blob: eb54754c65e598cb4ff80809b085e97327042ca8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
|
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef NETDATA_EBPF_APPS_H
#define NETDATA_EBPF_APPS_H 1
#include "libnetdata/threads/threads.h"
#include "libnetdata/locks/locks.h"
#include "libnetdata/avl/avl.h"
#include "libnetdata/clocks/clocks.h"
#include "libnetdata/config/appconfig.h"
#include "libnetdata/ebpf/ebpf.h"
#define NETDATA_APPS_FAMILY "apps"
#define NETDATA_APPS_FILE_GROUP "file (eBPF)"
#define NETDATA_APPS_VFS_GROUP "vfs (eBPF)"
#define NETDATA_APPS_PROCESS_GROUP "process (eBPF)"
#define NETDATA_APPS_NET_GROUP "net (eBPF)"
#define NETDATA_APPS_CACHESTAT_GROUP "page cache (eBPF)"
#include "ebpf_process.h"
#include "ebpf_cachestat.h"
#include "ebpf_sync.h"
#define MAX_COMPARE_NAME 100
#define MAX_NAME 100
// ----------------------------------------------------------------------------
// process_pid_stat
//
// Fields read from the kernel ring for a specific PID
//
typedef struct process_pid_stat {
uint64_t pid_tgid; // Unique identifier
uint32_t pid; // process id
// Count number of calls done for specific function
uint32_t open_call;
uint32_t write_call;
uint32_t writev_call;
uint32_t read_call;
uint32_t readv_call;
uint32_t unlink_call;
uint32_t exit_call;
uint32_t release_call;
uint32_t fork_call;
uint32_t clone_call;
uint32_t close_call;
// Count number of bytes written or read
uint64_t write_bytes;
uint64_t writev_bytes;
uint64_t readv_bytes;
uint64_t read_bytes;
// Count number of errors for the specified function
uint32_t open_err;
uint32_t write_err;
uint32_t writev_err;
uint32_t read_err;
uint32_t readv_err;
uint32_t unlink_err;
uint32_t fork_err;
uint32_t clone_err;
uint32_t close_err;
} process_pid_stat_t;
// ----------------------------------------------------------------------------
// socket_bandwidth
//
// Fields read from the kernel ring for a specific PID
//
typedef struct socket_bandwidth {
uint64_t first;
uint64_t ct;
uint64_t sent;
uint64_t received;
unsigned char removed;
} socket_bandwidth_t;
// ----------------------------------------------------------------------------
// pid_stat
//
// structure to store data for each process running
// see: man proc for the description of the fields
struct pid_fd {
int fd;
#ifndef __FreeBSD__
ino_t inode;
char *filename;
uint32_t link_hash;
size_t cache_iterations_counter;
size_t cache_iterations_reset;
#endif
};
struct target {
char compare[MAX_COMPARE_NAME + 1];
uint32_t comparehash;
size_t comparelen;
char id[MAX_NAME + 1];
uint32_t idhash;
char name[MAX_NAME + 1];
uid_t uid;
gid_t gid;
// Page cache statistic per process
netdata_publish_cachestat_t cachestat;
/* These variables are not necessary for eBPF collector
kernel_uint_t minflt;
kernel_uint_t cminflt;
kernel_uint_t majflt;
kernel_uint_t cmajflt;
kernel_uint_t utime;
kernel_uint_t stime;
kernel_uint_t gtime;
kernel_uint_t cutime;
kernel_uint_t cstime;
kernel_uint_t cgtime;
kernel_uint_t num_threads;
// kernel_uint_t rss;
kernel_uint_t status_vmsize;
kernel_uint_t status_vmrss;
kernel_uint_t status_vmshared;
kernel_uint_t status_rssfile;
kernel_uint_t status_rssshmem;
kernel_uint_t status_vmswap;
kernel_uint_t io_logical_bytes_read;
kernel_uint_t io_logical_bytes_written;
// kernel_uint_t io_read_calls;
// kernel_uint_t io_write_calls;
kernel_uint_t io_storage_bytes_read;
kernel_uint_t io_storage_bytes_written;
// kernel_uint_t io_cancelled_write_bytes;
int *target_fds;
int target_fds_size;
kernel_uint_t openfiles;
kernel_uint_t openpipes;
kernel_uint_t opensockets;
kernel_uint_t openinotifies;
kernel_uint_t openeventfds;
kernel_uint_t opentimerfds;
kernel_uint_t opensignalfds;
kernel_uint_t openeventpolls;
kernel_uint_t openother;
*/
kernel_uint_t starttime;
kernel_uint_t collected_starttime;
/*
kernel_uint_t uptime_min;
kernel_uint_t uptime_sum;
kernel_uint_t uptime_max;
*/
unsigned int processes; // how many processes have been merged to this
int exposed; // if set, we have sent this to netdata
int hidden; // if set, we set the hidden flag on the dimension
int debug_enabled;
int ends_with;
int starts_with; // if set, the compare string matches only the
// beginning of the command
struct pid_on_target *root_pid; // list of aggregated pids for target debugging
struct target *target; // the one that will be reported to netdata
struct target *next;
};
extern struct target *apps_groups_default_target;
extern struct target *apps_groups_root_target;
extern struct target *users_root_target;
extern struct target *groups_root_target;
struct pid_stat {
int32_t pid;
char comm[MAX_COMPARE_NAME + 1];
char *cmdline;
uint32_t log_thrown;
// char state;
int32_t ppid;
// int32_t pgrp;
// int32_t session;
// int32_t tty_nr;
// int32_t tpgid;
// uint64_t flags;
/*
// these are raw values collected
kernel_uint_t minflt_raw;
kernel_uint_t cminflt_raw;
kernel_uint_t majflt_raw;
kernel_uint_t cmajflt_raw;
kernel_uint_t utime_raw;
kernel_uint_t stime_raw;
kernel_uint_t gtime_raw; // guest_time
kernel_uint_t cutime_raw;
kernel_uint_t cstime_raw;
kernel_uint_t cgtime_raw; // cguest_time
// these are rates
kernel_uint_t minflt;
kernel_uint_t cminflt;
kernel_uint_t majflt;
kernel_uint_t cmajflt;
kernel_uint_t utime;
kernel_uint_t stime;
kernel_uint_t gtime;
kernel_uint_t cutime;
kernel_uint_t cstime;
kernel_uint_t cgtime;
// int64_t priority;
// int64_t nice;
int32_t num_threads;
// int64_t itrealvalue;
kernel_uint_t collected_starttime;
// kernel_uint_t vsize;
// kernel_uint_t rss;
// kernel_uint_t rsslim;
// kernel_uint_t starcode;
// kernel_uint_t endcode;
// kernel_uint_t startstack;
// kernel_uint_t kstkesp;
// kernel_uint_t kstkeip;
// uint64_t signal;
// uint64_t blocked;
// uint64_t sigignore;
// uint64_t sigcatch;
// uint64_t wchan;
// uint64_t nswap;
// uint64_t cnswap;
// int32_t exit_signal;
// int32_t processor;
// uint32_t rt_priority;
// uint32_t policy;
// kernel_uint_t delayacct_blkio_ticks;
uid_t uid;
gid_t gid;
kernel_uint_t status_vmsize;
kernel_uint_t status_vmrss;
kernel_uint_t status_vmshared;
kernel_uint_t status_rssfile;
kernel_uint_t status_rssshmem;
kernel_uint_t status_vmswap;
#ifndef __FreeBSD__
ARL_BASE *status_arl;
#endif
kernel_uint_t io_logical_bytes_read_raw;
kernel_uint_t io_logical_bytes_written_raw;
// kernel_uint_t io_read_calls_raw;
// kernel_uint_t io_write_calls_raw;
kernel_uint_t io_storage_bytes_read_raw;
kernel_uint_t io_storage_bytes_written_raw;
// kernel_uint_t io_cancelled_write_bytes_raw;
kernel_uint_t io_logical_bytes_read;
kernel_uint_t io_logical_bytes_written;
// kernel_uint_t io_read_calls;
// kernel_uint_t io_write_calls;
kernel_uint_t io_storage_bytes_read;
kernel_uint_t io_storage_bytes_written;
// kernel_uint_t io_cancelled_write_bytes;
*/
struct pid_fd *fds; // array of fds it uses
size_t fds_size; // the size of the fds array
int children_count; // number of processes directly referencing this
unsigned char keep : 1; // 1 when we need to keep this process in memory even after it exited
int keeploops; // increases by 1 every time keep is 1 and updated 0
unsigned char updated : 1; // 1 when the process is currently running
unsigned char updated_twice : 1; // 1 when the process was running in the previous iteration
unsigned char merged : 1; // 1 when it has been merged to its parent
unsigned char read : 1; // 1 when we have already read this process for this iteration
int sortlist; // higher numbers = top on the process tree
// each process gets a unique number
struct target *target; // app_groups.conf targets
struct target *user_target; // uid based targets
struct target *group_target; // gid based targets
usec_t stat_collected_usec;
usec_t last_stat_collected_usec;
usec_t io_collected_usec;
usec_t last_io_collected_usec;
kernel_uint_t uptime;
char *fds_dirname; // the full directory name in /proc/PID/fd
char *stat_filename;
char *status_filename;
char *io_filename;
char *cmdline_filename;
struct pid_stat *parent;
struct pid_stat *prev;
struct pid_stat *next;
};
// ----------------------------------------------------------------------------
// target
//
// target is the structure that processes are aggregated to be reported
// to netdata.
//
// - Each entry in /etc/apps_groups.conf creates a target.
// - Each user and group used by a process in the system, creates a target.
struct pid_on_target {
int32_t pid;
struct pid_on_target *next;
};
// ----------------------------------------------------------------------------
// Structures used to read information from kernel ring
typedef struct ebpf_process_stat {
uint64_t pid_tgid;
uint32_t pid;
//Counter
uint32_t open_call;
uint32_t write_call;
uint32_t writev_call;
uint32_t read_call;
uint32_t readv_call;
uint32_t unlink_call;
uint32_t exit_call;
uint32_t release_call;
uint32_t fork_call;
uint32_t clone_call;
uint32_t close_call;
//Accumulator
uint64_t write_bytes;
uint64_t writev_bytes;
uint64_t readv_bytes;
uint64_t read_bytes;
//Counter
uint32_t open_err;
uint32_t write_err;
uint32_t writev_err;
uint32_t read_err;
uint32_t readv_err;
uint32_t unlink_err;
uint32_t fork_err;
uint32_t clone_err;
uint32_t close_err;
uint8_t removeme;
} ebpf_process_stat_t;
typedef struct ebpf_bandwidth {
uint32_t pid;
uint64_t first; // First timestamp
uint64_t ct; // Last timestamp
uint64_t bytes_sent; // Bytes sent
uint64_t bytes_received; // Bytes received
uint64_t call_tcp_sent; // Number of times tcp_sendmsg was called
uint64_t call_tcp_received; // Number of times tcp_cleanup_rbuf was called
uint64_t retransmit; // Number of times tcp_retransmit was called
uint64_t call_udp_sent; // Number of times udp_sendmsg was called
uint64_t call_udp_received; // Number of times udp_recvmsg was called
} ebpf_bandwidth_t;
/**
* Internal function used to write debug messages.
*
* @param fmt the format to create the message.
* @param ... the arguments to fill the format.
*/
static inline void debug_log_int(const char *fmt, ...)
{
va_list args;
fprintf(stderr, "apps.plugin: ");
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
fputc('\n', stderr);
|