2 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 #include <sys/types.h>
25 #include <arpa/inet.h>
28 #include "helper-nfacct-rule.h"
29 #include "helper-iptables.h"
31 #include "configure_stub.h"
33 #define IPTABLES "/usr/sbin/iptables"
34 #define IP6TABLES "/usr/sbin/ip6tables"
35 #define IPTABLES_CHECK "-C"
40 #define NFACCT_NAME_MOD " -m nfacct --nfacct-name %s"
41 #define REJECT_RULE "REJECT"
42 #define ACCEPT_RULE "ACCEPT"
43 #define OUT_RULE "OUTPUT"
44 #define IN_RULE "INPUT"
45 #define FORWARD_RULE "FORWARD"
47 /* TODO idea to use the same rule both for BLOCK (REJECT) and WARNING (ACCEPT) */
48 #define RULE_APP_OUT "%s -w %s OUTPUT -o %s -m cgroup --cgroup %u %s %s"
49 #define RULE_APP_IN "%s -w %s INPUT -i %s -m cgroup --cgroup %u %s %s"
51 /* iptables -w [I/A/D] [OUTPUT/FORWARD/INPUT] -o/-i iface -m nfacct --nfacct-name name -j ACCEPT/REJECT */
53 #define RULE_IFACE_OUT "%s -w %s %s -o %s %s %s"
54 #define RULE_IFACE_IN "%s -w %s %s -i %s %s %s"
56 #define NFNL_SUBSYS_ACCT 7
57 #define BUF_SIZE_FOR_ERR 100
59 static void prepare_netlink_msg(struct genl *req, int type, int flag)
62 memset(req, 0, sizeof(struct genl));
63 req->n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
64 req->n.nlmsg_type = (NFNL_SUBSYS_ACCT << 8) | type;
65 req->n.nlmsg_flags = NLM_F_REQUEST | flag;
66 req->n.nlmsg_seq = seq;
69 static void add_value_attr(struct genl *req, const void *data, int len,
74 struct nlattr *na = (struct nlattr *)((char *)req +
75 NLMSG_ALIGN(req->n.nlmsg_len));
78 payload = len + NLA_HDRLEN;
79 na->nla_len = payload;
80 memcpy(NLA_DATA(na), data, len);
81 req->n.nlmsg_len += NLMSG_ALIGN(payload);
85 * following 2 function should be used in combination.
86 * start_nest_attr returns nlattr structure, which should be completed by
88 * before these invocations any number of netlink arguments could be inserted
90 static struct nlattr *start_nest_attr(struct genl *req, uint16_t type)
92 struct nlattr *start = (struct nlattr *)((char *)req +
93 NLMSG_ALIGN(req->n.nlmsg_len));
95 start->nla_type = NLA_F_NESTED | type;
96 req->n.nlmsg_len += NLMSG_ALIGN(sizeof(struct nlattr));
100 static void end_nest_attr(struct genl *req, struct nlattr *start)
102 start->nla_len = (__u16)((char *)req +
103 NLMSG_ALIGN(req->n.nlmsg_len) - (char *)start);
106 static void add_string_attr(struct genl *req, const char *str, int type)
108 add_value_attr(req, str, strlen(str) + 1, type);
111 static void add_uint64_attr(struct genl *req, const uint64_t v, int type)
113 add_value_attr(req, &v, sizeof(v), type);
116 /* macros or templare, due uint64 and uint32 is the same functions */
117 static void add_uint32_attr(struct genl *req, const uint32_t v, int type)
119 add_value_attr(req, &v, sizeof(v), type);
122 static stc_error_e send_nfacct_request(int sock, struct genl *req)
124 struct sockaddr_nl nladdr = {.nl_family = AF_NETLINK};
125 int ret = sendto(sock, (char *)(&req->n), req->n.nlmsg_len, 0,
126 (struct sockaddr *)&nladdr, sizeof(nladdr));
127 ret_value_msg_if(ret < 0, STC_ERROR_FAIL,
128 "Failed to send nfacct request, error [%d]", ret);
130 return STC_ERROR_NONE;
133 static stc_error_e nfacct_send_new(nfacct_rule_s *counter)
135 int ret = STC_ERROR_NONE;
136 struct genl *req = MALLOC0(struct genl, 1);
138 STC_LOGE("Failed allocate memory to genl request message"); //LCOV_EXCL_LINE
139 return STC_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE
142 prepare_netlink_msg(req, NFNL_MSG_ACCT_NEW, NLM_F_CREATE | NLM_F_ACK);
143 add_string_attr(req, counter->name, NFACCT_NAME);
146 add_uint64_attr(req, 0, NFACCT_PKTS);
147 add_uint64_attr(req, 0, NFACCT_BYTES);
149 if (counter->quota) {
150 STC_LOGD("quota bytes %"PRId64, counter->quota);
152 add_uint32_attr(req, htobe32(NFACCT_F_QUOTA_BYTES),
154 add_uint64_attr(req, htobe64(counter->quota), NFACCT_QUOTA);
158 ret = send_nfacct_request(counter->carg->sock, req);
163 stc_error_e nfacct_send_del(nfacct_rule_s *counter)
165 int ret = STC_ERROR_NONE;
166 struct genl *req = MALLOC0(struct genl, 1);
168 STC_LOGE("Failed allocate memory to genl request message"); //LCOV_EXCL_LINE
169 return STC_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE
172 prepare_netlink_msg(req, NFNL_MSG_ACCT_DEL, NLM_F_ACK);
173 add_string_attr(req, counter->name, NFACCT_NAME);
175 ret = send_nfacct_request(counter->carg->sock, req);
179 #define NFACCT_F_QUOTAS (NFACCT_F_QUOTA_BYTES | NFACCT_F_QUOTA_PKTS)
181 static stc_error_e internal_nfacct_send_get(struct counter_arg *carg,
182 enum nfnl_acct_msg_types get_type,
184 int mask, int filter)
186 int ret = STC_ERROR_NONE;
188 int flag = !name ? NLM_F_DUMP : 0;
189 struct genl *req = MALLOC0(struct genl, 1);
191 STC_LOGE("Failed allocate memory to genl request message"); //LCOV_EXCL_LINE
192 return STC_ERROR_OUT_OF_MEMORY; //LCOV_EXCL_LINE
195 prepare_netlink_msg(req, get_type, flag);
196 /* due we don't get counter with quota any where else,
197 * here we will request just counters by default */
199 add_string_attr(req, name, NFACCT_NAME);
201 na = start_nest_attr(req, NFACCT_FILTER);
202 add_uint32_attr(req, htonl(mask), NFACCT_FILTER_ATTR_MASK);
203 add_uint32_attr(req, htonl(filter), NFACCT_FILTER_ATTR_VALUE);
204 end_nest_attr(req, na);
206 ret = send_nfacct_request(carg->sock, req);
211 stc_error_e nfacct_send_get_counters(struct counter_arg *carg, const char *name)
213 /* get and reset countes value */
214 return internal_nfacct_send_get(carg, NFNL_MSG_ACCT_GET_CTRZERO, name,
218 stc_error_e nfacct_send_get_quotas(struct counter_arg *carg, const char *name)
220 /* just get counters */
221 return internal_nfacct_send_get(carg, NFNL_MSG_ACCT_GET, name,
222 NFACCT_F_QUOTA_BYTES,
223 NFACCT_F_QUOTA_BYTES);
226 stc_error_e nfacct_send_get_all(struct counter_arg *carg)
228 /* get and reset everything, used when quiting */
229 return internal_nfacct_send_get(carg, NFNL_MSG_ACCT_GET_CTRZERO, NULL,
233 stc_error_e nfacct_send_get(nfacct_rule_s *rule)
235 if (rule->intend == NFACCT_BLOCK || rule->intend == NFACCT_WARN)
236 return nfacct_send_get_quotas(rule->carg, rule->name);
237 else if (rule->intend == NFACCT_COUNTER)
238 return nfacct_send_get_counters(rule->carg, rule->name);
240 return STC_ERROR_INVALID_PARAMETER;
243 static nfacct_rule_direction convert_to_iotype(int type)
245 return (type < NFACCT_COUNTER_LAST_ELEM &&
246 type > NFACCT_COUNTER_UNKNOWN) ? type : NFACCT_COUNTER_UNKNOWN;
249 static stc_iface_type_e convert_to_iftype(int type)
251 return (type < STC_IFACE_LAST_ELEM &&
252 type > STC_IFACE_UNKNOWN) ? type : STC_IFACE_UNKNOWN;
255 bool recreate_counter_by_name(char *cnt_name, nfacct_rule_s *cnt)
261 char *save_ptr = NULL;
262 char name[NFACCT_NAME_MAX] = {0}; /* parse buffer to avoid cnt_name modification */
264 strncpy(name, cnt_name, sizeof(name) - 1);
268 cnt->intend = NFACCT_COUNTER;
271 cnt->intend = NFACCT_WARN;
274 cnt->intend = NFACCT_BLOCK;
277 cnt->intend = NFACCT_ALLOW;
280 cnt->intend = NFACCT_TETH_COUNTER; //LCOV_EXCL_LINE
281 break; //LCOV_EXCL_LINE
286 STRING_SAVE_COPY(cnt->name, cnt_name);
289 if (cnt->intend == NFACCT_TETH_COUNTER) {
290 char ifname_buf[MAX_IFACE_LENGTH];
292 stc_iface_type_e iface;
293 /* tbnep+:seth_w0; means comes by bt go away by mobile interface,
294 * it's outgoing traffic, due all tethering is mobile databased */
295 iftype_part = strchr(name, ':');
296 ret_value_msg_if(iftype_part == NULL,
297 false, "Invalid format of the tethering counter %s", name);
298 ifname_len = iftype_part - name - 1;
299 strncpy(ifname_buf, name + 1, ifname_len); /* skip first t */
300 ifname_buf[ifname_len] = '\0';
301 iface = get_iftype_by_name(ifname_buf);
302 /* check first part is it datacall */
303 if (iface == STC_IFACE_DATACALL) {
304 strncpy(cnt->ifname, ifname_buf, MAX_IFACE_LENGTH - 1);
305 cnt->iotype = NFACCT_COUNTER_IN;
307 /* +1, due : symbol and till the end of cnt_name */
308 strncpy(ifname_buf, iftype_part + 1, MAX_IFACE_LENGTH - 1);
309 iface = get_iftype_by_name(ifname_buf);
310 if (iface == STC_IFACE_DATACALL) {
311 cnt->iotype = NFACCT_COUNTER_OUT;
312 strncpy(cnt->ifname, ifname_buf, MAX_IFACE_LENGTH - 1);
316 if (cnt->iotype == NFACCT_COUNTER_UNKNOWN) {
317 STC_LOGE("can't determine tethering direction %s", name);
320 cnt->iftype = STC_IFACE_DATACALL;
321 cnt->classid = STC_TETHERING_APP_CLASSID;
326 io_part = strtok_r(name, "_", &save_ptr);
328 cnt->iotype = convert_to_iotype(atoi(io_part + 1));
332 iftype_part = strtok_r(NULL, "_", &save_ptr);
333 if (iftype_part != NULL)
334 cnt->iftype = convert_to_iftype(atoi(iftype_part));
338 classid_part = strtok_r(NULL, "_", &save_ptr);
339 if (classid_part != NULL)
340 cnt->classid = atoi(classid_part);
342 cnt->classid = STC_ALL_APP_CLASSID;
343 return cnt->intend == NFACCT_BLOCK ? true : false;
346 ifname_part = strtok_r(NULL, "\0", &save_ptr);
347 if (ifname_part != NULL)
348 STRING_SAVE_COPY(cnt->ifname, ifname_part);
355 static void _process_answer(struct netlink_serialization_params *params)
358 struct rtattr *attr_list[__NFACCT_MAX] = {0};
359 struct counter_arg *carg = params->carg;
360 struct genl *ans = params->ans;;
361 struct nlmsghdr *nlhdr = &ans->n;
362 int len = GENLMSG_PAYLOAD(nlhdr);
363 int ans_len = carg->ans_len;
368 /* parse reply message */
369 na = (struct rtattr *)GENLMSG_DATA(ans);
371 while (NLMSG_OK(nlhdr, ans_len)) {
372 fill_attribute_list(attr_list, NFACCT_MAX,
374 if (!attr_list[NFACCT_NAME] ||
375 !attr_list[NFACCT_BYTES])
377 params->eval_attr(attr_list, carg);
380 nlhdr = NLMSG_NEXT(nlhdr, ans_len);
383 na = (struct rtattr *)GENLMSG_DATA(nlhdr);
386 if (params->post_eval_attr)
387 params->post_eval_attr(carg);
390 netlink_serialization_command *
391 netlink_create_command(struct netlink_serialization_params *params)
393 static netlink_serialization_command command = {0,};
394 command.deserialize_answer = _process_answer;
395 command.params = *params;
399 static char *get_iptables_cmd(const nfacct_rule_action action)
401 if (action == NFACCT_ACTION_APPEND)
403 else if (action == NFACCT_ACTION_DELETE)
405 else if (action == NFACCT_ACTION_INSERT)
411 static char *get_iptables_chain(const nfacct_rule_direction iotype)
413 if (iotype == NFACCT_COUNTER_IN)
415 else if (iotype == NFACCT_COUNTER_OUT)
416 return STC_OUT_CHAIN;
417 else if (iotype == NFACCT_COUNTER_FORWARD) //LCOV_EXCL_LINE
418 return STC_FRWD_CHAIN; //LCOV_EXCL_LINE
423 static char *get_iptables_jump(const nfacct_rule_jump jump)
425 if (jump == NFACCT_JUMP_ACCEPT)
427 else if (jump == NFACCT_JUMP_REJECT)
434 static char *choose_iftype_name(nfacct_rule_s *rule)
436 return strlen(rule->ifname) != 0 ? rule->ifname :
437 get_iftype_name(rule->iftype);
441 static stc_error_e exec_iptables_cmd(nfacct_rule_s *rule)
443 stc_error_e ret = STC_ERROR_NONE;
444 iptables_ip_type_e iptype;
445 iptables_rule_s iptables_rule;
446 memset(&iptables_rule, 0, sizeof(iptables_rule_s));
448 iptables_rule.nfacct_name = g_strdup(rule->name);
449 iptables_rule.ifname = g_strdup(rule->ifname);
450 iptables_rule.target = g_strdup(get_iptables_jump(rule->jump));
452 /* In case of tehering use chain 'STC_TETHER' */
453 if (rule->intend == NFACCT_TETH_COUNTER)
454 iptables_rule.chain = g_strdup(STC_TETHER_CHAIN);
456 iptables_rule.chain = g_strdup(get_iptables_chain(rule->iotype));
458 iptables_rule.classid = rule->classid;
459 iptables_rule.direction = (rule->iotype & NFACCT_COUNTER_IN) ?
460 IPTABLES_DIRECTION_IN : IPTABLES_DIRECTION_OUT;
461 iptype = (iptables_ip_type_e)rule->iptype;
463 /* specify the ip range type for source and destination */
464 iptables_rule.s_iprange_type = rule->src_iprange_type;
465 iptables_rule.d_iprange_type = rule->dst_iprange_type;
467 /* specify source and destination ip address if any */
469 inet_aton(rule->src_ip1, &iptables_rule.s_ip1);
471 inet_aton(rule->src_ip2, &iptables_rule.s_ip2);
473 inet_aton(rule->dst_ip1, &iptables_rule.d_ip1);
475 inet_aton(rule->dst_ip2, &iptables_rule.d_ip2);
477 if (rule->action == NFACCT_ACTION_DELETE) {
478 /* delete interface rule */
479 ret = iptables_remove(&iptables_rule, iptype);
481 /* add interface rule */
482 ret = iptables_add(&iptables_rule, iptype);
485 g_free(iptables_rule.nfacct_name);
486 g_free(iptables_rule.ifname);
487 g_free(iptables_rule.target);
488 g_free(iptables_rule.chain);
493 static stc_error_e produce_app_rule(nfacct_rule_s *rule)
496 return STC_ERROR_INVALID_PARAMETER;
498 char *set_cmd = get_iptables_cmd(rule->action);
499 char *jump_cmd = get_iptables_jump(rule->jump);
500 char nfacct_buf[sizeof(NFACCT_NAME_MOD) +
501 3*MAX_DEC_SIZE(int) + 4 + 1];
502 stc_error_e ret = STC_ERROR_NONE;
503 uint32_t classid = rule->classid;
506 if (rule->iotype & NFACCT_COUNTER_IN) {
507 rule->quota = rule->rcv_limit;
508 rule->iotype = NFACCT_COUNTER_IN;
509 generate_counter_name(rule);
511 /* to support quated counter we need nfacct,
512 * don't use it in case of just block without a limit
513 * iow, send_limit = 0 and rcv_limit 0 */
514 if (rule->action != NFACCT_ACTION_DELETE) {
515 ret = nfacct_send_del(rule);
516 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
517 "can't del quota counter");
519 ret = nfacct_send_new(rule);
520 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
521 "can't set nfacct counter");
525 /* we have a counter, let's key in a rule, drop in case of
526 * send_limit/rcv_limit */
527 ret = snprintf(nfacct_buf, sizeof(nfacct_buf), NFACCT_NAME_MOD,
529 ret_value_msg_if(ret > sizeof(nfacct_buf) || ret < 0,
530 STC_ERROR_FAIL, "Not enought buffer");
532 /* cgroup extention on FORWARD chain are not allowed
533 * remove classid info in case of tethering rules */
534 if (rule->intend == NFACCT_TETH_COUNTER) {
535 classid = rule->classid;
539 ret = exec_iptables_cmd(rule);
541 /* restore the classid info in case of tethering rule */
542 if (rule->intend == NFACCT_TETH_COUNTER)
543 rule->classid = classid;
545 ret_value_msg_if(ret != STC_ERROR_NONE, STC_ERROR_FAIL,
546 "Can't set conditional block for ingress"
547 " traffic, for classid %u, cmd %s, j %s",
548 rule->classid, set_cmd, jump_cmd);
550 /* remove in any case */
551 if (rule->action == NFACCT_ACTION_DELETE) {
552 /* TODO here and everywhere should be not just a del,
553 * here should be get counted value and than
554 * set new counter with that value, but it's minor issue,
555 * due it's not clear when actual counters was stored,
556 * and based on which value settings made such decition */
557 rule->iptables_rule = nfacct_send_del;
558 set_finalize_flag(rule);
559 nfacct_send_get(rule);
560 ret = nfacct_send_del(rule);
561 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
562 "can't del quota counter");
566 if (rule->iotype & NFACCT_COUNTER_OUT) {
568 rule->iotype = NFACCT_COUNTER_OUT;
569 rule->quota = rule->send_limit;
570 generate_counter_name(rule);
571 if (rule->action != NFACCT_ACTION_DELETE) {
572 ret = nfacct_send_del(rule);
573 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
574 "can't del quota counter");
576 ret = nfacct_send_new(rule);
577 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
578 "can't set quota counter");
582 ret = snprintf(nfacct_buf, sizeof(nfacct_buf), NFACCT_NAME_MOD,
584 ret_value_msg_if(ret > sizeof(nfacct_buf) || ret < 0,
585 STC_ERROR_FAIL, "Not enought buffer");
587 /* cgroup extention on FORWARD chain are not allowed
588 * remove classid info in case of tethering rules */
589 if (rule->intend == NFACCT_TETH_COUNTER) {
590 classid = rule->classid;
594 ret = exec_iptables_cmd(rule);
596 /* restore the classid info in case of tethering rule */
597 if (rule->intend == NFACCT_TETH_COUNTER)
598 rule->classid = classid;
600 ret_value_msg_if(ret != STC_ERROR_NONE, STC_ERROR_FAIL,
601 "Can't set conditional block for engress"
602 " traffic, for classid %u, cmd %s, j %s",
603 rule->classid, set_cmd, jump_cmd);
605 if (rule->action == NFACCT_ACTION_DELETE) {
606 rule->iptables_rule = nfacct_send_del;
607 /* not effective, it's better to replace
608 * set_finalize_flag by set_property,
609 * due keep_counter it necessary only for
610 * setting iptables_rule */
611 set_finalize_flag(rule);
612 nfacct_send_get(rule);
613 ret = nfacct_send_del(rule);
614 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
615 "can't del quota counter");
618 return STC_ERROR_NONE;
621 static stc_error_e produce_iface_rule(nfacct_rule_s *rule)
624 return STC_ERROR_INVALID_PARAMETER;
626 char *set_cmd = get_iptables_cmd(rule->action);
627 char *jump_cmd = get_iptables_jump(rule->jump);
628 char nfacct_buf[sizeof(NFACCT_NAME_MOD) +
629 3*MAX_DEC_SIZE(int) + 4 + 1];
630 uint32_t classid = rule->classid;
633 if (rule->iotype & NFACCT_COUNTER_IN) {
635 rule->iotype = NFACCT_COUNTER_IN;
636 rule->quota = rule->rcv_limit;
637 generate_counter_name(rule);
639 if (rule->action != NFACCT_ACTION_DELETE) {
640 /* send delete comman in case of creation,
641 * because nfacct doesn't reset value for nfacct quota
642 * in case of quota existing */
643 ret = nfacct_send_del(rule);
644 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
645 "can't del quota counter");
647 ret = nfacct_send_new(rule);
648 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
649 "can't set quota counter");
653 ret = snprintf(nfacct_buf, sizeof(nfacct_buf),
654 NFACCT_NAME_MOD, rule->name);
655 ret_value_msg_if(ret > sizeof(nfacct_buf) || ret < 0,
656 STC_ERROR_FAIL, "Not enought buffer");
658 classid = rule->classid;
661 ret = exec_iptables_cmd(rule);
662 ret_value_msg_if(ret != STC_ERROR_NONE, STC_ERROR_FAIL,
663 "Can't set conditional block for ingress"
664 " traffic, for iftype %d, cmd %s, j %s",
665 rule->iftype, set_cmd, jump_cmd);
669 if (rule->intend == NFACCT_WARN ||
670 rule->intend == NFACCT_BLOCK) {
671 /* RULE_IFACE_OUT is not a misprint here */
672 nfacct_rule_direction temp_iotype = rule->iotype;
674 rule->iotype = NFACCT_COUNTER_FORWARD;
675 ret = exec_iptables_cmd(rule);
676 rule->iotype = temp_iotype;
677 ret_value_msg_if(ret != STC_ERROR_NONE, STC_ERROR_FAIL,
678 "Can't set forward rule for ingress "
679 "traffic, for iftype %d, cmd %s, j %s",
680 rule->iftype, set_cmd, jump_cmd);
684 if (rule->action == NFACCT_ACTION_DELETE) {
685 rule->iptables_rule = nfacct_send_del;
686 set_finalize_flag(rule);
687 nfacct_send_get(rule);
688 ret = nfacct_send_del(rule);
689 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
690 "can't del quota counter");
695 rule->classid = classid;
697 if (rule->iotype & NFACCT_COUNTER_OUT) {
699 rule->iotype = NFACCT_COUNTER_OUT;
700 rule->quota = rule->send_limit;
701 generate_counter_name(rule);
703 if (rule->action != NFACCT_ACTION_DELETE) {
704 /* send delete comman in case of creation,
705 * because nfacct doesn't reset value for nfacct quota
706 * in case of quota existing */
707 ret = nfacct_send_del(rule);
708 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
709 "can't del quota counter");
711 ret = nfacct_send_new(rule);
712 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
713 "can't set quota counter");
717 ret = snprintf(nfacct_buf, sizeof(nfacct_buf),
718 NFACCT_NAME_MOD, rule->name);
719 ret_value_msg_if(ret > sizeof(nfacct_buf) || ret < 0,
720 STC_ERROR_FAIL, "Not enough buffer");
722 classid = rule->classid;
725 ret = exec_iptables_cmd(rule);
726 ret_value_msg_if(ret != STC_ERROR_NONE, STC_ERROR_FAIL,
727 "Can't set conditional block for "
728 "engress traffic, for iftype %d, cmd %s, j %s",
729 rule->iftype, set_cmd, jump_cmd);
733 if (rule->intend == NFACCT_WARN ||
734 rule->intend == NFACCT_BLOCK) {
735 nfacct_rule_direction temp_iotype = rule->iotype;
737 rule->iotype = NFACCT_COUNTER_OUT;
738 ret = exec_iptables_cmd(rule);
739 rule->iotype = temp_iotype;
740 ret_value_msg_if(ret != STC_ERROR_NONE, STC_ERROR_FAIL,
741 "Can't set forward rule for engress "
742 "traffic, for iftype %d, cmd %s, j %s",
743 rule->iftype, set_cmd, jump_cmd);
747 if (rule->action == NFACCT_ACTION_DELETE) {
748 rule->iptables_rule = nfacct_send_del;
749 set_finalize_flag(rule);
750 nfacct_send_get(rule);
751 ret = nfacct_send_del(rule);
752 ret_value_msg_if(ret != STC_ERROR_NONE, ret,
753 "can't del quota counter");
757 return STC_ERROR_NONE;
760 stc_error_e produce_net_rule(nfacct_rule_s *rule)
762 stc_error_e ret = STC_ERROR_NONE;
765 return STC_ERROR_INVALID_PARAMETER;
767 if (rule->action == NFACCT_ACTION_APPEND &&
768 rule->intend == NFACCT_WARN &&
769 !rule->send_limit && !rule->rcv_limit)
770 return STC_ERROR_NONE;
772 if (rule->classid != STC_ALL_APP_CLASSID &&
773 rule->classid != STC_TETHERING_APP_CLASSID &&
774 rule->classid != STC_TOTAL_DATACALL_CLASSID &&
775 rule->classid != STC_TOTAL_WIFI_CLASSID &&
776 rule->classid != STC_TOTAL_BLUETOOTH_CLASSID &&
777 rule->classid != STC_TOTAL_IPV4_CLASSID &&
778 rule->classid != STC_TOTAL_IPV6_CLASSID)
779 ret = produce_app_rule(rule);
781 ret = produce_iface_rule(rule);
786 void generate_counter_name(nfacct_rule_s *counter)
788 char warn_symbol = 'c';
789 if (!strlen(counter->ifname)) {
790 char *iftype_name = get_iftype_name(counter->iftype);
791 /* trace counter name, maybe name was already generated */
792 ret_msg_if(iftype_name == NULL,
793 "Can't get interface name for counter %s, iftype %d)!",
794 counter->name, counter->iftype);
795 STRING_SAVE_COPY(counter->ifname, iftype_name);
798 if (counter->intend == NFACCT_WARN)
800 else if (counter->intend == NFACCT_BLOCK)
802 else if (counter->intend == NFACCT_ALLOW)
804 snprintf(counter->name, NFACCT_NAME_MAX, "%c%d_%d_%d_%s",
805 warn_symbol, counter->iotype, counter->iftype,
806 counter->classid, counter->ifname);