ID from tracker
  *
  * The returned channel will be deleted when its file descriptor is closed.
@@ -788,15 +790,15 @@ static
 long lttng_session_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        struct lttng_session *session = file->private_data;
-       struct lttng_kernel_channel chan_param;
-       struct lttng_kernel_old_channel old_chan_param;
+       struct lttng_kernel_abi_channel chan_param;
+       struct lttng_kernel_abi_old_channel old_chan_param;
 
        switch (cmd) {
-       case LTTNG_KERNEL_OLD_CHANNEL:
+       case LTTNG_KERNEL_ABI_OLD_CHANNEL:
        {
                if (copy_from_user(&old_chan_param,
-                               (struct lttng_kernel_old_channel __user *) arg,
-                               sizeof(struct lttng_kernel_old_channel)))
+                               (struct lttng_kernel_abi_old_channel __user *) arg,
+                               sizeof(struct lttng_kernel_abi_old_channel)))
                        return -EFAULT;
                chan_param.overwrite = old_chan_param.overwrite;
                chan_param.subbuf_size = old_chan_param.subbuf_size;
@@ -808,30 +810,30 @@ long lttng_session_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                return lttng_abi_create_channel(file, &chan_param,
                                PER_CPU_CHANNEL);
        }
-       case LTTNG_KERNEL_CHANNEL:
+       case LTTNG_KERNEL_ABI_CHANNEL:
        {
                if (copy_from_user(&chan_param,
-                               (struct lttng_kernel_channel __user *) arg,
-                               sizeof(struct lttng_kernel_channel)))
+                               (struct lttng_kernel_abi_channel __user *) arg,
+                               sizeof(struct lttng_kernel_abi_channel)))
                        return -EFAULT;
                return lttng_abi_create_channel(file, &chan_param,
                                PER_CPU_CHANNEL);
        }
-       case LTTNG_KERNEL_OLD_SESSION_START:
-       case LTTNG_KERNEL_OLD_ENABLE:
-       case LTTNG_KERNEL_SESSION_START:
-       case LTTNG_KERNEL_ENABLE:
+       case LTTNG_KERNEL_ABI_OLD_SESSION_START:
+       case LTTNG_KERNEL_ABI_OLD_ENABLE:
+       case LTTNG_KERNEL_ABI_SESSION_START:
+       case LTTNG_KERNEL_ABI_ENABLE:
                return lttng_session_enable(session);
-       case LTTNG_KERNEL_OLD_SESSION_STOP:
-       case LTTNG_KERNEL_OLD_DISABLE:
-       case LTTNG_KERNEL_SESSION_STOP:
-       case LTTNG_KERNEL_DISABLE:
+       case LTTNG_KERNEL_ABI_OLD_SESSION_STOP:
+       case LTTNG_KERNEL_ABI_OLD_DISABLE:
+       case LTTNG_KERNEL_ABI_SESSION_STOP:
+       case LTTNG_KERNEL_ABI_DISABLE:
                return lttng_session_disable(session);
-       case LTTNG_KERNEL_OLD_METADATA:
+       case LTTNG_KERNEL_ABI_OLD_METADATA:
        {
                if (copy_from_user(&old_chan_param,
-                               (struct lttng_kernel_old_channel __user *) arg,
-                               sizeof(struct lttng_kernel_old_channel)))
+                               (struct lttng_kernel_abi_old_channel __user *) arg,
+                               sizeof(struct lttng_kernel_abi_old_channel)))
                        return -EFAULT;
                chan_param.overwrite = old_chan_param.overwrite;
                chan_param.subbuf_size = old_chan_param.subbuf_size;
@@ -843,41 +845,41 @@ long lttng_session_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                return lttng_abi_create_channel(file, &chan_param,
                                METADATA_CHANNEL);
        }
-       case LTTNG_KERNEL_METADATA:
+       case LTTNG_KERNEL_ABI_METADATA:
        {
                if (copy_from_user(&chan_param,
-                                       (struct lttng_kernel_channel __user *) arg,
-                                       sizeof(struct lttng_kernel_channel)))
+                                       (struct lttng_kernel_abi_channel __user *) arg,
+                                       sizeof(struct lttng_kernel_abi_channel)))
                        return -EFAULT;
                return lttng_abi_create_channel(file, &chan_param,
                                METADATA_CHANNEL);
        }
-       case LTTNG_KERNEL_SESSION_TRACK_PID:
+       case LTTNG_KERNEL_ABI_SESSION_TRACK_PID:
                return lttng_session_track_id(session, TRACKER_PID, (int) arg);
-       case LTTNG_KERNEL_SESSION_UNTRACK_PID:
+       case LTTNG_KERNEL_ABI_SESSION_UNTRACK_PID:
                return lttng_session_untrack_id(session, TRACKER_PID, (int) arg);
-       case LTTNG_KERNEL_SESSION_TRACK_ID:
+       case LTTNG_KERNEL_ABI_SESSION_TRACK_ID:
        {
-               struct lttng_kernel_tracker_args tracker;
+               struct lttng_kernel_abi_tracker_args tracker;
                enum tracker_type tracker_type;
 
                if (copy_from_user(&tracker,
-                               (struct lttng_kernel_tracker_args __user *) arg,
-                               sizeof(struct lttng_kernel_tracker_args)))
+                               (struct lttng_kernel_abi_tracker_args __user *) arg,
+                               sizeof(struct lttng_kernel_abi_tracker_args)))
                        return -EFAULT;
                tracker_type = get_tracker_type(&tracker);
                if (tracker_type == TRACKER_UNKNOWN)
                        return -EINVAL;
                return lttng_session_track_id(session, tracker_type, tracker.id);
        }
-       case LTTNG_KERNEL_SESSION_UNTRACK_ID:
+       case LTTNG_KERNEL_ABI_SESSION_UNTRACK_ID:
        {
-               struct lttng_kernel_tracker_args tracker;
+               struct lttng_kernel_abi_tracker_args tracker;
                enum tracker_type tracker_type;
 
                if (copy_from_user(&tracker,
-                               (struct lttng_kernel_tracker_args __user *) arg,
-                               sizeof(struct lttng_kernel_tracker_args)))
+                               (struct lttng_kernel_abi_tracker_args __user *) arg,
+                               sizeof(struct lttng_kernel_abi_tracker_args)))
                        return -EFAULT;
                tracker_type = get_tracker_type(&tracker);
                if (tracker_type == TRACKER_UNKNOWN)
@@ -885,43 +887,43 @@ long lttng_session_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                return lttng_session_untrack_id(session, tracker_type,
                                tracker.id);
        }
-       case LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS:
+       case LTTNG_KERNEL_ABI_SESSION_LIST_TRACKER_PIDS:
                return lttng_session_list_tracker_ids(session, TRACKER_PID);
-       case LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS:
+       case LTTNG_KERNEL_ABI_SESSION_LIST_TRACKER_IDS:
        {
-               struct lttng_kernel_tracker_args tracker;
+               struct lttng_kernel_abi_tracker_args tracker;
                enum tracker_type tracker_type;
 
                if (copy_from_user(&tracker,
-                               (struct lttng_kernel_tracker_args __user *) arg,
-                               sizeof(struct lttng_kernel_tracker_args)))
+                               (struct lttng_kernel_abi_tracker_args __user *) arg,
+                               sizeof(struct lttng_kernel_abi_tracker_args)))
                        return -EFAULT;
                tracker_type = get_tracker_type(&tracker);
                if (tracker_type == TRACKER_UNKNOWN)
                        return -EINVAL;
                return lttng_session_list_tracker_ids(session, tracker_type);
        }
-       case LTTNG_KERNEL_SESSION_METADATA_REGEN:
+       case LTTNG_KERNEL_ABI_SESSION_METADATA_REGEN:
                return lttng_session_metadata_regenerate(session);
-       case LTTNG_KERNEL_SESSION_STATEDUMP:
+       case LTTNG_KERNEL_ABI_SESSION_STATEDUMP:
                return lttng_session_statedump(session);
-       case LTTNG_KERNEL_SESSION_SET_NAME:
+       case LTTNG_KERNEL_ABI_SESSION_SET_NAME:
        {
-               struct lttng_kernel_session_name name;
+               struct lttng_kernel_abi_session_name name;
 
                if (copy_from_user(&name,
-                               (struct lttng_kernel_session_name __user *) arg,
-                               sizeof(struct lttng_kernel_session_name)))
+                               (struct lttng_kernel_abi_session_name __user *) arg,
+                               sizeof(struct lttng_kernel_abi_session_name)))
                        return -EFAULT;
                return lttng_abi_session_set_name(session, &name);
        }
-       case LTTNG_KERNEL_SESSION_SET_CREATION_TIME:
+       case LTTNG_KERNEL_ABI_SESSION_SET_CREATION_TIME:
        {
-               struct lttng_kernel_session_creation_time time;
+               struct lttng_kernel_abi_session_creation_time time;
 
                if (copy_from_user(&time,
-                               (struct lttng_kernel_session_creation_time __user *) arg,
-                               sizeof(struct lttng_kernel_session_creation_time)))
+                               (struct lttng_kernel_abi_session_creation_time __user *) arg,
+                               sizeof(struct lttng_kernel_abi_session_creation_time)))
                        return -EFAULT;
                return lttng_abi_session_set_creation_time(session, &time);
        }
@@ -1272,13 +1274,13 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
        unsigned int rb_cmd;
        bool coherent;
 
-       if (cmd == RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK)
-               rb_cmd = RING_BUFFER_GET_NEXT_SUBBUF;
+       if (cmd == LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK)
+               rb_cmd = LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF;
        else
                rb_cmd = cmd;
 
        switch (cmd) {
-       case RING_BUFFER_GET_NEXT_SUBBUF:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
                struct lib_ring_buffer *buf = stream->priv;
@@ -1292,15 +1294,15 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
                        goto err;
                break;
        }
-       case RING_BUFFER_GET_SUBBUF:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_SUBBUF:
        {
                /*
                 * Random access is not allowed for metadata channel.
                 */
                return -ENOSYS;
        }
-       case RING_BUFFER_FLUSH_EMPTY:   /* Fall-through. */
-       case RING_BUFFER_FLUSH:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH_EMPTY:  /* Fall-through. */
+       case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
                struct lib_ring_buffer *buf = stream->priv;
@@ -1315,19 +1317,19 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
                        goto err;
                break;
        }
-       case RING_BUFFER_GET_METADATA_VERSION:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_METADATA_VERSION:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
 
                return put_u64(stream->version, arg);
        }
-       case RING_BUFFER_METADATA_CACHE_DUMP:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_METADATA_CACHE_DUMP:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
 
                return lttng_metadata_cache_dump(stream);
        }
-       case RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
                struct lib_ring_buffer *buf = stream->priv;
@@ -1353,13 +1355,13 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
                goto err;
 
        switch (cmd) {
-       case RING_BUFFER_PUT_NEXT_SUBBUF:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_PUT_NEXT_SUBBUF:
        {
                lttng_metadata_ring_buffer_ioctl_put_next_subbuf(filp,
                                cmd, arg);
                break;
        }
-       case RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
        {
                return put_u32(coherent, arg);
        }
@@ -1381,13 +1383,13 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
        unsigned int rb_cmd;
        bool coherent;
 
-       if (cmd == RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK)
-               rb_cmd = RING_BUFFER_GET_NEXT_SUBBUF;
+       if (cmd == LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK)
+               rb_cmd = LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF;
        else
                rb_cmd = cmd;
 
        switch (cmd) {
-       case RING_BUFFER_GET_NEXT_SUBBUF:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
                struct lib_ring_buffer *buf = stream->priv;
@@ -1401,15 +1403,15 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
                        goto err;
                break;
        }
-       case RING_BUFFER_GET_SUBBUF:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_SUBBUF:
        {
                /*
                 * Random access is not allowed for metadata channel.
                 */
                return -ENOSYS;
        }
-       case RING_BUFFER_FLUSH_EMPTY:   /* Fall-through. */
-       case RING_BUFFER_FLUSH:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH_EMPTY:  /* Fall-through. */
+       case LTTNG_KERNEL_ABI_RING_BUFFER_FLUSH:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
                struct lib_ring_buffer *buf = stream->priv;
@@ -1424,19 +1426,19 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
                        goto err;
                break;
        }
-       case RING_BUFFER_GET_METADATA_VERSION:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_METADATA_VERSION:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
 
                return put_u64(stream->version, arg);
        }
-       case RING_BUFFER_METADATA_CACHE_DUMP:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_METADATA_CACHE_DUMP:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
 
                return lttng_metadata_cache_dump(stream);
        }
-       case RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
                struct lib_ring_buffer *buf = stream->priv;
@@ -1462,13 +1464,13 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
                goto err;
 
        switch (cmd) {
-       case RING_BUFFER_PUT_NEXT_SUBBUF:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_PUT_NEXT_SUBBUF:
        {
                lttng_metadata_ring_buffer_ioctl_put_next_subbuf(filp,
                                cmd, arg);
                break;
        }
-       case RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK:
        {
                return put_u32(coherent, arg);
        }
@@ -1719,51 +1721,51 @@ refcount_error:
 }
 
 static
-int lttng_abi_validate_event_param(struct lttng_kernel_event *event_param)
+int lttng_abi_validate_event_param(struct lttng_kernel_abi_event *event_param)
 {
        /* Limit ABI to implemented features. */
        switch (event_param->instrumentation) {
-       case LTTNG_KERNEL_SYSCALL:
+       case LTTNG_KERNEL_ABI_SYSCALL:
                switch (event_param->u.syscall.entryexit) {
-               case LTTNG_KERNEL_SYSCALL_ENTRY:        /* Fall-through */
-               case LTTNG_KERNEL_SYSCALL_EXIT:         /* Fall-through */
-               case LTTNG_KERNEL_SYSCALL_ENTRYEXIT:
+               case LTTNG_KERNEL_ABI_SYSCALL_ENTRY:    /* Fall-through */
+               case LTTNG_KERNEL_ABI_SYSCALL_EXIT:             /* Fall-through */
+               case LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT:
                        break;
                default:
                        return -EINVAL;
                }
                switch (event_param->u.syscall.abi) {
-               case LTTNG_KERNEL_SYSCALL_ABI_ALL:
+               case LTTNG_KERNEL_ABI_SYSCALL_ABI_ALL:
                        break;
                default:
                        return -EINVAL;
                }
                switch (event_param->u.syscall.match) {
-               case LTTNG_KERNEL_SYSCALL_MATCH_NAME:
+               case LTTNG_KERNEL_ABI_SYSCALL_MATCH_NAME:
                        break;
                default:
                        return -EINVAL;
                }
                break;
 
-       case LTTNG_KERNEL_KRETPROBE:
+       case LTTNG_KERNEL_ABI_KRETPROBE:
                switch (event_param->u.kretprobe.entryexit) {
-               case LTTNG_KERNEL_SYSCALL_ENTRYEXIT:
+               case LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT:
                        break;
-               case LTTNG_KERNEL_SYSCALL_ENTRY:        /* Fall-through */
-               case LTTNG_KERNEL_SYSCALL_EXIT:         /* Fall-through */
+               case LTTNG_KERNEL_ABI_SYSCALL_ENTRY:    /* Fall-through */
+               case LTTNG_KERNEL_ABI_SYSCALL_EXIT:             /* Fall-through */
                default:
                        return -EINVAL;
                }
                break;
 
-       case LTTNG_KERNEL_TRACEPOINT:   /* Fall-through */
-       case LTTNG_KERNEL_KPROBE:       /* Fall-through */
-       case LTTNG_KERNEL_UPROBE:
+       case LTTNG_KERNEL_ABI_TRACEPOINT:       /* Fall-through */
+       case LTTNG_KERNEL_ABI_KPROBE:   /* Fall-through */
+       case LTTNG_KERNEL_ABI_UPROBE:
                break;
 
-       case LTTNG_KERNEL_FUNCTION:     /* Fall-through */
-       case LTTNG_KERNEL_NOOP:         /* Fall-through */
+       case LTTNG_KERNEL_ABI_FUNCTION: /* Fall-through */
+       case LTTNG_KERNEL_ABI_NOOP:             /* Fall-through */
        default:
                return -EINVAL;
        }
@@ -1772,36 +1774,54 @@ int lttng_abi_validate_event_param(struct lttng_kernel_event *event_param)
 
 static
 int lttng_abi_create_event(struct file *channel_file,
-                          struct lttng_kernel_event *event_param)
+                          struct lttng_kernel_abi_event *event_param)
 {
+       const struct file_operations *fops;
        struct lttng_channel *channel = channel_file->private_data;
        int event_fd, ret;
        struct file *event_file;
        void *priv;
 
-       event_param->name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+       event_param->name[LTTNG_KERNEL_ABI_SYM_NAME_LEN - 1] = '\0';
        switch (event_param->instrumentation) {
-       case LTTNG_KERNEL_KRETPROBE:
-               event_param->u.kretprobe.symbol_name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+       case LTTNG_KERNEL_ABI_KRETPROBE:
+               event_param->u.kretprobe.symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN - 1] = '\0';
                break;
-       case LTTNG_KERNEL_KPROBE:
-               event_param->u.kprobe.symbol_name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+       case LTTNG_KERNEL_ABI_KPROBE:
+               event_param->u.kprobe.symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN - 1] = '\0';
                break;
-       case LTTNG_KERNEL_FUNCTION:
+       case LTTNG_KERNEL_ABI_FUNCTION:
                WARN_ON_ONCE(1);
                /* Not implemented. */
                break;
        default:
                break;
        }
+
+       switch (event_param->instrumentation) {
+       case LTTNG_KERNEL_ABI_TRACEPOINT:               /* Fall-through */
+       case LTTNG_KERNEL_ABI_SYSCALL:
+               fops = &lttng_event_recorder_enabler_fops;
+               break;
+       case LTTNG_KERNEL_ABI_KPROBE:                   /* Fall-through */
+       case LTTNG_KERNEL_ABI_KRETPROBE:                /* Fall-through */
+       case LTTNG_KERNEL_ABI_UPROBE:
+               fops = &lttng_event_recorder_event_fops;
+               break;
+
+       case LTTNG_KERNEL_ABI_FUNCTION:                 /* Fall-through */
+       case LTTNG_KERNEL_ABI_NOOP:                     /* Fall-through */
+       default:
+               return -EINVAL;
+       }
+
        event_fd = lttng_get_unused_fd();
        if (event_fd < 0) {
                ret = event_fd;
                goto fd_error;
        }
        event_file = anon_inode_getfile("[lttng_event]",
-                                       &lttng_event_fops,
-                                       NULL, O_RDWR);
+                                       fops, NULL, O_RDWR);
        if (IS_ERR(event_file)) {
                ret = PTR_ERR(event_file);
                goto file_error;
@@ -1816,8 +1836,8 @@ int lttng_abi_create_event(struct file *channel_file,
                goto event_error;
 
        switch (event_param->instrumentation) {
-       case LTTNG_KERNEL_TRACEPOINT:           /* Fall-through */
-       case LTTNG_KERNEL_SYSCALL:
+       case LTTNG_KERNEL_ABI_TRACEPOINT:               /* Fall-through */
+       case LTTNG_KERNEL_ABI_SYSCALL:
        {
                struct lttng_event_enabler *event_enabler;
 
@@ -1836,9 +1856,9 @@ int lttng_abi_create_event(struct file *channel_file,
                break;
        }
 
-       case LTTNG_KERNEL_KPROBE:               /* Fall-through */
-       case LTTNG_KERNEL_KRETPROBE:            /* Fall-through */
-       case LTTNG_KERNEL_UPROBE:
+       case LTTNG_KERNEL_ABI_KPROBE:                   /* Fall-through */
+       case LTTNG_KERNEL_ABI_KRETPROBE:                /* Fall-through */
+       case LTTNG_KERNEL_ABI_UPROBE:
        {
                struct lttng_event *event;
 
@@ -1858,8 +1878,8 @@ int lttng_abi_create_event(struct file *channel_file,
                break;
        }
 
-       case LTTNG_KERNEL_FUNCTION:             /* Fall-through */
-       case LTTNG_KERNEL_NOOP:                 /* Fall-through */
+       case LTTNG_KERNEL_ABI_FUNCTION:                 /* Fall-through */
+       case LTTNG_KERNEL_ABI_NOOP:                     /* Fall-through */
        default:
                ret = -EINVAL;
                goto event_error;
@@ -1879,148 +1899,138 @@ fd_error:
 }
 
 static
-long lttng_event_notifier_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+long lttng_event_notifier_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-       struct lttng_event_notifier *event_notifier;
-       struct lttng_event_notifier_enabler *event_notifier_enabler;
-       enum lttng_event_type *evtype = file->private_data;
+       struct lttng_event_notifier *event_notifier = file->private_data;
 
        switch (cmd) {
-       case LTTNG_KERNEL_ENABLE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       event_notifier = file->private_data;
-                       return lttng_event_notifier_enable(event_notifier);
-               case LTTNG_TYPE_ENABLER:
-                       event_notifier_enabler = file->private_data;
-                       return lttng_event_notifier_enabler_enable(event_notifier_enabler);
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
-       case LTTNG_KERNEL_DISABLE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       event_notifier = file->private_data;
-                       return lttng_event_notifier_disable(event_notifier);
-               case LTTNG_TYPE_ENABLER:
-                       event_notifier_enabler = file->private_data;
-                       return lttng_event_notifier_enabler_disable(event_notifier_enabler);
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
-       case LTTNG_KERNEL_FILTER:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       return -EINVAL;
-               case LTTNG_TYPE_ENABLER:
-                       event_notifier_enabler = file->private_data;
-                       return lttng_event_notifier_enabler_attach_filter_bytecode(
-                                       event_notifier_enabler,
-                               (struct lttng_kernel_filter_bytecode __user *) arg);
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
+       case LTTNG_KERNEL_ABI_ENABLE:
+               return lttng_event_notifier_enable(event_notifier);
+       case LTTNG_KERNEL_ABI_DISABLE:
+               return lttng_event_notifier_disable(event_notifier);
+       case LTTNG_KERNEL_ABI_FILTER:
+               return -EINVAL;
+       case LTTNG_KERNEL_ABI_CAPTURE:
+               return -EINVAL;
+       case LTTNG_KERNEL_ABI_ADD_CALLSITE:
+               return lttng_event_notifier_add_callsite(event_notifier,
+                       (struct lttng_kernel_abi_event_callsite __user *) arg);
+       default:
+               return -ENOIOCTLCMD;
+       }
+}
 
-       case LTTNG_KERNEL_CAPTURE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       return -EINVAL;
-               case LTTNG_TYPE_ENABLER:
-                       event_notifier_enabler = file->private_data;
-                       return lttng_event_notifier_enabler_attach_capture_bytecode(
+static
+long lttng_event_notifier_enabler_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       struct lttng_event_notifier_enabler *event_notifier_enabler = file->private_data;
+
+       switch (cmd) {
+       case LTTNG_KERNEL_ABI_ENABLE:
+               return lttng_event_notifier_enabler_enable(event_notifier_enabler);
+       case LTTNG_KERNEL_ABI_DISABLE:
+               return lttng_event_notifier_enabler_disable(event_notifier_enabler);
+       case LTTNG_KERNEL_ABI_FILTER:
+               return lttng_event_notifier_enabler_attach_filter_bytecode(
                                event_notifier_enabler,
-                               (struct lttng_kernel_capture_bytecode __user *) arg);
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
-       case LTTNG_KERNEL_ADD_CALLSITE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       event_notifier = file->private_data;
-                       return lttng_event_notifier_add_callsite(event_notifier,
-                               (struct lttng_kernel_event_callsite __user *) arg);
-               case LTTNG_TYPE_ENABLER:
-                       return -EINVAL;
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
+                       (struct lttng_kernel_abi_filter_bytecode __user *) arg);
+       case LTTNG_KERNEL_ABI_CAPTURE:
+               return lttng_event_notifier_enabler_attach_capture_bytecode(
+                       event_notifier_enabler,
+                       (struct lttng_kernel_abi_capture_bytecode __user *) arg);
+       case LTTNG_KERNEL_ABI_ADD_CALLSITE:
+               return -EINVAL;
        default:
                return -ENOIOCTLCMD;
        }
 }
 
 static
-int lttng_event_notifier_release(struct inode *inode, struct file *file)
+int lttng_event_notifier_event_release(struct inode *inode, struct file *file)
 {
-       struct lttng_event_notifier *event_notifier;
-       struct lttng_event_notifier_enabler *event_notifier_enabler;
-       enum lttng_event_type *evtype = file->private_data;
+       struct lttng_event_notifier *event_notifier = file->private_data;
 
-       if (!evtype)
-               return 0;
+       if (event_notifier)
+               fput(event_notifier->group->file);
+       return 0;
+}
 
-       switch (*evtype) {
-       case LTTNG_TYPE_EVENT:
-               event_notifier = file->private_data;
-               if (event_notifier)
-                       fput(event_notifier->group->file);
-               break;
-       case LTTNG_TYPE_ENABLER:
-               event_notifier_enabler = file->private_data;
-               if (event_notifier_enabler)
-                       fput(event_notifier_enabler->group->file);
-               break;
-       default:
-               WARN_ON_ONCE(1);
-               break;
-       }
+static
+int lttng_event_notifier_enabler_release(struct inode *inode, struct file *file)
+{
+       struct lttng_event_notifier_enabler *event_notifier_enabler = file->private_data;
 
+       if (event_notifier_enabler)
+               fput(event_notifier_enabler->group->file);
        return 0;
 }
 
-static const struct file_operations lttng_event_notifier_fops = {
+static const struct file_operations lttng_event_notifier_event_fops = {
+       .owner = THIS_MODULE,
+       .release = lttng_event_notifier_event_release,
+       .unlocked_ioctl = lttng_event_notifier_event_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl = lttng_event_notifier_event_ioctl,
+#endif
+};
+
+static const struct file_operations lttng_event_notifier_enabler_fops = {
        .owner = THIS_MODULE,
-       .release = lttng_event_notifier_release,
-       .unlocked_ioctl = lttng_event_notifier_ioctl,
+       .release = lttng_event_notifier_enabler_release,
+       .unlocked_ioctl = lttng_event_notifier_enabler_ioctl,
 #ifdef CONFIG_COMPAT
-       .compat_ioctl = lttng_event_notifier_ioctl,
+       .compat_ioctl = lttng_event_notifier_enabler_ioctl,
 #endif
 };
 
 static
 int lttng_abi_create_event_notifier(struct file *event_notifier_group_file,
-               struct lttng_kernel_event_notifier *event_notifier_param)
+               struct lttng_kernel_abi_event_notifier *event_notifier_param)
 {
        struct lttng_event_notifier_group *event_notifier_group =
                        event_notifier_group_file->private_data;
+       const struct file_operations *fops;
        int event_notifier_fd, ret;
        struct file *event_notifier_file;
        void *priv;
 
        switch (event_notifier_param->event.instrumentation) {
-       case LTTNG_KERNEL_TRACEPOINT:
-       case LTTNG_KERNEL_UPROBE:
+       case LTTNG_KERNEL_ABI_TRACEPOINT:
+       case LTTNG_KERNEL_ABI_UPROBE:
                break;
-       case LTTNG_KERNEL_KPROBE:
-               event_notifier_param->event.u.kprobe.symbol_name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+       case LTTNG_KERNEL_ABI_KPROBE:
+               event_notifier_param->event.u.kprobe.symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN - 1] = '\0';
                break;
-       case LTTNG_KERNEL_SYSCALL:
+       case LTTNG_KERNEL_ABI_SYSCALL:
                break;
-       case LTTNG_KERNEL_KRETPROBE:
+       case LTTNG_KERNEL_ABI_KRETPROBE:
                /* Placing an event notifier on kretprobe is not supported. */
-       case LTTNG_KERNEL_FUNCTION:
-       case LTTNG_KERNEL_NOOP:
+       case LTTNG_KERNEL_ABI_FUNCTION:
+       case LTTNG_KERNEL_ABI_NOOP:
+       default:
+               ret = -EINVAL;
+               goto inval_instr;
+       }
+
+       switch (event_notifier_param->event.instrumentation) {
+       case LTTNG_KERNEL_ABI_TRACEPOINT:               /* Fall-through */
+       case LTTNG_KERNEL_ABI_SYSCALL:
+               fops = &lttng_event_notifier_enabler_fops;
+               break;
+       case LTTNG_KERNEL_ABI_KPROBE:                   /* Fall-through */
+       case LTTNG_KERNEL_ABI_KRETPROBE:                /* Fall-through */
+       case LTTNG_KERNEL_ABI_UPROBE:
+               fops = &lttng_event_notifier_event_fops;
+               break;
+
+       case LTTNG_KERNEL_ABI_FUNCTION:                 /* Fall-through */
+       case LTTNG_KERNEL_ABI_NOOP:                     /* Fall-through */
        default:
                ret = -EINVAL;
                goto inval_instr;
        }
 
-       event_notifier_param->event.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+       event_notifier_param->event.name[LTTNG_KERNEL_ABI_SYM_NAME_LEN - 1] = '\0';
 
        event_notifier_fd = lttng_get_unused_fd();
        if (event_notifier_fd < 0) {
@@ -2029,8 +2039,7 @@ int lttng_abi_create_event_notifier(struct file *event_notifier_group_file,
        }
 
        event_notifier_file = anon_inode_getfile("[lttng_event_notifier]",
-                                       &lttng_event_notifier_fops,
-                                       NULL, O_RDWR);
+                                       fops, NULL, O_RDWR);
        if (IS_ERR(event_notifier_file)) {
                ret = PTR_ERR(event_notifier_file);
                goto file_error;
@@ -2042,9 +2051,13 @@ int lttng_abi_create_event_notifier(struct file *event_notifier_group_file,
                goto refcount_error;
        }
 
+       ret = lttng_abi_validate_event_param(&event_notifier_param->event);
+       if (ret)
+               goto event_notifier_error;
+
        switch (event_notifier_param->event.instrumentation) {
-       case LTTNG_KERNEL_TRACEPOINT:           /* Fall-through */
-       case LTTNG_KERNEL_SYSCALL:
+       case LTTNG_KERNEL_ABI_TRACEPOINT:               /* Fall-through */
+       case LTTNG_KERNEL_ABI_SYSCALL:
        {
                struct lttng_event_notifier_enabler *enabler;
 
@@ -2067,9 +2080,9 @@ int lttng_abi_create_event_notifier(struct file *event_notifier_group_file,
                break;
        }
 
-       case LTTNG_KERNEL_KPROBE:               /* Fall-through */
-       case LTTNG_KERNEL_KRETPROBE:            /* Fall-through */
-       case LTTNG_KERNEL_UPROBE:
+       case LTTNG_KERNEL_ABI_KPROBE:                   /* Fall-through */
+       case LTTNG_KERNEL_ABI_KRETPROBE:                /* Fall-through */
+       case LTTNG_KERNEL_ABI_UPROBE:
        {
                struct lttng_event_notifier *event_notifier;
 
@@ -2092,8 +2105,8 @@ int lttng_abi_create_event_notifier(struct file *event_notifier_group_file,
                break;
        }
 
-       case LTTNG_KERNEL_FUNCTION:             /* Fall-through */
-       case LTTNG_KERNEL_NOOP:                 /* Fall-through */
+       case LTTNG_KERNEL_ABI_FUNCTION:                 /* Fall-through */
+       case LTTNG_KERNEL_ABI_NOOP:                     /* Fall-through */
        default:
                ret = -EINVAL;
                goto event_notifier_error;
@@ -2116,7 +2129,7 @@ inval_instr:
 static
 long lttng_abi_event_notifier_group_create_error_counter(
                struct file *event_notifier_group_file,
-               const struct lttng_kernel_counter_conf *error_counter_conf)
+               const struct lttng_kernel_abi_counter_conf *error_counter_conf)
 {
        int counter_fd, ret;
        char *counter_transport_name;
@@ -2126,7 +2139,7 @@ long lttng_abi_event_notifier_group_create_error_counter(
        struct lttng_event_notifier_group *event_notifier_group =
                        (struct lttng_event_notifier_group *) event_notifier_group_file->private_data;
 
-       if (error_counter_conf->arithmetic != LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR) {
+       if (error_counter_conf->arithmetic != LTTNG_KERNEL_ABI_COUNTER_ARITHMETIC_MODULAR) {
                printk(KERN_ERR "LTTng: event_notifier: Error counter of the wrong arithmetic type.\n");
                return -EINVAL;
        }
@@ -2137,10 +2150,10 @@ long lttng_abi_event_notifier_group_create_error_counter(
        }
 
        switch (error_counter_conf->bitness) {
-       case LTTNG_KERNEL_COUNTER_BITNESS_64:
+       case LTTNG_KERNEL_ABI_COUNTER_BITNESS_64:
                counter_transport_name = "counter-per-cpu-64-modular";
                break;
-       case LTTNG_KERNEL_COUNTER_BITNESS_32:
+       case LTTNG_KERNEL_ABI_COUNTER_BITNESS_32:
                counter_transport_name = "counter-per-cpu-32-modular";
                break;
        default:
@@ -2223,26 +2236,26 @@ long lttng_event_notifier_group_ioctl(struct file *file, unsigned int cmd,
                unsigned long arg)
 {
        switch (cmd) {
-       case LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD:
+       case LTTNG_KERNEL_ABI_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD:
        {
                return lttng_abi_open_event_notifier_group_stream(file);
        }
-       case LTTNG_KERNEL_EVENT_NOTIFIER_CREATE:
+       case LTTNG_KERNEL_ABI_EVENT_NOTIFIER_CREATE:
        {
-               struct lttng_kernel_event_notifier uevent_notifier_param;
+               struct lttng_kernel_abi_event_notifier uevent_notifier_param;
 
                if (copy_from_user(&uevent_notifier_param,
-                               (struct lttng_kernel_event_notifier __user *) arg,
+                               (struct lttng_kernel_abi_event_notifier __user *) arg,
                                sizeof(uevent_notifier_param)))
                        return -EFAULT;
                return lttng_abi_create_event_notifier(file, &uevent_notifier_param);
        }
-       case LTTNG_KERNEL_COUNTER:
+       case LTTNG_KERNEL_ABI_COUNTER:
        {
-               struct lttng_kernel_counter_conf uerror_counter_conf;
+               struct lttng_kernel_abi_counter_conf uerror_counter_conf;
 
                if (copy_from_user(&uerror_counter_conf,
-                               (struct lttng_kernel_counter_conf __user *) arg,
+                               (struct lttng_kernel_abi_counter_conf __user *) arg,
                                sizeof(uerror_counter_conf)))
                        return -EFAULT;
                return lttng_abi_event_notifier_group_create_error_counter(file,
@@ -2282,16 +2295,16 @@ static const struct file_operations lttng_event_notifier_group_fops = {
  *     @arg: command arg
  *
  *     This ioctl implements lttng commands:
- *      LTTNG_KERNEL_STREAM
+ *      LTTNG_KERNEL_ABI_STREAM
  *              Returns an event stream file descriptor or failure.
  *              (typically, one event stream records events from one CPU)
- *     LTTNG_KERNEL_EVENT
+ *     LTTNG_KERNEL_ABI_EVENT
  *             Returns an event file descriptor or failure.
- *     LTTNG_KERNEL_CONTEXT
+ *     LTTNG_KERNEL_ABI_CONTEXT
  *             Prepend a context field to each event in the channel
- *     LTTNG_KERNEL_ENABLE
+ *     LTTNG_KERNEL_ABI_ENABLE
  *             Enable recording for events in this channel (weak enable)
- *     LTTNG_KERNEL_DISABLE
+ *     LTTNG_KERNEL_ABI_DISABLE
  *             Disable recording for events in this channel (strong disable)
  *
  * Channel and event file descriptors also hold a reference on the session.
@@ -2302,31 +2315,31 @@ long lttng_channel_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        struct lttng_channel *channel = file->private_data;
 
        switch (cmd) {
-       case LTTNG_KERNEL_OLD_STREAM:
-       case LTTNG_KERNEL_STREAM:
+       case LTTNG_KERNEL_ABI_OLD_STREAM:
+       case LTTNG_KERNEL_ABI_STREAM:
                return lttng_abi_open_stream(file);
-       case LTTNG_KERNEL_OLD_EVENT:
+       case LTTNG_KERNEL_ABI_OLD_EVENT:
        {
-               struct lttng_kernel_event *uevent_param;
-               struct lttng_kernel_old_event *old_uevent_param;
+               struct lttng_kernel_abi_event *uevent_param;
+               struct lttng_kernel_abi_old_event *old_uevent_param;
                int ret;
 
-               uevent_param = kmalloc(sizeof(struct lttng_kernel_event),
+               uevent_param = kmalloc(sizeof(struct lttng_kernel_abi_event),
                                GFP_KERNEL);
                if (!uevent_param) {
                        ret = -ENOMEM;
                        goto old_event_end;
                }
                old_uevent_param = kmalloc(
-                               sizeof(struct lttng_kernel_old_event),
+                               sizeof(struct lttng_kernel_abi_old_event),
                                GFP_KERNEL);
                if (!old_uevent_param) {
                        ret = -ENOMEM;
                        goto old_event_error_free_param;
                }
                if (copy_from_user(old_uevent_param,
-                               (struct lttng_kernel_old_event __user *) arg,
-                               sizeof(struct lttng_kernel_old_event))) {
+                               (struct lttng_kernel_abi_old_event __user *) arg,
+                               sizeof(struct lttng_kernel_abi_old_event))) {
                        ret = -EFAULT;
                        goto old_event_error_free_old_param;
                }
@@ -2337,7 +2350,7 @@ long lttng_channel_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                        old_uevent_param->instrumentation;
 
                switch (old_uevent_param->instrumentation) {
-               case LTTNG_KERNEL_KPROBE:
+               case LTTNG_KERNEL_ABI_KPROBE:
                        uevent_param->u.kprobe.addr =
                                old_uevent_param->u.kprobe.addr;
                        uevent_param->u.kprobe.offset =
@@ -2346,7 +2359,7 @@ long lttng_channel_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                                old_uevent_param->u.kprobe.symbol_name,
                                sizeof(uevent_param->u.kprobe.symbol_name));
                        break;
-               case LTTNG_KERNEL_KRETPROBE:
+               case LTTNG_KERNEL_ABI_KRETPROBE:
                        uevent_param->u.kretprobe.addr =
                                old_uevent_param->u.kretprobe.addr;
                        uevent_param->u.kretprobe.offset =
@@ -2355,7 +2368,7 @@ long lttng_channel_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                                old_uevent_param->u.kretprobe.symbol_name,
                                sizeof(uevent_param->u.kretprobe.symbol_name));
                        break;
-               case LTTNG_KERNEL_FUNCTION:
+               case LTTNG_KERNEL_ABI_FUNCTION:
                        WARN_ON_ONCE(1);
                        /* Not implemented. */
                        break;
@@ -2371,29 +2384,29 @@ old_event_error_free_param:
 old_event_end:
                return ret;
        }
-       case LTTNG_KERNEL_EVENT:
+       case LTTNG_KERNEL_ABI_EVENT:
        {
-               struct lttng_kernel_event uevent_param;
+               struct lttng_kernel_abi_event uevent_param;
 
                if (copy_from_user(&uevent_param,
-                               (struct lttng_kernel_event __user *) arg,
+                               (struct lttng_kernel_abi_event __user *) arg,
                                sizeof(uevent_param)))
                        return -EFAULT;
                return lttng_abi_create_event(file, &uevent_param);
        }
-       case LTTNG_KERNEL_OLD_CONTEXT:
+       case LTTNG_KERNEL_ABI_OLD_CONTEXT:
        {
-               struct lttng_kernel_context *ucontext_param;
-               struct lttng_kernel_old_context *old_ucontext_param;
+               struct lttng_kernel_abi_context *ucontext_param;
+               struct lttng_kernel_abi_old_context *old_ucontext_param;
                int ret;
 
-               ucontext_param = kmalloc(sizeof(struct lttng_kernel_context),
+               ucontext_param = kmalloc(sizeof(struct lttng_kernel_abi_context),
                                GFP_KERNEL);
                if (!ucontext_param) {
                        ret = -ENOMEM;
                        goto old_ctx_end;
                }
-               old_ucontext_param = kmalloc(sizeof(struct lttng_kernel_old_context),
+               old_ucontext_param = kmalloc(sizeof(struct lttng_kernel_abi_old_context),
                                GFP_KERNEL);
                if (!old_ucontext_param) {
                        ret = -ENOMEM;
@@ -2401,8 +2414,8 @@ old_event_end:
                }
 
                if (copy_from_user(old_ucontext_param,
-                               (struct lttng_kernel_old_context __user *) arg,
-                               sizeof(struct lttng_kernel_old_context))) {
+                               (struct lttng_kernel_abi_old_context __user *) arg,
+                               sizeof(struct lttng_kernel_abi_old_context))) {
                        ret = -EFAULT;
                        goto old_ctx_error_free_old_param;
                }
@@ -2410,7 +2423,7 @@ old_event_end:
                memcpy(ucontext_param->padding, old_ucontext_param->padding,
                                sizeof(ucontext_param->padding));
                /* only type that uses the union */
-               if (old_ucontext_param->ctx == LTTNG_KERNEL_CONTEXT_PERF_COUNTER) {
+               if (old_ucontext_param->ctx == LTTNG_KERNEL_ABI_CONTEXT_PERF_COUNTER) {
                        ucontext_param->u.perf_counter.type =
                                old_ucontext_param->u.perf_counter.type;
                        ucontext_param->u.perf_counter.config =
@@ -2431,27 +2444,27 @@ old_ctx_error_free_param:
 old_ctx_end:
                return ret;
        }
-       case LTTNG_KERNEL_CONTEXT:
+       case LTTNG_KERNEL_ABI_CONTEXT:
        {
-               struct lttng_kernel_context ucontext_param;
+               struct lttng_kernel_abi_context ucontext_param;
 
                if (copy_from_user(&ucontext_param,
-                               (struct lttng_kernel_context __user *) arg,
+                               (struct lttng_kernel_abi_context __user *) arg,
                                sizeof(ucontext_param)))
                        return -EFAULT;
                return lttng_abi_add_context(file,
                                &ucontext_param,
                                &channel->ctx, channel->session);
        }
-       case LTTNG_KERNEL_OLD_ENABLE:
-       case LTTNG_KERNEL_ENABLE:
+       case LTTNG_KERNEL_ABI_OLD_ENABLE:
+       case LTTNG_KERNEL_ABI_ENABLE:
                return lttng_channel_enable(channel);
-       case LTTNG_KERNEL_OLD_DISABLE:
-       case LTTNG_KERNEL_DISABLE:
+       case LTTNG_KERNEL_ABI_OLD_DISABLE:
+       case LTTNG_KERNEL_ABI_DISABLE:
                return lttng_channel_disable(channel);
-       case LTTNG_KERNEL_SYSCALL_MASK:
+       case LTTNG_KERNEL_ABI_SYSCALL_MASK:
                return lttng_channel_syscall_mask(channel,
-                       (struct lttng_kernel_syscall_mask __user *) arg);
+                       (struct lttng_kernel_abi_syscall_mask __user *) arg);
        default:
                return -ENOIOCTLCMD;
        }
@@ -2465,7 +2478,7 @@ old_ctx_end:
  *     @arg: command arg
  *
  *     This ioctl implements lttng commands:
- *      LTTNG_KERNEL_STREAM
+ *      LTTNG_KERNEL_ABI_STREAM
  *              Returns an event stream file descriptor or failure.
  *
  * Channel and event file descriptors also hold a reference on the session.
@@ -2474,8 +2487,8 @@ static
 long lttng_metadata_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        switch (cmd) {
-       case LTTNG_KERNEL_OLD_STREAM:
-       case LTTNG_KERNEL_STREAM:
+       case LTTNG_KERNEL_ABI_OLD_STREAM:
+       case LTTNG_KERNEL_ABI_STREAM:
                return lttng_abi_open_metadata_stream(file);
        default:
                return -ENOIOCTLCMD;
@@ -2553,132 +2566,135 @@ static const struct file_operations lttng_metadata_fops = {
 };
 
 /**
- *     lttng_event_ioctl - lttng syscall through ioctl
+ *     lttng_event_recorder_event_ioctl - lttng syscall through ioctl
  *
  *     @file: the file
  *     @cmd: the command
  *     @arg: command arg
  *
  *     This ioctl implements lttng commands:
- *     LTTNG_KERNEL_CONTEXT
+ *     LTTNG_KERNEL_ABI_CONTEXT
  *             Prepend a context field to each record of this event
- *     LTTNG_KERNEL_ENABLE
+ *     LTTNG_KERNEL_ABI_ENABLE
  *             Enable recording for this event (weak enable)
- *     LTTNG_KERNEL_DISABLE
+ *     LTTNG_KERNEL_ABI_DISABLE
  *             Disable recording for this event (strong disable)
  */
 static
-long lttng_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+long lttng_event_recorder_event_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-       struct lttng_event *event;
-       struct lttng_event_enabler *event_enabler;
-       enum lttng_event_type *evtype = file->private_data;
+       struct lttng_event *event = file->private_data;
 
        switch (cmd) {
-       case LTTNG_KERNEL_OLD_CONTEXT:
+       case LTTNG_KERNEL_ABI_OLD_CONTEXT:
        {
                /* Not implemented */
                return -ENOSYS;
        }
-       case LTTNG_KERNEL_CONTEXT:
+       case LTTNG_KERNEL_ABI_CONTEXT:
        {
                /* Not implemented */
                return -ENOSYS;
        }
-       case LTTNG_KERNEL_OLD_ENABLE:
-       case LTTNG_KERNEL_ENABLE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       event = file->private_data;
-                       return lttng_event_enable(event);
-               case LTTNG_TYPE_ENABLER:
-                       event_enabler = file->private_data;
-                       return lttng_event_enabler_enable(event_enabler);
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
-       case LTTNG_KERNEL_OLD_DISABLE:
-       case LTTNG_KERNEL_DISABLE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       event = file->private_data;
-                       return lttng_event_disable(event);
-               case LTTNG_TYPE_ENABLER:
-                       event_enabler = file->private_data;
-                       return lttng_event_enabler_disable(event_enabler);
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
-       case LTTNG_KERNEL_FILTER:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       return -EINVAL;
-               case LTTNG_TYPE_ENABLER:
-               {
-                       event_enabler = file->private_data;
-                       return lttng_event_enabler_attach_filter_bytecode(
-                               event_enabler,
-                               (struct lttng_kernel_filter_bytecode __user *) arg);
-               }
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
-       case LTTNG_KERNEL_ADD_CALLSITE:
-               switch (*evtype) {
-               case LTTNG_TYPE_EVENT:
-                       event = file->private_data;
-                       return lttng_event_add_callsite(event,
-                               (struct lttng_kernel_event_callsite __user *) arg);
-               case LTTNG_TYPE_ENABLER:
-                       return -EINVAL;
-               default:
-                       WARN_ON_ONCE(1);
-                       return -ENOSYS;
-               }
+       case LTTNG_KERNEL_ABI_OLD_ENABLE:
+       case LTTNG_KERNEL_ABI_ENABLE:
+               return lttng_event_enable(event);
+       case LTTNG_KERNEL_ABI_OLD_DISABLE:
+       case LTTNG_KERNEL_ABI_DISABLE:
+               return lttng_event_disable(event);
+       case LTTNG_KERNEL_ABI_FILTER:
+               return -EINVAL;
+       case LTTNG_KERNEL_ABI_ADD_CALLSITE:
+               return lttng_event_add_callsite(event,
+                       (struct lttng_kernel_abi_event_callsite __user *) arg);
        default:
                return -ENOIOCTLCMD;
        }
 }
 
+/**
+ *     lttng_event_recorder_enabler_ioctl - lttng syscall through ioctl
+ *
+ *     @file: the file
+ *     @cmd: the command
+ *     @arg: command arg
+ *
+ *     This ioctl implements lttng commands:
+ *     LTTNG_KERNEL_ABI_CONTEXT
+ *             Prepend a context field to each record of this event
+ *     LTTNG_KERNEL_ABI_ENABLE
+ *             Enable recording for this event (weak enable)
+ *     LTTNG_KERNEL_ABI_DISABLE
+ *             Disable recording for this event (strong disable)
+ */
 static
-int lttng_event_release(struct inode *inode, struct file *file)
+long lttng_event_recorder_enabler_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-       struct lttng_event *event;
-       struct lttng_event_enabler *event_enabler;
-       enum lttng_event_type *evtype = file->private_data;
-
-       if (!evtype)
-               return 0;
+       struct lttng_event_enabler *event_enabler = file->private_data;
 
-       switch (*evtype) {
-       case LTTNG_TYPE_EVENT:
-               event = file->private_data;
-               if (event)
-                       fput(event->chan->file);
-               break;
-       case LTTNG_TYPE_ENABLER:
-               event_enabler = file->private_data;
-               if (event_enabler)
-                       fput(event_enabler->chan->file);
-               break;
+       switch (cmd) {
+       case LTTNG_KERNEL_ABI_OLD_CONTEXT:
+       {
+               /* Not implemented */
+               return -ENOSYS;
+       }
+       case LTTNG_KERNEL_ABI_CONTEXT:
+       {
+               /* Not implemented */
+               return -ENOSYS;
+       }
+       case LTTNG_KERNEL_ABI_OLD_ENABLE:
+       case LTTNG_KERNEL_ABI_ENABLE:
+               return lttng_event_enabler_enable(event_enabler);
+       case LTTNG_KERNEL_ABI_OLD_DISABLE:
+       case LTTNG_KERNEL_ABI_DISABLE:
+               return lttng_event_enabler_disable(event_enabler);
+       case LTTNG_KERNEL_ABI_FILTER:
+               return lttng_event_enabler_attach_filter_bytecode(
+                       event_enabler,
+                       (struct lttng_kernel_abi_filter_bytecode __user *) arg);
+       case LTTNG_KERNEL_ABI_ADD_CALLSITE:
+               return -EINVAL;
        default:
-               WARN_ON_ONCE(1);
-               break;
+               return -ENOIOCTLCMD;
        }
+}
+
+static
+int lttng_event_recorder_event_release(struct inode *inode, struct file *file)
+{
+       struct lttng_event *event = file->private_data;
 
+       if (event)
+               fput(event->chan->file);
        return 0;
 }
 
-/* TODO: filter control ioctl */
-static const struct file_operations lttng_event_fops = {
+static
+int lttng_event_recorder_enabler_release(struct inode *inode, struct file *file)
+{
+       struct lttng_event_enabler *event_enabler = file->private_data;
+
+       if (event_enabler)
+               fput(event_enabler->chan->file);
+       return 0;
+}
+
+static const struct file_operations lttng_event_recorder_event_fops = {
+       .owner = THIS_MODULE,
+       .release = lttng_event_recorder_event_release,
+       .unlocked_ioctl = lttng_event_recorder_event_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl = lttng_event_recorder_event_ioctl,
+#endif
+};
+
+static const struct file_operations lttng_event_recorder_enabler_fops = {
        .owner = THIS_MODULE,
-       .release = lttng_event_release,
-       .unlocked_ioctl = lttng_event_ioctl,
+       .release = lttng_event_recorder_enabler_release,
+       .unlocked_ioctl = lttng_event_recorder_enabler_ioctl,
 #ifdef CONFIG_COMPAT
-       .compat_ioctl = lttng_event_ioctl,
+       .compat_ioctl = lttng_event_recorder_enabler_ioctl,
 #endif
 };
 
@@ -2705,7 +2721,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                return -EIO;
 
        switch (cmd) {
-       case LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_TIMESTAMP_BEGIN:
        {
                uint64_t ts;
 
@@ -2714,7 +2730,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(ts, arg);
        }
-       case LTTNG_RING_BUFFER_GET_TIMESTAMP_END:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_TIMESTAMP_END:
        {
                uint64_t ts;
 
@@ -2723,7 +2739,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(ts, arg);
        }
-       case LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_EVENTS_DISCARDED:
        {
                uint64_t ed;
 
@@ -2732,7 +2748,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(ed, arg);
        }
-       case LTTNG_RING_BUFFER_GET_CONTENT_SIZE:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_CONTENT_SIZE:
        {
                uint64_t cs;
 
@@ -2741,7 +2757,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(cs, arg);
        }
-       case LTTNG_RING_BUFFER_GET_PACKET_SIZE:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_PACKET_SIZE:
        {
                uint64_t ps;
 
@@ -2750,7 +2766,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(ps, arg);
        }
-       case LTTNG_RING_BUFFER_GET_STREAM_ID:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_STREAM_ID:
        {
                uint64_t si;
 
@@ -2759,7 +2775,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(si, arg);
        }
-       case LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_CURRENT_TIMESTAMP:
        {
                uint64_t ts;
 
@@ -2768,7 +2784,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(ts, arg);
        }
-       case LTTNG_RING_BUFFER_GET_SEQ_NUM:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_SEQ_NUM:
        {
                uint64_t seq;
 
@@ -2777,7 +2793,7 @@ static long lttng_stream_ring_buffer_ioctl(struct file *filp,
                        goto error;
                return put_u64(seq, arg);
        }
-       case LTTNG_RING_BUFFER_INSTANCE_ID:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_INSTANCE_ID:
        {
                uint64_t id;
 
@@ -2809,7 +2825,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                return -EIO;
 
        switch (cmd) {
-       case LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN:
        {
                uint64_t ts;
 
@@ -2818,7 +2834,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(ts, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_TIMESTAMP_END:
        {
                uint64_t ts;
 
@@ -2827,7 +2843,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(ts, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED:
        {
                uint64_t ed;
 
@@ -2836,7 +2852,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(ed, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_CONTENT_SIZE:
        {
                uint64_t cs;
 
@@ -2845,7 +2861,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(cs, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_PACKET_SIZE:
        {
                uint64_t ps;
 
@@ -2854,7 +2870,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(ps, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_STREAM_ID:
        {
                uint64_t si;
 
@@ -2863,7 +2879,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(si, arg);
        }
-       case LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_GET_CURRENT_TIMESTAMP:
        {
                uint64_t ts;
 
@@ -2872,7 +2888,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(ts, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_SEQ_NUM:
        {
                uint64_t seq;
 
@@ -2881,7 +2897,7 @@ static long lttng_stream_ring_buffer_compat_ioctl(struct file *filp,
                        goto error;
                return put_u64(seq, arg);
        }
-       case LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID:
+       case LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_INSTANCE_ID:
        {
                uint64_t id;
 
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