2 * collectd - src/tcpconns.c
3 * Copyright (C) 2007,2008 Florian octo Forster
4 * Copyright (C) 2008 Michael Stapelberg
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Florian octo Forster <octo at verplant.org>
21 * Michael Stapelberg <michael+git at stapelberg.de>
25 * Code within `HAVE_LIBKVM_NLIST' blocks is provided under the following
28 * $collectd: parts of tcpconns.c, 2008/08/08 03:48:30 Michael Stapelberg $
29 * $OpenBSD: inet.c,v 1.100 2007/06/19 05:28:30 ray Exp $
30 * $NetBSD: inet.c,v 1.14 1995/10/03 21:42:37 thorpej Exp $
32 * Copyright (c) 1983, 1988, 1993
33 * The Regents of the University of California. All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. Neither the name of the University nor the names of its contributors
44 * may be used to endorse or promote products derived from this software
45 * without specific prior written permission.
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 #if defined(__OpenBSD__) || defined(__NetBSD__)
65 #undef HAVE_SYSCTLBYNAME /* force HAVE_LIBKVM_NLIST path */
68 #if !KERNEL_LINUX && !HAVE_SYSCTLBYNAME && !HAVE_LIBKVM_NLIST && !KERNEL_AIX
69 # error "No applicable input method."
73 # include <asm/types.h>
74 /* sys/socket.h is necessary to compile when using netlink on older systems. */
75 # include <sys/socket.h>
76 # include <linux/netlink.h>
77 #if HAVE_LINUX_INET_DIAG_H
78 # include <linux/inet_diag.h>
80 # include <sys/socket.h>
81 # include <arpa/inet.h>
82 /* #endif KERNEL_LINUX */
84 #elif HAVE_SYSCTLBYNAME
85 # include <sys/socketvar.h>
86 # include <sys/sysctl.h>
88 /* Some includes needed for compiling on FreeBSD */
91 # include <sys/types.h>
94 # include <sys/socket.h>
100 # include <net/route.h>
101 # include <netinet/in.h>
102 # include <netinet/in_systm.h>
103 # include <netinet/ip.h>
104 # include <netinet/ip6.h>
105 # include <netinet/in_pcb.h>
106 # include <netinet/ip_var.h>
107 # include <netinet/tcp.h>
108 # include <netinet/tcpip.h>
109 # include <netinet/tcp_seq.h>
110 # include <netinet/tcp_var.h>
111 /* #endif HAVE_SYSCTLBYNAME */
113 /* This is for OpenBSD and NetBSD. */
114 #elif HAVE_LIBKVM_NLIST
115 # include <sys/queue.h>
116 # include <sys/socket.h>
117 # include <net/route.h>
118 # include <netinet/in.h>
119 # include <netinet/in_systm.h>
120 # include <netinet/ip.h>
121 # include <netinet/ip_var.h>
122 # include <netinet/in_pcb.h>
123 # include <netinet/tcp.h>
124 # include <netinet/tcp_timer.h>
125 # include <netinet/tcp_var.h>
127 # include <arpa/inet.h>
128 # if !defined(HAVE_BSD_NLIST_H) || !HAVE_BSD_NLIST_H
130 # else /* HAVE_BSD_NLIST_H */
131 # include <bsd/nlist.h>
134 /* #endif HAVE_LIBKVM_NLIST */
137 # include <arpa/inet.h>
138 # include <sys/socketvar.h>
139 #endif /* KERNEL_AIX */
142 #if HAVE_STRUCT_LINUX_INET_DIAG_REQ
145 struct inet_diag_req r;
149 static const char *tcp_state[] =
165 # define TCP_STATE_LISTEN 10
166 # define TCP_STATE_MIN 1
167 # define TCP_STATE_MAX 11
168 /* #endif KERNEL_LINUX */
170 #elif HAVE_SYSCTLBYNAME
171 static const char *tcp_state[] =
186 # define TCP_STATE_LISTEN 1
187 # define TCP_STATE_MIN 0
188 # define TCP_STATE_MAX 10
189 /* #endif HAVE_SYSCTLBYNAME */
191 #elif HAVE_LIBKVM_NLIST
192 static const char *tcp_state[] =
208 static u_long inpcbtable_off = 0;
209 struct inpcbtable *inpcbtable_ptr = NULL;
211 # define TCP_STATE_LISTEN 1
212 # define TCP_STATE_MIN 1
213 # define TCP_STATE_MAX 10
214 /* #endif HAVE_LIBKVM_NLIST */
217 static const char *tcp_state[] =
232 # define TCP_STATE_LISTEN 1
233 # define TCP_STATE_MIN 0
234 # define TCP_STATE_MAX 10
236 struct netinfo_conn {
240 struct in6_addr dstaddr;
243 struct in6_addr srcaddr;
244 uint32_t unknow4[36];
249 struct netinfo_header {
254 # define NETINFO_TCP 3
255 extern int netinfo (int proto, void *data, int *size, int n);
256 #endif /* KERNEL_AIX */
258 #define PORT_COLLECT_LOCAL 0x01
259 #define PORT_COLLECT_REMOTE 0x02
260 #define PORT_IS_LISTENING 0x04
262 typedef struct port_entry_s
266 uint32_t count_local[TCP_STATE_MAX + 1];
267 uint32_t count_remote[TCP_STATE_MAX + 1];
268 struct port_entry_s *next;
271 static const char *config_keys[] =
277 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
279 static int port_collect_listening = 0;
280 static port_entry_t *port_list_head = NULL;
283 #if HAVE_STRUCT_LINUX_INET_DIAG_REQ
284 /* This depends on linux inet_diag_req because if this structure is missing,
285 * sequence_number is useless and we get a compilation warning.
287 static uint32_t sequence_number = 0;
295 } linux_source = SRC_DUNNO;
298 static void conn_submit_port_entry (port_entry_t *pe)
301 value_list_t vl = VALUE_LIST_INIT;
306 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
307 sstrncpy (vl.plugin, "tcpconns", sizeof (vl.plugin));
308 sstrncpy (vl.type, "tcp_connections", sizeof (vl.type));
310 if (((port_collect_listening != 0) && (pe->flags & PORT_IS_LISTENING))
311 || (pe->flags & PORT_COLLECT_LOCAL))
313 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
314 "%"PRIu16"-local", pe->port);
316 for (i = 1; i <= TCP_STATE_MAX; i++)
318 vl.values[0].gauge = pe->count_local[i];
320 sstrncpy (vl.type_instance, tcp_state[i], sizeof (vl.type_instance));
322 plugin_dispatch_values (&vl);
326 if (pe->flags & PORT_COLLECT_REMOTE)
328 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
329 "%"PRIu16"-remote", pe->port);
331 for (i = 1; i <= TCP_STATE_MAX; i++)
333 vl.values[0].gauge = pe->count_remote[i];
335 sstrncpy (vl.type_instance, tcp_state[i], sizeof (vl.type_instance));
337 plugin_dispatch_values (&vl);
340 } /* void conn_submit */
342 static void conn_submit_all (void)
346 for (pe = port_list_head; pe != NULL; pe = pe->next)
347 conn_submit_port_entry (pe);
348 } /* void conn_submit_all */
350 static port_entry_t *conn_get_port_entry (uint16_t port, int create)
354 ret = port_list_head;
357 if (ret->port == port)
362 if ((ret == NULL) && (create != 0))
364 ret = (port_entry_t *) malloc (sizeof (port_entry_t));
367 memset (ret, '\0', sizeof (port_entry_t));
370 ret->next = port_list_head;
371 port_list_head = ret;
375 } /* port_entry_t *conn_get_port_entry */
377 /* Removes ports that were added automatically due to the `ListeningPorts'
378 * setting but which are no longer listening. */
379 static void conn_reset_port_entry (void)
381 port_entry_t *prev = NULL;
382 port_entry_t *pe = port_list_head;
386 /* If this entry was created while reading the files (ant not when handling
387 * the configuration) remove it now. */
388 if ((pe->flags & (PORT_COLLECT_LOCAL
389 | PORT_COLLECT_REMOTE
390 | PORT_IS_LISTENING)) == 0)
392 port_entry_t *next = pe->next;
394 DEBUG ("tcpconns plugin: Removing temporary entry "
395 "for listening port %"PRIu16, pe->port);
398 port_list_head = next;
408 memset (pe->count_local, '\0', sizeof (pe->count_local));
409 memset (pe->count_remote, '\0', sizeof (pe->count_remote));
410 pe->flags &= ~PORT_IS_LISTENING;
415 } /* void conn_reset_port_entry */
417 static int conn_handle_ports (uint16_t port_local, uint16_t port_remote, uint8_t state)
419 port_entry_t *pe = NULL;
421 if ((state > TCP_STATE_MAX)
422 #if TCP_STATE_MIN > 0
423 || (state < TCP_STATE_MIN)
427 NOTICE ("tcpconns plugin: Ignoring connection with "
428 "unknown state 0x%02"PRIx8".", state);
432 /* Listening sockets */
433 if ((state == TCP_STATE_LISTEN) && (port_collect_listening != 0))
435 pe = conn_get_port_entry (port_local, 1 /* create */);
437 pe->flags |= PORT_IS_LISTENING;
440 DEBUG ("tcpconns plugin: Connection %"PRIu16" <-> %"PRIu16" (%s)",
441 port_local, port_remote, tcp_state[state]);
443 pe = conn_get_port_entry (port_local, 0 /* no create */);
445 pe->count_local[state]++;
447 pe = conn_get_port_entry (port_remote, 0 /* no create */);
449 pe->count_remote[state]++;
452 } /* int conn_handle_ports */
455 /* Returns zero on success, less than zero on socket error and greater than
456 * zero on other errors. */
457 static int conn_read_netlink (void)
459 #if HAVE_STRUCT_LINUX_INET_DIAG_REQ
461 struct sockaddr_nl nladdr;
465 struct inet_diag_msg *r;
468 /* If this fails, it's likely a permission problem. We'll fall back to
469 * reading this information from files below. */
470 fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG);
473 ERROR ("tcpconns plugin: conn_read_netlink: socket(AF_NETLINK, SOCK_RAW, "
474 "NETLINK_INET_DIAG) failed: %s",
475 sstrerror (errno, buf, sizeof (buf)));
479 memset(&nladdr, 0, sizeof(nladdr));
480 nladdr.nl_family = AF_NETLINK;
482 memset(&req, 0, sizeof(req));
483 req.nlh.nlmsg_len = sizeof(req);
484 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
485 /* NLM_F_ROOT: return the complete table instead of a single entry.
486 * NLM_F_MATCH: return all entries matching criteria (not implemented)
487 * NLM_F_REQUEST: must be set on all request messages */
488 req.nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
489 req.nlh.nlmsg_pid = 0;
490 /* The sequence_number is used to track our messages. Since netlink is not
491 * reliable, we don't want to end up with a corrupt or incomplete old
492 * message in case the system is/was out of memory. */
493 req.nlh.nlmsg_seq = ++sequence_number;
494 req.r.idiag_family = AF_INET;
495 req.r.idiag_states = 0xfff;
498 memset(&iov, 0, sizeof(iov));
500 iov.iov_len = sizeof(req);
502 memset(&msg, 0, sizeof(msg));
503 msg.msg_name = (void*)&nladdr;
504 msg.msg_namelen = sizeof(nladdr);
508 if (sendmsg (fd, &msg, 0) < 0)
510 ERROR ("tcpconns plugin: conn_read_netlink: sendmsg(2) failed: %s",
511 sstrerror (errno, buf, sizeof (buf)));
517 iov.iov_len = sizeof(buf);
524 memset(&msg, 0, sizeof(msg));
525 msg.msg_name = (void*)&nladdr;
526 msg.msg_namelen = sizeof(nladdr);
530 status = recvmsg(fd, (void *) &msg, /* flags = */ 0);
533 if ((errno == EINTR) || (errno == EAGAIN))
536 ERROR ("tcpconns plugin: conn_read_netlink: recvmsg(2) failed: %s",
537 sstrerror (errno, buf, sizeof (buf)));
541 else if (status == 0)
544 DEBUG ("tcpconns plugin: conn_read_netlink: Unexpected zero-sized "
545 "reply from netlink socket.");
549 h = (struct nlmsghdr*)buf;
550 while (NLMSG_OK(h, status))
552 if (h->nlmsg_seq != sequence_number)
554 h = NLMSG_NEXT(h, status);
558 if (h->nlmsg_type == NLMSG_DONE)
563 else if (h->nlmsg_type == NLMSG_ERROR)
565 struct nlmsgerr *msg_error;
567 msg_error = NLMSG_DATA(h);
568 WARNING ("tcpconns plugin: conn_read_netlink: Received error %i.",
577 /* This code does not (need to) distinguish between IPv4 and IPv6. */
578 conn_handle_ports (ntohs(r->id.idiag_sport),
579 ntohs(r->id.idiag_dport),
582 h = NLMSG_NEXT(h, status);
583 } /* while (NLMSG_OK) */
586 /* Not reached because the while() loop above handles the exit condition. */
590 #endif /* HAVE_STRUCT_LINUX_INET_DIAG_REQ */
591 } /* int conn_read_netlink */
593 static int conn_handle_line (char *buffer)
600 char *port_local_str;
601 char *port_remote_str;
603 uint16_t port_remote;
607 int buffer_len = strlen (buffer);
609 while ((buffer_len > 0) && (buffer[buffer_len - 1] < 32))
610 buffer[--buffer_len] = '\0';
614 fields_len = strsplit (buffer, fields, STATIC_ARRAY_SIZE (fields));
617 DEBUG ("tcpconns plugin: Got %i fields, expected at least 12.", fields_len);
621 port_local_str = strchr (fields[1], ':');
622 port_remote_str = strchr (fields[2], ':');
624 if ((port_local_str == NULL) || (port_remote_str == NULL))
628 if ((*port_local_str == '\0') || (*port_remote_str == '\0'))
632 port_local = (uint16_t) strtol (port_local_str, &endptr, 16);
633 if ((endptr == NULL) || (*endptr != '\0'))
637 port_remote = (uint16_t) strtol (port_remote_str, &endptr, 16);
638 if ((endptr == NULL) || (*endptr != '\0'))
642 state = (uint8_t) strtol (fields[3], &endptr, 16);
643 if ((endptr == NULL) || (*endptr != '\0'))
646 return (conn_handle_ports (port_local, port_remote, state));
647 } /* int conn_handle_line */
649 static int conn_read_file (const char *file)
654 fh = fopen (file, "r");
658 while (fgets (buffer, sizeof (buffer), fh) != NULL)
660 conn_handle_line (buffer);
661 } /* while (fgets) */
666 } /* int conn_read_file */
667 /* #endif KERNEL_LINUX */
669 #elif HAVE_SYSCTLBYNAME
670 /* #endif HAVE_SYSCTLBYNAME */
672 #elif HAVE_LIBKVM_NLIST
673 #endif /* HAVE_LIBKVM_NLIST */
675 static int conn_config (const char *key, const char *value)
677 if (strcasecmp (key, "ListeningPorts") == 0)
680 port_collect_listening = 1;
682 port_collect_listening = 0;
684 else if ((strcasecmp (key, "LocalPort") == 0)
685 || (strcasecmp (key, "RemotePort") == 0))
688 int port = atoi (value);
690 if ((port < 1) || (port > 65535))
692 ERROR ("tcpconns plugin: Invalid port: %i", port);
696 pe = conn_get_port_entry ((uint16_t) port, 1 /* create */);
699 ERROR ("tcpconns plugin: conn_get_port_entry failed.");
703 if (strcasecmp (key, "LocalPort") == 0)
704 pe->flags |= PORT_COLLECT_LOCAL;
706 pe->flags |= PORT_COLLECT_REMOTE;
714 } /* int conn_config */
717 static int conn_init (void)
719 if (port_list_head == NULL)
720 port_collect_listening = 1;
723 } /* int conn_init */
725 static int conn_read (void)
729 conn_reset_port_entry ();
731 if (linux_source == SRC_NETLINK)
733 status = conn_read_netlink ();
735 else if (linux_source == SRC_PROC)
739 if (conn_read_file ("/proc/net/tcp") != 0)
741 if (conn_read_file ("/proc/net/tcp6") != 0)
749 else /* if (linux_source == SRC_DUNNO) */
751 /* Try to use netlink for getting this data, it is _much_ faster on systems
752 * with a large amount of connections. */
753 status = conn_read_netlink ();
756 INFO ("tcpconns plugin: Reading from netlink succeeded. "
757 "Will use the netlink method from now on.");
758 linux_source = SRC_NETLINK;
762 INFO ("tcpconns plugin: Reading from netlink failed. "
763 "Will read from /proc from now on.");
764 linux_source = SRC_PROC;
766 /* return success here to avoid the "plugin failed" message. */
777 } /* int conn_read */
778 /* #endif KERNEL_LINUX */
780 #elif HAVE_SYSCTLBYNAME
781 static int conn_read (void)
787 struct xinpgen *in_orig;
788 struct xinpgen *in_ptr;
790 conn_reset_port_entry ();
793 status = sysctlbyname ("net.inet.tcp.pcblist", NULL, &buffer_len, 0, 0);
796 ERROR ("tcpconns plugin: sysctlbyname failed.");
800 buffer = (char *) malloc (buffer_len);
803 ERROR ("tcpconns plugin: malloc failed.");
807 status = sysctlbyname ("net.inet.tcp.pcblist", buffer, &buffer_len, 0, 0);
810 ERROR ("tcpconns plugin: sysctlbyname failed.");
815 if (buffer_len <= sizeof (struct xinpgen))
817 ERROR ("tcpconns plugin: (buffer_len <= sizeof (struct xinpgen))");
822 in_orig = (struct xinpgen *) buffer;
823 for (in_ptr = (struct xinpgen *) (((char *) in_orig) + in_orig->xig_len);
824 in_ptr->xig_len > sizeof (struct xinpgen);
825 in_ptr = (struct xinpgen *) (((char *) in_ptr) + in_ptr->xig_len))
827 struct tcpcb *tp = &((struct xtcpcb *) in_ptr)->xt_tp;
828 struct inpcb *inp = &((struct xtcpcb *) in_ptr)->xt_inp;
829 struct xsocket *so = &((struct xtcpcb *) in_ptr)->xt_socket;
831 /* Ignore non-TCP sockets */
832 if (so->xso_protocol != IPPROTO_TCP)
835 /* Ignore PCBs which were freed during copyout. */
836 if (inp->inp_gencnt > in_orig->xig_gen)
839 if (((inp->inp_vflag & INP_IPV4) == 0)
840 && ((inp->inp_vflag & INP_IPV6) == 0))
843 conn_handle_ports (ntohs (inp->inp_lport), ntohs (inp->inp_fport),
854 } /* int conn_read */
855 /* #endif HAVE_SYSCTLBYNAME */
857 #elif HAVE_LIBKVM_NLIST
858 static int kread (u_long addr, void *buf, int size)
862 status = kvm_read (kvmd, addr, buf, size);
865 ERROR ("tcpconns plugin: kvm_read failed (got %i, expected %i): %s\n",
866 status, size, kvm_geterr (kvmd));
872 static int conn_init (void)
874 char buf[_POSIX2_LINE_MAX];
883 kvmd = kvm_openfiles (NULL, NULL, NULL, O_RDONLY, buf);
886 ERROR ("tcpconns plugin: kvm_openfiles failed: %s", buf);
890 status = kvm_nlist (kvmd, nl);
893 ERROR ("tcpconns plugin: kvm_nlist failed with status %i.", status);
897 if (nl[N_TCBTABLE].n_type == 0)
899 ERROR ("tcpconns plugin: Error looking up kernel's namelist: "
900 "N_TCBTABLE is invalid.");
904 inpcbtable_off = (u_long) nl[N_TCBTABLE].n_value;
905 inpcbtable_ptr = (struct inpcbtable *) nl[N_TCBTABLE].n_value;
908 } /* int conn_init */
910 static int conn_read (void)
912 struct inpcbtable table;
919 conn_reset_port_entry ();
921 /* Read the pcbtable from the kernel */
922 status = kread (inpcbtable_off, &table, sizeof (table));
926 /* Get the `head' pcb */
927 head = (struct inpcb *) &(inpcbtable_ptr->inpt_queue);
928 /* Get the first pcb */
929 next = (struct inpcb *)CIRCLEQ_FIRST (&table.inpt_queue);
933 /* Read the pcb pointed to by `next' into `inpcb' */
934 status = kread ((u_long) next, &inpcb, sizeof (inpcb));
939 next = (struct inpcb *)CIRCLEQ_NEXT (&inpcb, inp_queue);
941 /* Ignore sockets, that are not connected. */
943 if (inpcb.inp_af == AF_INET6)
944 continue; /* XXX see netbsd/src/usr.bin/netstat/inet6.c */
946 if (!(inpcb.inp_flags & INP_IPV6)
947 && (inet_lnaof(inpcb.inp_laddr) == INADDR_ANY))
949 if ((inpcb.inp_flags & INP_IPV6)
950 && IN6_IS_ADDR_UNSPECIFIED (&inpcb.inp_laddr6))
954 status = kread ((u_long) inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb));
957 conn_handle_ports (ntohs(inpcb.inp_lport), ntohs(inpcb.inp_fport), tcpcb.t_state);
958 } /* while (next != head) */
964 /* #endif HAVE_LIBKVM_NLIST */
968 static int conn_read (void)
974 struct netinfo_header *header;
975 struct netinfo_conn *conn;
977 conn_reset_port_entry ();
979 size = netinfo(NETINFO_TCP, 0, 0, 0);
982 ERROR ("tcpconns plugin: netinfo failed return: %i", size);
989 if ((size - sizeof (struct netinfo_header)) % sizeof (struct netinfo_conn))
991 ERROR ("tcpconns plugin: invalid buffer size");
998 ERROR ("tcpconns plugin: malloc failed");
1002 if (netinfo(NETINFO_TCP, data, &size, 0) < 0)
1004 ERROR ("tcpconns plugin: netinfo failed");
1009 header = (struct netinfo_header *)data;
1010 nconn = header->size;
1011 conn = (struct netinfo_conn *)(data + sizeof(struct netinfo_header));
1013 for (i=0; i < nconn; conn++, i++)
1015 conn_handle_ports (conn->srcport, conn->dstport, conn->tcp_state);
1024 #endif /* KERNEL_AIX */
1026 void module_register (void)
1028 plugin_register_config ("tcpconns", conn_config,
1029 config_keys, config_keys_num);
1031 plugin_register_init ("tcpconns", conn_init);
1032 #elif HAVE_SYSCTLBYNAME
1033 /* no initialization */
1034 #elif HAVE_LIBKVM_NLIST
1035 plugin_register_init ("tcpconns", conn_init);
1037 /* no initialization */
1039 plugin_register_read ("tcpconns", conn_read);
1040 } /* void module_register */
1043 * vim: set shiftwidth=2 softtabstop=2 tabstop=8 fdm=marker :