3 #define RRD_TYPE_NET_STAT_NETFILTER "netfilter"
4 #define RRD_TYPE_NET_STAT_SYNPROXY "synproxy"
6 int do_proc_net_stat_synproxy(int update_every, usec_t dt) {
9 static int do_entries = -1, do_cookies = -1, do_syns = -1, do_reopened = -1;
10 static procfile *ff = NULL;
12 if(unlikely(do_entries == -1)) {
13 do_entries = config_get_boolean_ondemand("plugin:proc:/proc/net/stat/synproxy", "SYNPROXY entries", CONFIG_ONDEMAND_ONDEMAND);
14 do_cookies = config_get_boolean_ondemand("plugin:proc:/proc/net/stat/synproxy", "SYNPROXY cookies", CONFIG_ONDEMAND_ONDEMAND);
15 do_syns = config_get_boolean_ondemand("plugin:proc:/proc/net/stat/synproxy", "SYNPROXY SYN received", CONFIG_ONDEMAND_ONDEMAND);
16 do_reopened = config_get_boolean_ondemand("plugin:proc:/proc/net/stat/synproxy", "SYNPROXY connections reopened", CONFIG_ONDEMAND_ONDEMAND);
20 char filename[FILENAME_MAX + 1];
21 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/net/stat/synproxy");
22 ff = procfile_open(config_get("plugin:proc:/proc/net/stat/synproxy", "filename to monitor", filename), " \t,:|", PROCFILE_FLAG_DEFAULT);
27 ff = procfile_readall(ff);
29 return 0; // we return 0, so that we will retry to open it next time
31 // make sure we have 3 lines
32 size_t lines = procfile_lines(ff), l;
33 if(unlikely(lines < 2)) {
34 error("/proc/net/stat/synproxy has %zu lines, expected no less than 2. Disabling it.", lines);
38 unsigned long long entries = 0, syn_received = 0, cookie_invalid = 0, cookie_valid = 0, cookie_retrans = 0, conn_reopened = 0;
40 // synproxy gives its values per CPU
41 for(l = 1; l < lines ;l++) {
42 int words = procfile_linewords(ff, l);
43 if(unlikely(words < 6))
46 entries += strtoull(procfile_lineword(ff, l, 0), NULL, 16);
47 syn_received += strtoull(procfile_lineword(ff, l, 1), NULL, 16);
48 cookie_invalid += strtoull(procfile_lineword(ff, l, 2), NULL, 16);
49 cookie_valid += strtoull(procfile_lineword(ff, l, 3), NULL, 16);
50 cookie_retrans += strtoull(procfile_lineword(ff, l, 4), NULL, 16);
51 conn_reopened += strtoull(procfile_lineword(ff, l, 5), NULL, 16);
54 unsigned long long events = entries + syn_received + cookie_invalid + cookie_valid + cookie_retrans + conn_reopened;
58 // --------------------------------------------------------------------
60 if((do_entries == CONFIG_ONDEMAND_ONDEMAND && events) || do_entries == CONFIG_ONDEMAND_YES) {
61 do_entries = CONFIG_ONDEMAND_YES;
63 st = rrdset_find(RRD_TYPE_NET_STAT_NETFILTER "." RRD_TYPE_NET_STAT_SYNPROXY "_entries");
65 st = rrdset_create(RRD_TYPE_NET_STAT_NETFILTER, RRD_TYPE_NET_STAT_SYNPROXY "_entries", NULL, RRD_TYPE_NET_STAT_SYNPROXY, NULL, "SYNPROXY Entries Used", "entries", 3304, update_every, RRDSET_TYPE_LINE);
67 rrddim_add(st, "entries", NULL, 1, 1, RRDDIM_ABSOLUTE);
71 rrddim_set(st, "entries", entries);
75 // --------------------------------------------------------------------
77 if((do_syns == CONFIG_ONDEMAND_ONDEMAND && events) || do_syns == CONFIG_ONDEMAND_YES) {
78 do_syns = CONFIG_ONDEMAND_YES;
80 st = rrdset_find(RRD_TYPE_NET_STAT_NETFILTER "." RRD_TYPE_NET_STAT_SYNPROXY "_syn_received");
82 st = rrdset_create(RRD_TYPE_NET_STAT_NETFILTER, RRD_TYPE_NET_STAT_SYNPROXY "_syn_received", NULL, RRD_TYPE_NET_STAT_SYNPROXY, NULL, "SYNPROXY SYN Packets received", "SYN/s", 3301, update_every, RRDSET_TYPE_LINE);
84 rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL);
88 rrddim_set(st, "received", syn_received);
92 // --------------------------------------------------------------------
94 if((do_reopened == CONFIG_ONDEMAND_ONDEMAND && events) || do_reopened == CONFIG_ONDEMAND_YES) {
95 do_reopened = CONFIG_ONDEMAND_YES;
97 st = rrdset_find(RRD_TYPE_NET_STAT_NETFILTER "." RRD_TYPE_NET_STAT_SYNPROXY "_conn_reopened");
99 st = rrdset_create(RRD_TYPE_NET_STAT_NETFILTER, RRD_TYPE_NET_STAT_SYNPROXY "_conn_reopened", NULL, RRD_TYPE_NET_STAT_SYNPROXY, NULL, "SYNPROXY Connections Reopened", "connections/s", 3303, update_every, RRDSET_TYPE_LINE);
101 rrddim_add(st, "reopened", NULL, 1, 1, RRDDIM_INCREMENTAL);
103 else rrdset_next(st);
105 rrddim_set(st, "reopened", conn_reopened);
109 // --------------------------------------------------------------------
111 if((do_cookies == CONFIG_ONDEMAND_ONDEMAND && events) || do_cookies == CONFIG_ONDEMAND_YES) {
112 do_cookies = CONFIG_ONDEMAND_YES;
114 st = rrdset_find(RRD_TYPE_NET_STAT_NETFILTER "." RRD_TYPE_NET_STAT_SYNPROXY "_cookies");
116 st = rrdset_create(RRD_TYPE_NET_STAT_NETFILTER, RRD_TYPE_NET_STAT_SYNPROXY "_cookies", NULL, RRD_TYPE_NET_STAT_SYNPROXY, NULL, "SYNPROXY TCP Cookies", "cookies/s", 3302, update_every, RRDSET_TYPE_LINE);
118 rrddim_add(st, "valid", NULL, 1, 1, RRDDIM_INCREMENTAL);
119 rrddim_add(st, "invalid", NULL, -1, 1, RRDDIM_INCREMENTAL);
120 rrddim_add(st, "retransmits", NULL, 1, 1, RRDDIM_INCREMENTAL);
122 else rrdset_next(st);
124 rrddim_set(st, "valid", cookie_valid);
125 rrddim_set(st, "invalid", cookie_invalid);
126 rrddim_set(st, "retransmits", cookie_retrans);