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-rw-r--r--collectors/ebpf.plugin/ebpf.c163
1 files changed, 103 insertions, 60 deletions
diff --git a/collectors/ebpf.plugin/ebpf.c b/collectors/ebpf.plugin/ebpf.c
index 71a13e84..d51d378b 100644
--- a/collectors/ebpf.plugin/ebpf.c
+++ b/collectors/ebpf.plugin/ebpf.c
@@ -6,47 +6,10 @@
#include "ebpf.h"
#include "ebpf_socket.h"
+#include "libnetdata/required_dummies.h"
/*****************************************************************
*
- * FUNCTIONS USED BY NETDATA
- *
- *****************************************************************/
-
-// callback required by eval()
-int health_variable_lookup(const char *variable, uint32_t hash, struct rrdcalc *rc, calculated_number *result)
-{
- UNUSED(variable);
- UNUSED(hash);
- UNUSED(rc);
- UNUSED(result);
- return 0;
-};
-
-void send_statistics(const char *action, const char *action_result, const char *action_data)
-{
- UNUSED(action);
- UNUSED(action_result);
- UNUSED(action_data);
-}
-
-// callbacks required by popen()
-void signals_block(void){};
-void signals_unblock(void){};
-void signals_reset(void){};
-
-// required by get_system_cpus()
-char *netdata_configured_host_prefix = "";
-
-// callback required by fatal()
-void netdata_cleanup_and_exit(int ret)
-{
- exit(ret);
-}
-
-// ----------------------------------------------------------------------
-/*****************************************************************
- *
* GLOBAL VARIABLES
*
*****************************************************************/
@@ -64,7 +27,6 @@ struct config collector_config = { .first_section = NULL,
.rwlock = AVL_LOCK_INITIALIZER } };
int running_on_kernel = 0;
-char kernel_string[64];
int ebpf_nprocs;
int isrh = 0;
uint32_t finalized_threads = 1;
@@ -79,94 +41,127 @@ ebpf_module_t ebpf_modules[] = {
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_process_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &process_config,
- .config_file = NETDATA_PROCESS_CONFIG_FILE},
+ .config_file = NETDATA_PROCESS_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4 | NETDATA_V5_10,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "socket", .config_name = "socket", .enabled = 0, .start_routine = ebpf_socket_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_socket_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &socket_config,
- .config_file = NETDATA_NETWORK_CONFIG_FILE},
+ .config_file = NETDATA_NETWORK_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "cachestat", .config_name = "cachestat", .enabled = 0, .start_routine = ebpf_cachestat_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_cachestat_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &cachestat_config,
- .config_file = NETDATA_CACHESTAT_CONFIG_FILE},
+ .config_file = NETDATA_CACHESTAT_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4 | NETDATA_V5_15,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "sync", .config_name = "sync", .enabled = 0, .start_routine = ebpf_sync_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &sync_config,
- .config_file = NETDATA_SYNC_CONFIG_FILE},
+ .config_file = NETDATA_SYNC_CONFIG_FILE,
+ // All syscalls have the same kernels
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "dc", .config_name = "dc", .enabled = 0, .start_routine = ebpf_dcstat_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_dcstat_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &dcstat_config,
- .config_file = NETDATA_DIRECTORY_DCSTAT_CONFIG_FILE},
+ .config_file = NETDATA_DIRECTORY_DCSTAT_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "swap", .config_name = "swap", .enabled = 0, .start_routine = ebpf_swap_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_swap_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &swap_config,
- .config_file = NETDATA_DIRECTORY_SWAP_CONFIG_FILE},
+ .config_file = NETDATA_DIRECTORY_SWAP_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "vfs", .config_name = "vfs", .enabled = 0, .start_routine = ebpf_vfs_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_vfs_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &vfs_config,
- .config_file = NETDATA_DIRECTORY_VFS_CONFIG_FILE },
+ .config_file = NETDATA_DIRECTORY_VFS_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "filesystem", .config_name = "filesystem", .enabled = 0, .start_routine = ebpf_filesystem_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &fs_config,
- .config_file = NETDATA_FILESYSTEM_CONFIG_FILE},
+ .config_file = NETDATA_FILESYSTEM_CONFIG_FILE,
+ //We are setting kernels as zero, because we load eBPF programs according the kernel running.
+ .kernels = 0, .load = EBPF_LOAD_LEGACY, .targets = NULL },
{ .thread_name = "disk", .config_name = "disk", .enabled = 0, .start_routine = ebpf_disk_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &disk_config,
- .config_file = NETDATA_DISK_CONFIG_FILE},
+ .config_file = NETDATA_DISK_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "mount", .config_name = "mount", .enabled = 0, .start_routine = ebpf_mount_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &mount_config,
- .config_file = NETDATA_MOUNT_CONFIG_FILE},
+ .config_file = NETDATA_MOUNT_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "fd", .config_name = "fd", .enabled = 0, .start_routine = ebpf_fd_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_fd_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &fd_config,
- .config_file = NETDATA_FD_CONFIG_FILE},
+ .config_file = NETDATA_FD_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4 | NETDATA_V5_11,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "hardirq", .config_name = "hardirq", .enabled = 0, .start_routine = ebpf_hardirq_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &hardirq_config,
- .config_file = NETDATA_HARDIRQ_CONFIG_FILE},
+ .config_file = NETDATA_HARDIRQ_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "softirq", .config_name = "softirq", .enabled = 0, .start_routine = ebpf_softirq_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &softirq_config,
- .config_file = NETDATA_SOFTIRQ_CONFIG_FILE},
+ .config_file = NETDATA_SOFTIRQ_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "oomkill", .config_name = "oomkill", .enabled = 0, .start_routine = ebpf_oomkill_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_oomkill_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &oomkill_config,
- .config_file = NETDATA_OOMKILL_CONFIG_FILE},
+ .config_file = NETDATA_OOMKILL_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "shm", .config_name = "shm", .enabled = 0, .start_routine = ebpf_shm_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0,
.apps_routine = ebpf_shm_create_apps_charts, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &shm_config,
- .config_file = NETDATA_DIRECTORY_SHM_CONFIG_FILE},
+ .config_file = NETDATA_DIRECTORY_SHM_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
{ .thread_name = "mdflush", .config_name = "mdflush", .enabled = 0, .start_routine = ebpf_mdflush_thread,
.update_every = EBPF_DEFAULT_UPDATE_EVERY, .global_charts = 1, .apps_charts = CONFIG_BOOLEAN_NO,
.cgroup_charts = CONFIG_BOOLEAN_NO, .mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL,
.pid_map_size = ND_EBPF_DEFAULT_PID_SIZE, .names = NULL, .cfg = &mdflush_config,
- .config_file = NETDATA_DIRECTORY_MDFLUSH_CONFIG_FILE},
- { .thread_name = NULL, .enabled = 0, .start_routine = NULL, .update_every = EBPF_DEFAULT_UPDATE_EVERY,
+ .config_file = NETDATA_DIRECTORY_MDFLUSH_CONFIG_FILE,
+ .kernels = NETDATA_V3_10 | NETDATA_V4_14 | NETDATA_V4_16 | NETDATA_V4_18 | NETDATA_V5_4,
+ .load = EBPF_LOAD_LEGACY, .targets = NULL},
+ { .thread_name = NULL, .enabled = 0, .start_routine = NULL, .update_every = EBPF_DEFAULT_UPDATE_EVERY,
.global_charts = 0, .apps_charts = CONFIG_BOOLEAN_NO, .cgroup_charts = CONFIG_BOOLEAN_NO,
.mode = MODE_ENTRY, .optional = 0, .apps_routine = NULL, .maps = NULL, .pid_map_size = 0, .names = NULL,
- .cfg = NULL, .config_name = NULL},
+ .cfg = NULL, .config_name = NULL, .kernels = 0, .load = EBPF_LOAD_LEGACY, .targets = NULL},
};
// Link with apps.plugin
@@ -181,6 +176,10 @@ pthread_mutex_t mutex_cgroup_shm;
//Network viewer
ebpf_network_viewer_options_t network_viewer_opt;
+// Statistic
+ebpf_plugin_stats_t plugin_statistics = {.core = 0, .legacy = 0, .running = 0, .threads = 0, .tracepoints = 0,
+ .probes = 0, .retprobes = 0, .trampolines = 0};
+
/*****************************************************************
*
* FUNCTIONS USED TO CLEAN MEMORY AND OPERATE SYSTEM FILES
@@ -764,6 +763,20 @@ static inline void ebpf_disable_cgroups()
}
/**
+ * Update Disabled Plugins
+ *
+ * This function calls ebpf_update_stats to update statistics for collector.
+ *
+ * @param em a pointer to `struct ebpf_module`
+ */
+void ebpf_update_disabled_plugin_stats(ebpf_module_t *em)
+{
+ pthread_mutex_lock(&lock);
+ ebpf_update_stats(&plugin_statistics, em);
+ pthread_mutex_unlock(&lock);
+}
+
+/**
* Print help on standard error for user knows how to use the collector.
*/
void ebpf_print_help()
@@ -829,6 +842,10 @@ void ebpf_print_help()
" [-]-swap Enable chart related to swap run time.\n"
"\n"
" [-]-vfs Enable chart related to vfs run time.\n"
+ "\n"
+ " [-]-legacy Load legacy eBPF programs.\n"
+ "\n"
+ " [-]-core Use CO-RE when available(Working in progress).\n"
"\n",
VERSION,
(year >= 116) ? year + 1900 : 2020);
@@ -1339,7 +1356,6 @@ void set_global_variables()
isrh = get_redhat_release();
pid_max = get_system_pid_max();
running_on_kernel = ebpf_get_kernel_version();
- ebpf_update_kernel(kernel_string, 63, isrh, running_on_kernel);
}
/**
@@ -1356,6 +1372,19 @@ static inline void ebpf_load_thread_config()
}
/**
+ * Set Load mode
+ *
+ * @param load default load mode.
+ */
+static inline void ebpf_set_load_mode(netdata_ebpf_load_mode_t load)
+{
+ int i;
+ for (i = 0; ebpf_modules[i].thread_name; i++) {
+ ebpf_modules[i].load = load;
+ }
+}
+
+/**
* Parse arguments given from user.
*
* @param argc the number of arguments
@@ -1391,6 +1420,8 @@ static void ebpf_parse_args(int argc, char **argv)
{"help", no_argument, 0, 0 },
{"global", no_argument, 0, 0 },
{"return", no_argument, 0, 0 },
+ {"legacy", no_argument, 0, 0 },
+ {"core", no_argument, 0, 0 },
{0, 0, 0, 0}
};
@@ -1567,6 +1598,20 @@ static void ebpf_parse_args(int argc, char **argv)
#endif
break;
}
+ case EBPF_OPTION_LEGACY: {
+ ebpf_set_load_mode(EBPF_LOAD_LEGACY);
+#ifdef NETDATA_INTERNAL_CHECKS
+ info("EBPF running with \"LEGACY\" code, because it was started with the option \"[-]-legacy\".");
+#endif
+ break;
+ }
+ case EBPF_OPTION_CORE: {
+ ebpf_set_load_mode(EBPF_LOAD_CORE);
+#ifdef NETDATA_INTERNAL_CHECKS
+ info("EBPF running with \"CO-RE\" code, because it was started with the option \"[-]-core\".");
+#endif
+ break;
+ }
default: {
break;
}
@@ -1579,8 +1624,6 @@ static void ebpf_parse_args(int argc, char **argv)
if (disable_cgroups)
ebpf_disable_cgroups();
-
- ebpf_enable_all_charts(disable_apps, disable_cgroups);
}
if (select_threads) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 05:17:36 +0000