Add userspace vuid/vgid contexts

[lttng-ust.git] / include / lttng / ust-events.h

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index f3ade45c43558acddedefc5baf33d0a59798bef3..893096827802f92ddb1550ca06ff32ce0322a4f5 100644 (file)
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -39,6 +39,10 @@
 #include <urcu/ref.h>
 #include <pthread.h>
 
+#ifndef LTTNG_PACKED
+#error "LTTNG_PACKED should be defined"
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -101,11 +105,25 @@ enum lttng_string_encodings {
        NR_STRING_ENCODINGS,
 };
 
+struct lttng_enum_value {
+       unsigned long long value;
+       unsigned int signedness:1;
+};
+
+enum lttng_enum_entry_options {
+       LTTNG_ENUM_ENTRY_OPTION_IS_AUTO = 1U << 0,
+};
+
 #define LTTNG_UST_ENUM_ENTRY_PADDING   16
 struct lttng_enum_entry {
-       unsigned long long start, end;  /* start and end are inclusive */
+       struct lttng_enum_value start, end; /* start and end are inclusive */
        const char *string;
-       char padding[LTTNG_UST_ENUM_ENTRY_PADDING];
+       union {
+               struct {
+                       unsigned int options;
+               } LTTNG_PACKED extra;
+               char padding[LTTNG_UST_ENUM_ENTRY_PADDING];
+       } u;
 };
 
 #define __type_integer(_type, _byte_order, _base, _encoding)   \
@@ -328,7 +346,7 @@ struct lttng_probe_desc {
 /* Data structures used by the tracer. */
 
 enum lttng_enabler_type {
-       LTTNG_ENABLER_WILDCARD,
+       LTTNG_ENABLER_STAR_GLOB,
        LTTNG_ENABLER_EVENT,
 };
 
@@ -409,6 +427,7 @@ struct lttng_bytecode_runtime {
        int link_failed;
        struct cds_list_head node;      /* list of bytecode runtime in event */
        struct lttng_session *session;
+       struct lttng_event *event;
 };
 
 /*
@@ -475,7 +494,8 @@ struct lttng_channel_ops {
                        unsigned int read_timer_interval,
                        unsigned char *uuid,
                        uint32_t chan_id,
-                       const int *stream_fds, int nr_stream_fds);
+                       const int *stream_fds, int nr_stream_fds,
+                       int64_t blocking_timeout);
        void (*channel_destroy)(struct lttng_channel *chan);
        union {
                void *_deprecated1;
@@ -601,6 +621,7 @@ struct lttng_transport {
 struct lttng_session *lttng_session_create(void);
 int lttng_session_enable(struct lttng_session *session);
 int lttng_session_disable(struct lttng_session *session);
+int lttng_session_statedump(struct lttng_session *session);
 void lttng_session_destroy(struct lttng_session *session);
 
 struct lttng_channel *lttng_channel_create(struct lttng_session *session,
@@ -629,6 +650,7 @@ int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler,
                struct lttng_ust_excluder_node *excluder);
 
 int lttng_attach_context(struct lttng_ust_context *context_param,
+               union ust_args *uargs,
                struct lttng_ctx **ctx, struct lttng_session *session);
 int lttng_session_context_init(struct lttng_ctx **ctx);
 
@@ -639,6 +661,7 @@ void synchronize_trace(void);
 
 int lttng_probe_register(struct lttng_probe_desc *desc);
 void lttng_probe_unregister(struct lttng_probe_desc *desc);
+void lttng_probe_provider_unregister_events(struct lttng_probe_desc *desc);
 int lttng_fix_pending_events(void);
 int lttng_probes_init(void);
 void lttng_probes_exit(void);
@@ -656,8 +679,35 @@ int lttng_add_procname_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_ip_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_cpu_id_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_dyntest_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vuid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_veuid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vsuid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vgid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vegid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vsgid_to_ctx(struct lttng_ctx **ctx);
 void lttng_context_vtid_reset(void);
 void lttng_context_vpid_reset(void);
+void lttng_context_procname_reset(void);
+void lttng_context_cgroup_ns_reset(void);
+void lttng_context_ipc_ns_reset(void);
+void lttng_context_mnt_ns_reset(void);
+void lttng_context_net_ns_reset(void);
+void lttng_context_pid_ns_reset(void);
+void lttng_context_user_ns_reset(void);
+void lttng_context_uts_ns_reset(void);
+void lttng_context_vuid_reset(void);
+void lttng_context_veuid_reset(void);
+void lttng_context_vsuid_reset(void);
+void lttng_context_vgid_reset(void);
+void lttng_context_vegid_reset(void);
+void lttng_context_vsgid_reset(void);
 
 #ifdef LTTNG_UST_HAVE_PERF_EVENT
 int lttng_add_perf_counter_to_ctx(uint32_t type,
@@ -713,8 +763,17 @@ int lttng_session_active(void);
 typedef int (*t_statedump_func_ptr)(struct lttng_session *session);
 void lttng_handle_pending_statedump(void *owner);
 struct cds_list_head *_lttng_get_sessions(void);
-struct lttng_enum *lttng_ust_enum_get(struct lttng_session *session,
-               const char *enum_name);
+
+struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session,
+               const struct lttng_enum_desc *enum_desc);
+
+void lttng_ust_dl_update(void *ip);
+void lttng_ust_fixup_fd_tracker_tls(void);
+
+/* For backward compatibility. Leave those exported symbols in place. */
+extern struct lttng_ctx *lttng_static_ctx;
+void lttng_context_init(void);
+void lttng_context_exit(void);
 
 #ifdef __cplusplus
 }