suricata
runmode-af-packet.c
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1 /* Copyright (C) 2011-2020 Open Information Security Foundation
2  *
3  * You can copy, redistribute or modify this Program under the terms of
4  * the GNU General Public License version 2 as published by the Free
5  * Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * version 2 along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15  * 02110-1301, USA.
16  */
17 
18 /**
19  * \ingroup afppacket
20  *
21  * @{
22  */
23 
24 /**
25  * \file
26  *
27  * \author Eric Leblond <eric@regit.org>
28  *
29  * AF_PACKET socket runmode
30  *
31  */
32 
33 #include "suricata-common.h"
34 #include "tm-threads.h"
35 #include "conf.h"
36 #include "runmodes.h"
37 #include "runmode-af-packet.h"
38 #include "output.h"
39 #include "log-httplog.h"
40 #include "detect-engine-mpm.h"
41 
42 #include "alert-fastlog.h"
43 #include "alert-prelude.h"
44 #include "alert-debuglog.h"
45 
46 #include "flow-bypass.h"
47 
48 #include "util-debug.h"
49 #include "util-time.h"
50 #include "util-cpu.h"
51 #include "util-affinity.h"
52 #include "util-device.h"
53 #include "util-runmodes.h"
54 #include "util-ioctl.h"
55 #include "util-ebpf.h"
56 #include "util-byte.h"
57 
58 #include "source-af-packet.h"
59 
60 extern int max_pending_packets;
61 
62 const char *RunModeAFPGetDefaultMode(void)
63 {
64  return "workers";
65 }
66 
68 {
70  "Single threaded af-packet mode",
73  "Workers af-packet mode, each thread does all"
74  " tasks from acquisition to logging",
77  "Multi socket AF_PACKET mode. Packets from "
78  "each flow are assigned to a single detect "
79  "thread.",
81  return;
82 }
83 
84 
85 #ifdef HAVE_AF_PACKET
86 
87 static void AFPDerefConfig(void *conf)
88 {
89  AFPIfaceConfig *pfp = (AFPIfaceConfig *)conf;
90  /* Pcap config is used only once but cost of this low. */
91  if (SC_ATOMIC_SUB(pfp->ref, 1) == 1) {
92  SCFree(pfp);
93  }
94 }
95 
96 /* if cluster id is not set, assign it automagically, uniq value per
97  * interface. */
98 static int cluster_id_auto = 1;
99 
100 /**
101  * \brief extract information from config file
102  *
103  * The returned structure will be freed by the thread init function.
104  * This is thus necessary to or copy the structure before giving it
105  * to thread or to reparse the file for each thread (and thus have
106  * new structure.
107  *
108  * \return a AFPIfaceConfig corresponding to the interface name
109  */
110 static void *ParseAFPConfig(const char *iface)
111 {
112  const char *threadsstr = NULL;
113  ConfNode *if_root;
114  ConfNode *if_default = NULL;
115  ConfNode *af_packet_node;
116  const char *tmpclusterid;
117  const char *tmpctype;
118  const char *copymodestr;
119  intmax_t value;
120  int boolval;
121  const char *bpf_filter = NULL;
122  const char *out_iface = NULL;
123  int cluster_type = PACKET_FANOUT_HASH;
124  const char *ebpf_file = NULL;
125  const char *active_runmode = RunmodeGetActive();
126 
127  if (iface == NULL) {
128  return NULL;
129  }
130 
131  AFPIfaceConfig *aconf = SCCalloc(1, sizeof(*aconf));
132  if (unlikely(aconf == NULL)) {
133  return NULL;
134  }
135 
136  strlcpy(aconf->iface, iface, sizeof(aconf->iface));
137  aconf->threads = 0;
138  SC_ATOMIC_INIT(aconf->ref);
139  (void) SC_ATOMIC_ADD(aconf->ref, 1);
140  aconf->buffer_size = 0;
141  aconf->cluster_id = 1;
142  aconf->cluster_type = cluster_type | PACKET_FANOUT_FLAG_DEFRAG;
143  aconf->promisc = 1;
145  aconf->DerefFunc = AFPDerefConfig;
146  aconf->flags = AFP_RING_MODE;
147  aconf->bpf_filter = NULL;
148  aconf->ebpf_lb_file = NULL;
149  aconf->ebpf_lb_fd = -1;
150  aconf->ebpf_filter_file = NULL;
151  aconf->ebpf_filter_fd = -1;
152  aconf->out_iface = NULL;
153  aconf->copy_mode = AFP_COPY_MODE_NONE;
154  aconf->block_timeout = 10;
155  aconf->block_size = getpagesize() << AFP_BLOCK_SIZE_DEFAULT_ORDER;
156 #ifdef HAVE_PACKET_EBPF
157  aconf->ebpf_t_config.cpus_count = UtilCpuGetNumProcessorsConfigured();
158 #endif
159 
160  if (ConfGet("bpf-filter", &bpf_filter) == 1) {
161  if (strlen(bpf_filter) > 0) {
162  aconf->bpf_filter = bpf_filter;
163  SCLogConfig("Going to use command-line provided bpf filter '%s'",
164  aconf->bpf_filter);
165  }
166  }
167 
168  /* Find initial node */
169  af_packet_node = ConfGetNode("af-packet");
170  if (af_packet_node == NULL) {
171  SCLogInfo("unable to find af-packet config using default values");
172  goto finalize;
173  }
174 
175  if_root = ConfFindDeviceConfig(af_packet_node, iface);
176  if_default = ConfFindDeviceConfig(af_packet_node, "default");
177 
178  if (if_root == NULL && if_default == NULL) {
179  SCLogInfo("unable to find af-packet config for "
180  "interface \"%s\" or \"default\", using default values",
181  iface);
182  goto finalize;
183  }
184 
185  /* If there is no setting for current interface use default one as main iface */
186  if (if_root == NULL) {
187  if_root = if_default;
188  if_default = NULL;
189  }
190 
191  if (active_runmode && !strcmp("single", active_runmode)) {
192  aconf->threads = 1;
193  } else if (ConfGetChildValueWithDefault(if_root, if_default, "threads", &threadsstr) != 1) {
194  aconf->threads = 0;
195  } else {
196  if (threadsstr != NULL) {
197  if (strcmp(threadsstr, "auto") == 0) {
198  aconf->threads = 0;
199  } else {
200  if (StringParseInt32(&aconf->threads, 10, 0, (const char *)threadsstr) < 0) {
201  SCLogWarning(SC_ERR_INVALID_VALUE, "Invalid number of "
202  "threads, resetting to default");
203  aconf->threads = 0;
204  }
205  }
206  }
207  }
208 
209  if (ConfGetChildValueWithDefault(if_root, if_default, "copy-iface", &out_iface) == 1) {
210  if (strlen(out_iface) > 0) {
211  aconf->out_iface = out_iface;
212  }
213  }
214 
215  if (ConfGetChildValueBoolWithDefault(if_root, if_default, "use-mmap", (int *)&boolval) == 1) {
216  if (!boolval) {
217  SCLogConfig("Disabling mmaped capture on iface %s",
218  aconf->iface);
219  aconf->flags &= ~(AFP_RING_MODE|AFP_TPACKET_V3);
220  }
221  }
222 
223  if (aconf->flags & AFP_RING_MODE) {
224  (void)ConfGetChildValueBoolWithDefault(if_root, if_default,
225  "mmap-locked", (int *)&boolval);
226  if (boolval) {
227  SCLogConfig("Enabling locked memory for mmap on iface %s",
228  aconf->iface);
229  aconf->flags |= AFP_MMAP_LOCKED;
230  }
231 
232  if (ConfGetChildValueBoolWithDefault(if_root, if_default,
233  "tpacket-v3", (int *)&boolval) == 1)
234  {
235  if (boolval) {
236  if (strcasecmp(RunmodeGetActive(), "workers") == 0) {
237 #ifdef HAVE_TPACKET_V3
238  SCLogConfig("Enabling tpacket v3 capture on iface %s",
239  aconf->iface);
240  aconf->flags |= AFP_TPACKET_V3;
241 #else
242  SCLogNotice("System too old for tpacket v3 switching to v2");
243  aconf->flags &= ~AFP_TPACKET_V3;
244 #endif
245  } else {
247  "tpacket v3 is only implemented for 'workers' runmode."
248  " Switching to tpacket v2.");
249  aconf->flags &= ~AFP_TPACKET_V3;
250  }
251  } else {
252  aconf->flags &= ~AFP_TPACKET_V3;
253  }
254  }
255 
256  (void)ConfGetChildValueBoolWithDefault(if_root, if_default,
257  "use-emergency-flush", (int *)&boolval);
258  if (boolval) {
259  SCLogConfig("Enabling ring emergency flush on iface %s",
260  aconf->iface);
261  aconf->flags |= AFP_EMERGENCY_MODE;
262  }
263  }
264 
265  aconf->copy_mode = AFP_COPY_MODE_NONE;
266  if (ConfGetChildValueWithDefault(if_root, if_default, "copy-mode", &copymodestr) == 1) {
267  if (aconf->out_iface == NULL) {
268  SCLogInfo("Copy mode activated but no destination"
269  " iface. Disabling feature");
270  } else if (!(aconf->flags & AFP_RING_MODE)) {
271  SCLogInfo("Copy mode activated but use-mmap "
272  "set to no. Disabling feature");
273  } else if (strlen(copymodestr) <= 0) {
274  aconf->out_iface = NULL;
275  } else if (strcmp(copymodestr, "ips") == 0) {
276  SCLogInfo("AF_PACKET IPS mode activated %s->%s",
277  iface,
278  aconf->out_iface);
279  aconf->copy_mode = AFP_COPY_MODE_IPS;
280  if (aconf->flags & AFP_TPACKET_V3) {
281  SCLogWarning(SC_ERR_RUNMODE, "Using tpacket_v3 in IPS mode will result in high latency");
282  }
283  } else if (strcmp(copymodestr, "tap") == 0) {
284  SCLogInfo("AF_PACKET TAP mode activated %s->%s",
285  iface,
286  aconf->out_iface);
287  aconf->copy_mode = AFP_COPY_MODE_TAP;
288  if (aconf->flags & AFP_TPACKET_V3) {
289  SCLogWarning(SC_ERR_RUNMODE, "Using tpacket_v3 in TAP mode will result in high latency");
290  }
291  } else {
292  SCLogInfo("Invalid mode (not in tap, ips)");
293  }
294  }
295 
296  if (ConfGetChildValueWithDefault(if_root, if_default, "cluster-id", &tmpclusterid) != 1) {
297  aconf->cluster_id = (uint16_t)(cluster_id_auto++);
298  } else {
299  if (StringParseUint16(&aconf->cluster_id, 10, 0, (const char *)tmpclusterid) < 0) {
300  SCLogWarning(SC_ERR_INVALID_VALUE, "Invalid cluster_id, resetting to 0");
301  aconf->cluster_id = 0;
302  }
303  SCLogDebug("Going to use cluster-id %" PRIu16, aconf->cluster_id);
304  }
305 
306  if (ConfGetChildValueWithDefault(if_root, if_default, "cluster-type", &tmpctype) != 1) {
307  /* default to our safest choice: flow hashing + defrag enabled */
309  cluster_type = PACKET_FANOUT_HASH;
310  } else if (strcmp(tmpctype, "cluster_round_robin") == 0) {
311  SCLogConfig("Using round-robin cluster mode for AF_PACKET (iface %s)",
312  aconf->iface);
314  cluster_type = PACKET_FANOUT_LB;
315  } else if (strcmp(tmpctype, "cluster_flow") == 0) {
316  /* In hash mode, we also ask for defragmentation needed to
317  * compute the hash */
318  uint16_t defrag = 0;
319  int conf_val = 0;
320  SCLogConfig("Using flow cluster mode for AF_PACKET (iface %s)",
321  aconf->iface);
322  ConfGetChildValueBoolWithDefault(if_root, if_default, "defrag", &conf_val);
323  if (conf_val) {
324  SCLogConfig("Using defrag kernel functionality for AF_PACKET (iface %s)",
325  aconf->iface);
326  defrag = PACKET_FANOUT_FLAG_DEFRAG;
327  }
328  aconf->cluster_type = PACKET_FANOUT_HASH | defrag;
329  cluster_type = PACKET_FANOUT_HASH;
330  } else if (strcmp(tmpctype, "cluster_cpu") == 0) {
331  SCLogConfig("Using cpu cluster mode for AF_PACKET (iface %s)",
332  aconf->iface);
334  cluster_type = PACKET_FANOUT_CPU;
335  } else if (strcmp(tmpctype, "cluster_qm") == 0) {
336  SCLogConfig("Using queue based cluster mode for AF_PACKET (iface %s)",
337  aconf->iface);
339  cluster_type = PACKET_FANOUT_QM;
340  } else if (strcmp(tmpctype, "cluster_random") == 0) {
341  SCLogConfig("Using random based cluster mode for AF_PACKET (iface %s)",
342  aconf->iface);
344  cluster_type = PACKET_FANOUT_RND;
345  } else if (strcmp(tmpctype, "cluster_rollover") == 0) {
346  SCLogConfig("Using rollover based cluster mode for AF_PACKET (iface %s)",
347  aconf->iface);
348  SCLogWarning(SC_WARN_UNCOMMON, "Rollover mode is causing severe flow "
349  "tracking issues, use it at your own risk.");
351  cluster_type = PACKET_FANOUT_ROLLOVER;
352 #ifdef HAVE_PACKET_EBPF
353  } else if (strcmp(tmpctype, "cluster_ebpf") == 0) {
354  SCLogInfo("Using ebpf based cluster mode for AF_PACKET (iface %s)",
355  aconf->iface);
356  aconf->cluster_type = PACKET_FANOUT_EBPF;
357  cluster_type = PACKET_FANOUT_EBPF;
358 #endif
359  } else {
360  SCLogWarning(SC_ERR_INVALID_CLUSTER_TYPE,"invalid cluster-type %s",tmpctype);
361  }
362 
363  int conf_val = 0;
364  ConfGetChildValueBoolWithDefault(if_root, if_default, "rollover", &conf_val);
365  if (conf_val) {
366  SCLogConfig("Using rollover kernel functionality for AF_PACKET (iface %s)",
367  aconf->iface);
369  SCLogWarning(SC_WARN_UNCOMMON, "Rollover option is causing severe flow "
370  "tracking issues, use it at your own risk.");
371  }
372 
373  /*load af_packet bpf filter*/
374  /* command line value has precedence */
375  if (ConfGet("bpf-filter", &bpf_filter) != 1) {
376  if (ConfGetChildValueWithDefault(if_root, if_default, "bpf-filter", &bpf_filter) == 1) {
377  if (strlen(bpf_filter) > 0) {
378  aconf->bpf_filter = bpf_filter;
379  SCLogConfig("Going to use bpf filter %s", aconf->bpf_filter);
380  }
381  }
382  }
383 
384  if (ConfGetChildValueWithDefault(if_root, if_default, "ebpf-lb-file", &ebpf_file) != 1) {
385  aconf->ebpf_lb_file = NULL;
386  } else {
387 #ifdef HAVE_PACKET_EBPF
388  SCLogConfig("af-packet will use '%s' as eBPF load balancing file",
389  ebpf_file);
390  aconf->ebpf_lb_file = ebpf_file;
391  aconf->ebpf_t_config.flags |= EBPF_SOCKET_FILTER;
392 #endif
393  }
394 
395 #ifdef HAVE_PACKET_EBPF
396  boolval = false;
397  if (ConfGetChildValueBoolWithDefault(if_root, if_default, "pinned-maps", (int *)&boolval) == 1) {
398  if (boolval) {
399  SCLogConfig("Using pinned maps on iface %s",
400  aconf->iface);
401  aconf->ebpf_t_config.flags |= EBPF_PINNED_MAPS;
402  }
403  const char *pinned_maps_name = NULL;
404  if (ConfGetChildValueWithDefault(if_root, if_default,
405  "pinned-maps-name",
406  &pinned_maps_name) != 1) {
407  aconf->ebpf_t_config.pinned_maps_name = pinned_maps_name;
408  } else {
409  aconf->ebpf_t_config.pinned_maps_name = NULL;
410  }
411  } else {
412  aconf->ebpf_t_config.pinned_maps_name = NULL;
413  }
414 #endif
415 
416 #ifdef HAVE_PACKET_EBPF
417  /* One shot loading of the eBPF file */
418  if (aconf->ebpf_lb_file && cluster_type == PACKET_FANOUT_EBPF) {
419  int ret = EBPFLoadFile(aconf->iface, aconf->ebpf_lb_file, "loadbalancer",
420  &aconf->ebpf_lb_fd,
421  &aconf->ebpf_t_config);
422  if (ret != 0) {
423  SCLogWarning(SC_ERR_INVALID_VALUE, "Error when loading eBPF lb file");
424  }
425  }
426 #else
427  if (aconf->ebpf_lb_file) {
428  SCLogError(SC_ERR_UNIMPLEMENTED, "eBPF support is not build-in");
429  }
430 #endif
431 
432  if (ConfGetChildValueWithDefault(if_root, if_default, "ebpf-filter-file", &ebpf_file) != 1) {
433  aconf->ebpf_filter_file = NULL;
434  } else {
435 #ifdef HAVE_PACKET_EBPF
436  SCLogConfig("af-packet will use '%s' as eBPF filter file",
437  ebpf_file);
438  aconf->ebpf_filter_file = ebpf_file;
439  aconf->ebpf_t_config.mode = AFP_MODE_EBPF_BYPASS;
440  aconf->ebpf_t_config.flags |= EBPF_SOCKET_FILTER;
441 #endif
442  ConfGetChildValueBoolWithDefault(if_root, if_default, "bypass", &conf_val);
443  if (conf_val) {
444 #ifdef HAVE_PACKET_EBPF
445  SCLogConfig("Using bypass kernel functionality for AF_PACKET (iface %s)",
446  aconf->iface);
447  aconf->flags |= AFP_BYPASS;
448  BypassedFlowManagerRegisterUpdateFunc(EBPFUpdateFlow, NULL);
449 #else
450  SCLogError(SC_ERR_UNIMPLEMENTED, "Bypass set but eBPF support is not built-in");
451 #endif
452  }
453  }
454 
455  /* One shot loading of the eBPF file */
456  if (aconf->ebpf_filter_file) {
457 #ifdef HAVE_PACKET_EBPF
458  int ret = EBPFLoadFile(aconf->iface, aconf->ebpf_filter_file, "filter",
459  &aconf->ebpf_filter_fd,
460  &aconf->ebpf_t_config);
461  if (ret != 0) {
463  "Error when loading eBPF filter file");
464  }
465 #else
466  SCLogError(SC_ERR_UNIMPLEMENTED, "eBPF support is not build-in");
467 #endif
468  }
469 
470  if (ConfGetChildValueWithDefault(if_root, if_default, "xdp-filter-file", &ebpf_file) != 1) {
471  aconf->xdp_filter_file = NULL;
472  } else {
473 #ifdef HAVE_PACKET_XDP
474  aconf->ebpf_t_config.mode = AFP_MODE_XDP_BYPASS;
475  aconf->ebpf_t_config.flags |= EBPF_XDP_CODE;
476  aconf->xdp_filter_file = ebpf_file;
477  ConfGetChildValueBoolWithDefault(if_root, if_default, "bypass", &conf_val);
478  if (conf_val) {
479  SCLogConfig("Using bypass kernel functionality for AF_PACKET (iface %s)",
480  aconf->iface);
481  aconf->flags |= AFP_XDPBYPASS;
482  /* if maps are pinned we need to read them at start */
483  if (aconf->ebpf_t_config.flags & EBPF_PINNED_MAPS) {
485  struct ebpf_timeout_config *ebt = SCCalloc(1, sizeof(struct ebpf_timeout_config));
486  if (ebt == NULL) {
487  SCLogError(SC_ERR_MEM_ALLOC, "Flow bypass alloc error");
488  } else {
489  memcpy(ebt, &(aconf->ebpf_t_config), sizeof(struct ebpf_timeout_config));
491  EBPFCheckBypassedFlowCreate,
492  (void *)ebt);
493  }
494  }
495  BypassedFlowManagerRegisterUpdateFunc(EBPFUpdateFlow, NULL);
496  }
497 #else
498  SCLogWarning(SC_ERR_UNIMPLEMENTED, "XDP filter set but XDP support is not built-in");
499 #endif
500 #ifdef HAVE_PACKET_XDP
501  const char *xdp_mode;
502  if (ConfGetChildValueWithDefault(if_root, if_default, "xdp-mode", &xdp_mode) != 1) {
503  aconf->xdp_mode = XDP_FLAGS_SKB_MODE;
504  } else {
505  if (!strcmp(xdp_mode, "soft")) {
506  aconf->xdp_mode = XDP_FLAGS_SKB_MODE;
507  } else if (!strcmp(xdp_mode, "driver")) {
508  aconf->xdp_mode = XDP_FLAGS_DRV_MODE;
509  } else if (!strcmp(xdp_mode, "hw")) {
510  aconf->xdp_mode = XDP_FLAGS_HW_MODE;
511  aconf->ebpf_t_config.flags |= EBPF_XDP_HW_MODE;
512  } else {
514  "Invalid xdp-mode value: '%s'", xdp_mode);
515  }
516  }
517 
518  boolval = true;
519  if (ConfGetChildValueBoolWithDefault(if_root, if_default, "use-percpu-hash", (int *)&boolval) == 1) {
520  if (boolval == false) {
521  SCLogConfig("Not using percpu hash on iface %s",
522  aconf->iface);
523  aconf->ebpf_t_config.cpus_count = 1;
524  }
525  }
526 #endif
527  }
528 
529  /* One shot loading of the eBPF file */
530  if (aconf->xdp_filter_file) {
531 #ifdef HAVE_PACKET_XDP
532  int ret = EBPFLoadFile(aconf->iface, aconf->xdp_filter_file, "xdp",
533  &aconf->xdp_filter_fd,
534  &aconf->ebpf_t_config);
535  switch (ret) {
536  case 1:
537  SCLogInfo("Loaded pinned maps from sysfs");
538  break;
539  case -1:
541  "Error when loading XDP filter file");
542  break;
543  case 0:
544  ret = EBPFSetupXDP(aconf->iface, aconf->xdp_filter_fd, aconf->xdp_mode);
545  if (ret != 0) {
547  "Error when setting up XDP");
548  } else {
549  /* Try to get the xdp-cpu-redirect key */
550  const char *cpuset;
551  if (ConfGetChildValueWithDefault(if_root, if_default,
552  "xdp-cpu-redirect", &cpuset) == 1) {
553  SCLogConfig("Setting up CPU map XDP");
554  ConfNode *node = ConfGetChildWithDefault(if_root, if_default, "xdp-cpu-redirect");
555  if (node == NULL) {
557  "Previously found node has disappeared");
558  } else {
559  EBPFBuildCPUSet(node, aconf->iface);
560  }
561  } else {
562  /* It will just set CPU count to 0 */
563  EBPFBuildCPUSet(NULL, aconf->iface);
564  }
565  }
566  /* we have a peer and we use bypass so we can set up XDP iface redirect */
567  if (aconf->out_iface) {
568  EBPFSetPeerIface(aconf->iface, aconf->out_iface);
569  }
570  }
571 #else
572  SCLogError(SC_ERR_UNIMPLEMENTED, "XDP support is not built-in");
573 #endif
574  }
575 
576  if ((ConfGetChildValueIntWithDefault(if_root, if_default, "buffer-size", &value)) == 1) {
577  aconf->buffer_size = value;
578  } else {
579  aconf->buffer_size = 0;
580  }
581  if ((ConfGetChildValueIntWithDefault(if_root, if_default, "ring-size", &value)) == 1) {
582  aconf->ring_size = value;
583  }
584 
585  if ((ConfGetChildValueIntWithDefault(if_root, if_default, "block-size", &value)) == 1) {
586  if (value % getpagesize()) {
587  SCLogError(SC_ERR_INVALID_VALUE, "Block-size must be a multiple of pagesize.");
588  } else {
589  aconf->block_size = value;
590  }
591  }
592 
593  if ((ConfGetChildValueIntWithDefault(if_root, if_default, "block-timeout", &value)) == 1) {
594  aconf->block_timeout = value;
595  } else {
596  aconf->block_timeout = 10;
597  }
598 
599  (void)ConfGetChildValueBoolWithDefault(if_root, if_default, "disable-promisc", (int *)&boolval);
600  if (boolval) {
601  SCLogConfig("Disabling promiscuous mode on iface %s",
602  aconf->iface);
603  aconf->promisc = 0;
604  }
605 
606  if (ConfGetChildValueWithDefault(if_root, if_default, "checksum-checks", &tmpctype) == 1) {
607  if (strcmp(tmpctype, "auto") == 0) {
609  } else if (ConfValIsTrue(tmpctype)) {
611  } else if (ConfValIsFalse(tmpctype)) {
613  } else if (strcmp(tmpctype, "kernel") == 0) {
615  } else {
616  SCLogError(SC_ERR_INVALID_ARGUMENT, "Invalid value for checksum-checks for %s", aconf->iface);
617  }
618  }
619 
620 finalize:
621 
622  /* if the number of threads is not 1, we need to first check if fanout
623  * functions on this system. */
624  if (aconf->threads != 1) {
625  if (AFPIsFanoutSupported(aconf->cluster_id) == 0) {
626  if (aconf->threads != 0) {
627  SCLogNotice("fanout not supported on this system, falling "
628  "back to 1 capture thread");
629  }
630  aconf->threads = 1;
631  }
632  }
633 
634  /* try to automagically set the proper number of threads */
635  if (aconf->threads == 0) {
636  /* for cluster_flow use core count */
637  if (cluster_type == PACKET_FANOUT_HASH) {
638  aconf->threads = (int)UtilCpuGetNumProcessorsOnline();
639  SCLogPerf("%u cores, so using %u threads", aconf->threads, aconf->threads);
640 
641  /* for cluster_qm use RSS queue count */
642  } else if (cluster_type == PACKET_FANOUT_QM) {
643  int rss_queues = GetIfaceRSSQueuesNum(iface);
644  if (rss_queues > 0) {
645  aconf->threads = rss_queues;
646  SCLogPerf("%d RSS queues, so using %u threads", rss_queues, aconf->threads);
647  }
648  }
649 
650  if (aconf->threads) {
651  SCLogPerf("Using %d AF_PACKET threads for interface %s",
652  aconf->threads, iface);
653  }
654  }
655  if (aconf->threads <= 0) {
656  aconf->threads = 1;
657  }
658  SC_ATOMIC_RESET(aconf->ref);
659  (void) SC_ATOMIC_ADD(aconf->ref, aconf->threads);
660 
661  if (aconf->ring_size != 0) {
662  if (aconf->ring_size * aconf->threads < max_pending_packets) {
663  aconf->ring_size = max_pending_packets / aconf->threads + 1;
664  SCLogWarning(SC_ERR_AFP_CREATE, "Inefficient setup: ring-size < max_pending_packets. "
665  "Resetting to decent value %d.", aconf->ring_size);
666  /* We want at least that max_pending_packets packets can be handled by the
667  * interface. This is generous if we have multiple interfaces listening. */
668  }
669  } else {
670  /* We want that max_pending_packets packets can be handled by suricata
671  * for this interface. To take burst into account we multiply the obtained
672  * size by 2. */
673  aconf->ring_size = max_pending_packets * 2 / aconf->threads;
674  }
675 
676  int ltype = AFPGetLinkType(iface);
677  switch (ltype) {
678  case LINKTYPE_ETHERNET:
679  /* af-packet can handle csum offloading */
680  if (LiveGetOffload() == 0) {
681  if (GetIfaceOffloading(iface, 0, 1) == 1) {
683  "Using AF_PACKET with offloading activated leads to capture problems");
684  }
685  } else {
687  }
688  break;
689  case -1:
690  default:
691  break;
692  }
693 
694  if (active_runmode && !strcmp("workers", active_runmode)) {
695  aconf->flags |= AFP_ZERO_COPY;
696  } else {
697  /* If we are using copy mode we need a lock */
698  aconf->flags |= AFP_SOCK_PROTECT;
699  }
700 
701  /* If we are in RING mode, then we can use ZERO copy
702  * by using the data release mechanism */
703  if (aconf->flags & AFP_RING_MODE) {
704  aconf->flags |= AFP_ZERO_COPY;
705  }
706 
707  if (aconf->flags & AFP_ZERO_COPY) {
708  SCLogConfig("%s: enabling zero copy mode by using data release call", iface);
709  }
710 
711  return aconf;
712 }
713 
714 static int AFPConfigGeThreadsCount(void *conf)
715 {
716  AFPIfaceConfig *afp = (AFPIfaceConfig *)conf;
717  return afp->threads;
718 }
719 
721 {
722  int nlive = LiveGetDeviceCount();
723  int ldev;
724  ConfNode *if_root;
725  ConfNode *if_default = NULL;
726  ConfNode *af_packet_node;
727  int has_ips = 0;
728  int has_ids = 0;
729 
730  /* Find initial node */
731  af_packet_node = ConfGetNode("af-packet");
732  if (af_packet_node == NULL) {
733  return 0;
734  }
735 
736  if_default = ConfNodeLookupKeyValue(af_packet_node, "interface", "default");
737 
738  for (ldev = 0; ldev < nlive; ldev++) {
739  const char *live_dev = LiveGetDeviceName(ldev);
740  if (live_dev == NULL) {
741  SCLogError(SC_ERR_INVALID_VALUE, "Problem with config file");
742  return 0;
743  }
744  const char *copymodestr = NULL;
745  if_root = ConfFindDeviceConfig(af_packet_node, live_dev);
746 
747  if (if_root == NULL) {
748  if (if_default == NULL) {
749  SCLogError(SC_ERR_INVALID_VALUE, "Problem with config file");
750  return 0;
751  }
752  if_root = if_default;
753  }
754 
755  if (ConfGetChildValueWithDefault(if_root, if_default, "copy-mode", &copymodestr) == 1) {
756  if (strcmp(copymodestr, "ips") == 0) {
757  has_ips = 1;
758  } else {
759  has_ids = 1;
760  }
761  } else {
762  has_ids = 1;
763  }
764  }
765 
766  if (has_ids && has_ips) {
767  SCLogInfo("AF_PACKET mode using IPS and IDS mode");
768  for (ldev = 0; ldev < nlive; ldev++) {
769  const char *live_dev = LiveGetDeviceName(ldev);
770  if (live_dev == NULL) {
771  SCLogError(SC_ERR_INVALID_VALUE, "Problem with config file");
772  return 0;
773  }
774  if_root = ConfNodeLookupKeyValue(af_packet_node, "interface", live_dev);
775  const char *copymodestr = NULL;
776 
777  if (if_root == NULL) {
778  if (if_default == NULL) {
779  SCLogError(SC_ERR_INVALID_VALUE, "Problem with config file");
780  return 0;
781  }
782  if_root = if_default;
783  }
784 
785  if (! ((ConfGetChildValueWithDefault(if_root, if_default, "copy-mode", &copymodestr) == 1) &&
786  (strcmp(copymodestr, "ips") == 0))) {
788  "AF_PACKET IPS mode used and interface '%s' is in IDS or TAP mode. "
789  "Sniffing '%s' but expect bad result as stream-inline is activated.",
790  live_dev, live_dev);
791  }
792  }
793  }
794 
795  return has_ips;
796 }
797 
798 #endif
799 
800 
802 {
803  SCEnter();
804 
805 /* We include only if AF_PACKET is enabled */
806 #ifdef HAVE_AF_PACKET
807  int ret;
808  const char *live_dev = NULL;
809 
811 
812  TimeModeSetLive();
813 
814  (void)ConfGet("af-packet.live-interface", &live_dev);
815 
816  SCLogDebug("live_dev %s", live_dev);
817 
818  if (AFPPeersListInit() != TM_ECODE_OK) {
819  FatalError(SC_ERR_FATAL, "Unable to init peers list.");
820  }
821 
822  ret = RunModeSetLiveCaptureAutoFp(ParseAFPConfig,
823  AFPConfigGeThreadsCount,
824  "ReceiveAFP",
825  "DecodeAFP", thread_name_autofp,
826  live_dev);
827  if (ret != 0) {
828  FatalError(SC_ERR_FATAL, "Unable to start runmode");
829  }
830 
831  /* In IPS mode each threads must have a peer */
832  if (AFPPeersListCheck() != TM_ECODE_OK) {
833  FatalError(SC_ERR_FATAL, "Some IPS capture threads did not peer.");
834  }
835 
836  SCLogDebug("RunModeIdsAFPAutoFp initialised");
837 #endif /* HAVE_AF_PACKET */
838 
839  SCReturnInt(0);
840 }
841 
842 /**
843  * \brief Single thread version of the AF_PACKET processing.
844  */
846 {
847  SCEnter();
848 #ifdef HAVE_AF_PACKET
849  int ret;
850  const char *live_dev = NULL;
851 
853  TimeModeSetLive();
854 
855  (void)ConfGet("af-packet.live-interface", &live_dev);
856 
857  if (AFPPeersListInit() != TM_ECODE_OK) {
858  FatalError(SC_ERR_FATAL, "Unable to init peers list.");
859  }
860 
861  ret = RunModeSetLiveCaptureSingle(ParseAFPConfig,
862  AFPConfigGeThreadsCount,
863  "ReceiveAFP",
864  "DecodeAFP", thread_name_single,
865  live_dev);
866  if (ret != 0) {
867  FatalError(SC_ERR_FATAL, "Unable to start runmode");
868  }
869 
870  /* In IPS mode each threads must have a peer */
871  if (AFPPeersListCheck() != TM_ECODE_OK) {
872  FatalError(SC_ERR_FATAL, "Some IPS capture threads did not peer.");
873  }
874 
875  SCLogDebug("RunModeIdsAFPSingle initialised");
876 
877 #endif /* HAVE_AF_PACKET */
878  SCReturnInt(0);
879 }
880 
881 /**
882  * \brief Workers version of the AF_PACKET processing.
883  *
884  * Start N threads with each thread doing all the work.
885  *
886  */
888 {
889  SCEnter();
890 #ifdef HAVE_AF_PACKET
891  int ret;
892  const char *live_dev = NULL;
893 
895  TimeModeSetLive();
896 
897  (void)ConfGet("af-packet.live-interface", &live_dev);
898 
899  if (AFPPeersListInit() != TM_ECODE_OK) {
900  FatalError(SC_ERR_FATAL, "Unable to init peers list.");
901  }
902 
903  ret = RunModeSetLiveCaptureWorkers(ParseAFPConfig,
904  AFPConfigGeThreadsCount,
905  "ReceiveAFP",
906  "DecodeAFP", thread_name_workers,
907  live_dev);
908  if (ret != 0) {
909  FatalError(SC_ERR_FATAL, "Unable to start runmode");
910  }
911 
912  /* In IPS mode each threads must have a peer */
913  if (AFPPeersListCheck() != TM_ECODE_OK) {
914  FatalError(SC_ERR_FATAL, "Some IPS capture threads did not peer.");
915  }
916 
917  SCLogDebug("RunModeIdsAFPWorkers initialised");
918 
919 #endif /* HAVE_AF_PACKET */
920  SCReturnInt(0);
921 }
922 
923 /**
924  * @}
925  */
thread_name_workers
const char * thread_name_workers
Definition: runmodes.c:66
AFPIfaceConfig_::promisc
int promisc
Definition: source-af-packet.h:98
util-byte.h
tm-threads.h
AFPIfaceConfig_::checksum_mode
ChecksumValidationMode checksum_mode
Definition: source-af-packet.h:102
PACKET_FANOUT_FLAG_DEFRAG
#define PACKET_FANOUT_FLAG_DEFRAG
Definition: source-af-packet.h:40
RunModeIdsAFPWorkers
int RunModeIdsAFPWorkers(void)
Workers version of the AF_PACKET processing.
Definition: runmode-af-packet.c:887
flow-bypass.h
AFPIfaceConfig_::xdp_mode
uint8_t xdp_mode
Definition: source-af-packet.h:110
StringParseUint16
int StringParseUint16(uint16_t *res, int base, uint16_t len, const char *str)
Definition: util-byte.c:336
AFP_BYPASS
#define AFP_BYPASS
Definition: source-af-packet.h:65
RunModeSetLiveCaptureWorkers
int RunModeSetLiveCaptureWorkers(ConfigIfaceParserFunc ConfigParser, ConfigIfaceThreadsCountFunc ModThreadsCount, const char *recv_mod_name, const char *decode_mod_name, const char *thread_name, const char *live_dev)
Definition: util-runmodes.c:331
SC_ERR_INVALID_VALUE
@ SC_ERR_INVALID_VALUE
Definition: util-error.h:160
AFPPeersListCheck
TmEcode AFPPeersListCheck()
Check that all AFPPeer got a peer.
Definition: source-af-packet.c:409
alert-debuglog.h
GetIfaceRSSQueuesNum
int GetIfaceRSSQueuesNum(const char *pcap_dev)
Definition: util-ioctl.c:737
SC_ATOMIC_INIT
#define SC_ATOMIC_INIT(name)
wrapper for initializing an atomic variable.
Definition: util-atomic.h:315
AFP_COPY_MODE_NONE
#define AFP_COPY_MODE_NONE
Definition: source-af-packet.h:68
RunModeIdsAFPSingle
int RunModeIdsAFPSingle(void)
Single thread version of the AF_PACKET processing.
Definition: runmode-af-packet.c:845
runmode-af-packet.h
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
SC_ERR_INVALID_CLUSTER_TYPE
@ SC_ERR_INVALID_CLUSTER_TYPE
Definition: util-error.h:66
RunModeIdsAFPRegister
void RunModeIdsAFPRegister(void)
Definition: runmode-af-packet.c:67
ConfGetChildValueBoolWithDefault
int ConfGetChildValueBoolWithDefault(const ConfNode *base, const ConfNode *dflt, const char *name, int *val)
Definition: conf.c:542
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:298
LiveGetOffload
int LiveGetOffload(void)
Definition: util-device.c:79
AFPIfaceConfig_::ebpf_filter_fd
int ebpf_filter_fd
Definition: source-af-packet.h:107
ConfGetNode
ConfNode * ConfGetNode(const char *name)
Get a ConfNode by name.
Definition: conf.c:175
PACKET_FANOUT_RND
#define PACKET_FANOUT_RND
Definition: source-af-packet.h:36
UtilCpuGetNumProcessorsConfigured
uint16_t UtilCpuGetNumProcessorsConfigured(void)
Get the number of cpus configured in the system.
Definition: util-cpu.c:59
AFP_SOCK_PROTECT
#define AFP_SOCK_PROTECT
Definition: source-af-packet.h:60
PACKET_FANOUT_HASH
#define PACKET_FANOUT_HASH
Definition: source-af-packet.h:32
SC_ATOMIC_ADD
#define SC_ATOMIC_ADD(name, val)
add a value to our atomic variable
Definition: util-atomic.h:333
RunModeAFPGetDefaultMode
const char * RunModeAFPGetDefaultMode(void)
Definition: runmode-af-packet.c:62
RunModeInitialize
void RunModeInitialize(void)
Definition: runmodes.c:921
PACKET_FANOUT_QM
#define PACKET_FANOUT_QM
Definition: source-af-packet.h:37
AFPIfaceConfig_::threads
int threads
Definition: source-af-packet.h:85
util-runmodes.h
StringParseInt32
int StringParseInt32(int32_t *res, int base, uint16_t len, const char *str)
Definition: util-byte.c:613
AFPIfaceConfig_::ring_size
int ring_size
Definition: source-af-packet.h:89
thread_name_autofp
const char * thread_name_autofp
Definition: runmodes.c:64
AFPIfaceConfig_::block_timeout
int block_timeout
Definition: source-af-packet.h:93
PACKET_FANOUT_ROLLOVER
#define PACKET_FANOUT_ROLLOVER
Definition: source-af-packet.h:35
ConfNodeLookupKeyValue
ConfNode * ConfNodeLookupKeyValue(const ConfNode *base, const char *key, const char *value)
Lookup for a key value under a specific node.
Definition: conf.c:859
CHECKSUM_VALIDATION_DISABLE
@ CHECKSUM_VALIDATION_DISABLE
Definition: decode.h:43
AFPIfaceConfig_::out_iface
const char * out_iface
Definition: source-af-packet.h:111
CHECKSUM_VALIDATION_KERNEL
@ CHECKSUM_VALIDATION_KERNEL
Definition: decode.h:47
AFP_XDPBYPASS
#define AFP_XDPBYPASS
Definition: source-af-packet.h:66
RunmodeGetActive
char * RunmodeGetActive(void)
Definition: runmodes.c:192
AFPIfaceConfig_::flags
unsigned int flags
Definition: source-af-packet.h:100
AFPIfaceConfig_::copy_mode
int copy_mode
Definition: source-af-packet.h:101
AFPIfaceConfig_::xdp_filter_fd
int xdp_filter_fd
Definition: source-af-packet.h:109
ConfGetChildValueIntWithDefault
int ConfGetChildValueIntWithDefault(const ConfNode *base, const ConfNode *dflt, const char *name, intmax_t *val)
Definition: conf.c:494
SC_ERR_RUNMODE
@ SC_ERR_RUNMODE
Definition: util-error.h:219
thread_name_single
const char * thread_name_single
Definition: runmodes.c:65
ConfGetChildWithDefault
ConfNode * ConfGetChildWithDefault(const ConfNode *base, const ConfNode *dflt, const char *name)
Definition: conf.c:401
AFPGetLinkType
int AFPGetLinkType(const char *ifname)
Definition: source-af-packet.c:1678
ConfValIsTrue
int ConfValIsTrue(const char *val)
Check if a value is true.
Definition: conf.c:565
TM_ECODE_OK
@ TM_ECODE_OK
Definition: tm-threads-common.h:80
AFP_BLOCK_SIZE_DEFAULT_ORDER
#define AFP_BLOCK_SIZE_DEFAULT_ORDER
Definition: source-af-packet.h:79
AFPIfaceConfig_::cluster_type
int cluster_type
Definition: source-af-packet.h:96
AFPIfaceConfig_::cluster_id
uint16_t cluster_id
Definition: source-af-packet.h:95
strlcpy
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: util-strlcpyu.c:43
RunModeSetLiveCaptureAutoFp
int RunModeSetLiveCaptureAutoFp(ConfigIfaceParserFunc ConfigParser, ConfigIfaceThreadsCountFunc ModThreadsCount, const char *recv_mod_name, const char *decode_mod_name, const char *thread_name, const char *live_dev)
Definition: util-runmodes.c:88
AFPIfaceConfig_::block_size
int block_size
Definition: source-af-packet.h:91
CHECKSUM_VALIDATION_ENABLE
@ CHECKSUM_VALIDATION_ENABLE
Definition: decode.h:44
ConfGet
int ConfGet(const char *name, const char **vptr)
Retrieve the value of a configuration node.
Definition: conf.c:330
CHECKSUM_VALIDATION_AUTO
@ CHECKSUM_VALIDATION_AUTO
Definition: decode.h:45
util-device.h
util-debug.h
AFPIfaceConfig_::ebpf_lb_fd
int ebpf_lb_fd
Definition: source-af-packet.h:105
AFP_MMAP_LOCKED
#define AFP_MMAP_LOCKED
Definition: source-af-packet.h:64
util-cpu.h
AFPIfaceConfig_::ebpf_filter_file
const char * ebpf_filter_file
Definition: source-af-packet.h:106
PACKET_FANOUT_LB
#define PACKET_FANOUT_LB
Definition: source-af-packet.h:33
RunModeEnablesBypassManager
void RunModeEnablesBypassManager(void)
Definition: runmodes.c:412
LiveGetDevice
LiveDevice * LiveGetDevice(const char *name)
Get a pointer to the device at idx.
Definition: util-device.c:278
ConfFindDeviceConfig
ConfNode * ConfFindDeviceConfig(ConfNode *node, const char *iface)
Find the configuration node for a specific device.
Definition: util-conf.c:128
SCEnter
#define SCEnter(...)
Definition: util-debug.h:300
detect-engine-mpm.h
util-ebpf.h
util-affinity.h
PACKET_FANOUT_CPU
#define PACKET_FANOUT_CPU
Definition: source-af-packet.h:34
ConfGetChildValueWithDefault
int ConfGetChildValueWithDefault(const ConfNode *base, const ConfNode *dflt, const char *name, const char **vptr)
Definition: conf.c:415
util-time.h
AFPIfaceConfig_::DerefFunc
void(* DerefFunc)(void *)
Definition: source-af-packet.h:116
SC_ERR_INVALID_ARGUMENT
@ SC_ERR_INVALID_ARGUMENT
Definition: util-error.h:43
AFP_COPY_MODE_TAP
#define AFP_COPY_MODE_TAP
Definition: source-af-packet.h:69
SC_ATOMIC_SUB
#define SC_ATOMIC_SUB(name, val)
sub a value from our atomic variable
Definition: util-atomic.h:342
AFPRunModeIsIPS
int AFPRunModeIsIPS()
Definition: runmode-af-packet.c:720
conf.h
GetIfaceOffloading
int GetIfaceOffloading(const char *dev, int csum, int other)
output offloading status of the link
Definition: util-ioctl.c:694
DisableIfaceOffloading
int DisableIfaceOffloading(LiveDevice *dev, int csum, int other)
Definition: util-ioctl.c:707
runmodes.h
SCLogInfo
#define SCLogInfo(...)
Macro used to log INFORMATIONAL messages.
Definition: util-debug.h:217
alert-prelude.h
TimeModeSetLive
void TimeModeSetLive(void)
Definition: util-time.c:97
alert-fastlog.h
AFPIsFanoutSupported
int AFPIsFanoutSupported(int cluster_id)
test if we can use FANOUT. Older kernels like those in CentOS6 have HAVE_PACKET_FANOUT defined but fa...
Definition: source-af-packet.c:1980
suricata-common.h
RunModeRegisterNewRunMode
void RunModeRegisterNewRunMode(enum RunModes runmode, const char *name, const char *description, int(*RunModeFunc)(void))
Registers a new runmode.
Definition: runmodes.c:433
LiveGetDeviceName
const char * LiveGetDeviceName(int number)
Get a pointer to the device name at idx.
Definition: util-device.c:176
SCLogPerf
#define SCLogPerf(...)
Definition: util-debug.h:224
SCLogError
#define SCLogError(err_code,...)
Macro used to log ERROR messages.
Definition: util-debug.h:257
AFP_RING_MODE
#define AFP_RING_MODE
Definition: source-af-packet.h:58
AFPIfaceConfig_::xdp_filter_file
const char * xdp_filter_file
Definition: source-af-packet.h:108
AFP_TPACKET_V3
#define AFP_TPACKET_V3
Definition: source-af-packet.h:62
FatalError
#define FatalError(x,...)
Definition: util-debug.h:532
SC_ERR_AFP_CREATE
@ SC_ERR_AFP_CREATE
Definition: util-error.h:222
log-httplog.h
SC_ERR_UNIMPLEMENTED
@ SC_ERR_UNIMPLEMENTED
Definition: util-error.h:118
RunModeIdsAFPAutoFp
int RunModeIdsAFPAutoFp(void)
Definition: runmode-af-packet.c:801
SC_ATOMIC_RESET
#define SC_ATOMIC_RESET(name)
wrapper for reinitializing an atomic variable.
Definition: util-atomic.h:324
BypassedFlowManagerRegisterUpdateFunc
int BypassedFlowManagerRegisterUpdateFunc(BypassedUpdateFunc UpdateFunc, void *data)
source-af-packet.h
SCLogConfig
struct SCLogConfig_ SCLogConfig
Holds the config state used by the logging api.
SCLogWarning
#define SCLogWarning(err_code,...)
Macro used to log WARNING messages.
Definition: util-debug.h:244
SCFree
#define SCFree(p)
Definition: util-mem.h:61
AFP_COPY_MODE_IPS
#define AFP_COPY_MODE_IPS
Definition: source-af-packet.h:70
max_pending_packets
int max_pending_packets
Definition: suricata.c:212
ConfNode_
Definition: conf.h:32
SC_ERR_FATAL
@ SC_ERR_FATAL
Definition: util-error.h:203
AFPIfaceConfig_::buffer_size
int buffer_size
Definition: source-af-packet.h:87
util-ioctl.h
ConfValIsFalse
int ConfValIsFalse(const char *val)
Check if a value is false.
Definition: conf.c:590
RunModeSetLiveCaptureSingle
int RunModeSetLiveCaptureSingle(ConfigIfaceParserFunc ConfigParser, ConfigIfaceThreadsCountFunc ModThreadsCount, const char *recv_mod_name, const char *decode_mod_name, const char *thread_name, const char *live_dev)
Definition: util-runmodes.c:365
AFP_ZERO_COPY
#define AFP_ZERO_COPY
Definition: source-af-packet.h:59
AFPIfaceConfig_::iface
char iface[AFP_IFACE_NAME_LENGTH]
Definition: source-af-packet.h:83
SC_ERR_MEM_ALLOC
@ SC_ERR_MEM_ALLOC
Definition: util-error.h:31
AFPIfaceConfig_
Definition: source-af-packet.h:82
AFPIfaceConfig_::bpf_filter
const char * bpf_filter
Definition: source-af-packet.h:103
LiveGetDeviceCount
int LiveGetDeviceCount(void)
Get the number of registered devices.
Definition: util-device.c:156
UtilCpuGetNumProcessorsOnline
uint16_t UtilCpuGetNumProcessorsOnline(void)
Get the number of cpus online in the system.
Definition: util-cpu.c:106
AFPIfaceConfig_::ebpf_lb_file
const char * ebpf_lb_file
Definition: source-af-packet.h:104
SCLogNotice
#define SCLogNotice(...)
Macro used to log NOTICE messages.
Definition: util-debug.h:232
BypassedFlowManagerRegisterCheckFunc
int BypassedFlowManagerRegisterCheckFunc(BypassedCheckFunc CheckFunc, BypassedCheckFuncInit CheckFuncInit, void *data)
SCCalloc
#define SCCalloc(nm, sz)
Definition: util-mem.h:53
RUNMODE_AFP_DEV
@ RUNMODE_AFP_DEV
Definition: runmodes.h:37
SCReturnInt
#define SCReturnInt(x)
Definition: util-debug.h:304
PACKET_FANOUT_FLAG_ROLLOVER
#define PACKET_FANOUT_FLAG_ROLLOVER
Definition: source-af-packet.h:39
AFPPeersListInit
TmEcode AFPPeersListInit()
Init the global list of AFPPeer.
Definition: source-af-packet.c:392
output.h
LINKTYPE_ETHERNET
#define LINKTYPE_ETHERNET
Definition: decode.h:1088
AFP_EMERGENCY_MODE
#define AFP_EMERGENCY_MODE
Definition: source-af-packet.h:61
SC_WARN_UNCOMMON
@ SC_WARN_UNCOMMON
Definition: util-error.h:262