#endif
#if !KERNEL_LINUX && !HAVE_SYSCTLBYNAME && !HAVE_LIBKVM_NLIST && !KERNEL_AIX
-# error "No applicable input method."
+#error "No applicable input method."
#endif
#if KERNEL_LINUX
-# include <linux/netlink.h>
+#include <asm/types.h>
+#include <linux/netlink.h>
#if HAVE_LINUX_INET_DIAG_H
-# include <linux/inet_diag.h>
+#include <linux/inet_diag.h>
#endif
+#include <arpa/inet.h>
/* #endif KERNEL_LINUX */
#elif HAVE_SYSCTLBYNAME
-# include <sys/socketvar.h>
-# include <sys/sysctl.h>
+#include <sys/socketvar.h>
+#include <sys/sysctl.h>
/* Some includes needed for compiling on FreeBSD */
#include <sys/time.h>
#if HAVE_SYS_TYPES_H
-# include <sys/types.h>
+#include <sys/types.h>
#endif
#if HAVE_NET_IF_H
-# include <net/if.h>
+#include <net/if.h>
#endif
-# include <net/route.h>
-# include <netinet/in.h>
-# include <netinet/in_systm.h>
-# include <netinet/ip.h>
-# include <netinet/ip6.h>
-# include <netinet/in_pcb.h>
-# include <netinet/ip_var.h>
-# include <netinet/tcp.h>
-# include <netinet/tcpip.h>
-# include <netinet/tcp_seq.h>
-# include <netinet/tcp_var.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_pcb.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/ip_var.h>
+#include <netinet/tcp.h>
+#include <netinet/tcp_seq.h>
+#include <netinet/tcp_var.h>
+#include <netinet/tcpip.h>
/* #endif HAVE_SYSCTLBYNAME */
/* This is for OpenBSD and NetBSD. */
#elif HAVE_LIBKVM_NLIST
-# include <sys/queue.h>
-# include <net/route.h>
-# include <netinet/in.h>
-# include <netinet/in_systm.h>
-# include <netinet/ip.h>
-# include <netinet/ip_var.h>
-# include <netinet/in_pcb.h>
-# include <netinet/tcp.h>
-# include <netinet/tcp_timer.h>
-# include <netinet/tcp_var.h>
-# include <netdb.h>
-# include <arpa/inet.h>
-# if !defined(HAVE_BSD_NLIST_H) || !HAVE_BSD_NLIST_H
-# include <nlist.h>
-# else /* HAVE_BSD_NLIST_H */
-# include <bsd/nlist.h>
-# endif
-# include <kvm.h>
+#include <arpa/inet.h>
+#include <net/route.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/in_pcb.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/tcp.h>
+#include <netinet/tcp_timer.h>
+#include <netinet/tcp_var.h>
+#include <sys/queue.h>
+#if !defined(HAVE_BSD_NLIST_H) || !HAVE_BSD_NLIST_H
+#include <nlist.h>
+#else /* HAVE_BSD_NLIST_H */
+#include <bsd/nlist.h>
+#endif
+#include <kvm.h>
/* #endif HAVE_LIBKVM_NLIST */
#elif KERNEL_AIX
-# include <sys/socketvar.h>
+#include <arpa/inet.h>
+#include <sys/socketvar.h>
#endif /* KERNEL_AIX */
#if KERNEL_LINUX
};
#endif
-static const char *tcp_state[] =
-{
- "", /* 0 */
- "ESTABLISHED",
- "SYN_SENT",
- "SYN_RECV",
- "FIN_WAIT1",
- "FIN_WAIT2",
- "TIME_WAIT",
- "CLOSED",
- "CLOSE_WAIT",
- "LAST_ACK",
- "LISTEN", /* 10 */
- "CLOSING"
-};
-
-# define TCP_STATE_LISTEN 10
-# define TCP_STATE_MIN 1
-# define TCP_STATE_MAX 11
+static const char *tcp_state[] = {"", /* 0 */
+ "ESTABLISHED",
+ "SYN_SENT",
+ "SYN_RECV",
+ "FIN_WAIT1",
+ "FIN_WAIT2",
+ "TIME_WAIT",
+ "CLOSED",
+ "CLOSE_WAIT",
+ "LAST_ACK",
+ "LISTEN", /* 10 */
+ "CLOSING"};
+
+#define TCP_STATE_LISTEN 10
+#define TCP_STATE_MIN 1
+#define TCP_STATE_MAX 11
/* #endif KERNEL_LINUX */
#elif HAVE_SYSCTLBYNAME
-static const char *tcp_state[] =
-{
- "CLOSED",
- "LISTEN",
- "SYN_SENT",
- "SYN_RECV",
- "ESTABLISHED",
- "CLOSE_WAIT",
- "FIN_WAIT1",
- "CLOSING",
- "LAST_ACK",
- "FIN_WAIT2",
- "TIME_WAIT"
-};
-
-# define TCP_STATE_LISTEN 1
-# define TCP_STATE_MIN 0
-# define TCP_STATE_MAX 10
+static const char *tcp_state[] = {"CLOSED", "LISTEN", "SYN_SENT",
+ "SYN_RECV", "ESTABLISHED", "CLOSE_WAIT",
+ "FIN_WAIT1", "CLOSING", "LAST_ACK",
+ "FIN_WAIT2", "TIME_WAIT"};
+
+#define TCP_STATE_LISTEN 1
+#define TCP_STATE_MIN 0
+#define TCP_STATE_MAX 10
/* #endif HAVE_SYSCTLBYNAME */
#elif HAVE_LIBKVM_NLIST
-static const char *tcp_state[] =
-{
- "CLOSED",
- "LISTEN",
- "SYN_SENT",
- "SYN_RECV",
- "ESTABLISHED",
- "CLOSE_WAIT",
- "FIN_WAIT1",
- "CLOSING",
- "LAST_ACK",
- "FIN_WAIT2",
- "TIME_WAIT"
-};
+static const char *tcp_state[] = {"CLOSED", "LISTEN", "SYN_SENT",
+ "SYN_RECV", "ESTABLISHED", "CLOSE_WAIT",
+ "FIN_WAIT1", "CLOSING", "LAST_ACK",
+ "FIN_WAIT2", "TIME_WAIT"};
static kvm_t *kvmd;
-static u_long inpcbtable_off = 0;
+static u_long inpcbtable_off = 0;
struct inpcbtable *inpcbtable_ptr = NULL;
-# define TCP_STATE_LISTEN 1
-# define TCP_STATE_MIN 1
-# define TCP_STATE_MAX 10
+#define TCP_STATE_LISTEN 1
+#define TCP_STATE_MIN 1
+#define TCP_STATE_MAX 10
/* #endif HAVE_LIBKVM_NLIST */
#elif KERNEL_AIX
-static const char *tcp_state[] =
-{
- "CLOSED",
- "LISTEN",
- "SYN_SENT",
- "SYN_RECV",
- "ESTABLISHED",
- "CLOSE_WAIT",
- "FIN_WAIT1",
- "CLOSING",
- "LAST_ACK",
- "FIN_WAIT2",
- "TIME_WAIT"
-};
+static const char *tcp_state[] = {"CLOSED", "LISTEN", "SYN_SENT",
+ "SYN_RECV", "ESTABLISHED", "CLOSE_WAIT",
+ "FIN_WAIT1", "CLOSING", "LAST_ACK",
+ "FIN_WAIT2", "TIME_WAIT"};
-# define TCP_STATE_LISTEN 1
-# define TCP_STATE_MIN 0
-# define TCP_STATE_MAX 10
+#define TCP_STATE_LISTEN 1
+#define TCP_STATE_MIN 0
+#define TCP_STATE_MAX 10
struct netinfo_conn {
uint32_t unknow1[2];
unsigned int size;
};
-# define NETINFO_TCP 3
-extern int netinfo (int proto, void *data, int *size, int n);
+#define NETINFO_TCP 3
+extern int netinfo(int proto, void *data, int *size, int n);
#endif /* KERNEL_AIX */
-#define PORT_COLLECT_LOCAL 0x01
+#define PORT_COLLECT_LOCAL 0x01
#define PORT_COLLECT_REMOTE 0x02
-#define PORT_IS_LISTENING 0x04
+#define PORT_IS_LISTENING 0x04
-typedef struct port_entry_s
-{
+typedef struct port_entry_s {
uint16_t port;
uint16_t flags;
uint32_t count_local[TCP_STATE_MAX + 1];
struct port_entry_s *next;
} port_entry_t;
-static const char *config_keys[] =
-{
- "ListeningPorts",
- "LocalPort",
- "RemotePort",
- "AllPortsSummary"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+static const char *config_keys[] = {"ListeningPorts", "LocalPort", "RemotePort",
+ "AllPortsSummary"};
+static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
static int port_collect_listening = 0;
static int port_collect_total = 0;
static uint32_t sequence_number = 0;
#endif
-static enum
-{
- SRC_DUNNO,
- SRC_NETLINK,
- SRC_PROC
-} linux_source = SRC_DUNNO;
+static enum { SRC_DUNNO, SRC_NETLINK, SRC_PROC } linux_source = SRC_DUNNO;
#endif
-static void conn_prepare_vl (value_list_t *vl, value_t *values)
-{
+static void conn_prepare_vl(value_list_t *vl, value_t *values) {
vl->values = values;
vl->values_len = 1;
- sstrncpy (vl->plugin, "tcpconns", sizeof (vl->plugin));
- sstrncpy (vl->type, "tcp_connections", sizeof (vl->type));
+ sstrncpy(vl->plugin, "tcpconns", sizeof(vl->plugin));
+ sstrncpy(vl->type, "tcp_connections", sizeof(vl->type));
}
-static void conn_submit_port_entry (port_entry_t *pe)
-{
+static void conn_submit_port_entry(port_entry_t *pe) {
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- conn_prepare_vl (&vl, values);
+ conn_prepare_vl(&vl, values);
- if (((port_collect_listening != 0) && (pe->flags & PORT_IS_LISTENING))
- || (pe->flags & PORT_COLLECT_LOCAL))
- {
- ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
- "%"PRIu16"-local", pe->port);
+ if (((port_collect_listening != 0) && (pe->flags & PORT_IS_LISTENING)) ||
+ (pe->flags & PORT_COLLECT_LOCAL)) {
+ ssnprintf(vl.plugin_instance, sizeof(vl.plugin_instance),
+ "%" PRIu16 "-local", pe->port);
- for (int i = 1; i <= TCP_STATE_MAX; i++)
- {
+ for (int i = 1; i <= TCP_STATE_MAX; i++) {
vl.values[0].gauge = pe->count_local[i];
- sstrncpy (vl.type_instance, tcp_state[i], sizeof (vl.type_instance));
+ sstrncpy(vl.type_instance, tcp_state[i], sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values(&vl);
}
}
- if (pe->flags & PORT_COLLECT_REMOTE)
- {
- ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
- "%"PRIu16"-remote", pe->port);
+ if (pe->flags & PORT_COLLECT_REMOTE) {
+ ssnprintf(vl.plugin_instance, sizeof(vl.plugin_instance),
+ "%" PRIu16 "-remote", pe->port);
- for (int i = 1; i <= TCP_STATE_MAX; i++)
- {
+ for (int i = 1; i <= TCP_STATE_MAX; i++) {
vl.values[0].gauge = pe->count_remote[i];
- sstrncpy (vl.type_instance, tcp_state[i], sizeof (vl.type_instance));
+ sstrncpy(vl.type_instance, tcp_state[i], sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values(&vl);
}
}
} /* void conn_submit */
-static void conn_submit_port_total (void)
-{
+static void conn_submit_port_total(void) {
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- conn_prepare_vl (&vl, values);
+ conn_prepare_vl(&vl, values);
- sstrncpy (vl.plugin_instance, "all", sizeof (vl.plugin_instance));
+ sstrncpy(vl.plugin_instance, "all", sizeof(vl.plugin_instance));
- for (int i = 1; i <= TCP_STATE_MAX; i++)
- {
+ for (int i = 1; i <= TCP_STATE_MAX; i++) {
vl.values[0].gauge = count_total[i];
- sstrncpy (vl.type_instance, tcp_state[i], sizeof (vl.type_instance));
+ sstrncpy(vl.type_instance, tcp_state[i], sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values(&vl);
}
}
-static void conn_submit_all (void)
-{
+static void conn_submit_all(void) {
if (port_collect_total)
- conn_submit_port_total ();
+ conn_submit_port_total();
for (port_entry_t *pe = port_list_head; pe != NULL; pe = pe->next)
- conn_submit_port_entry (pe);
+ conn_submit_port_entry(pe);
} /* void conn_submit_all */
-static port_entry_t *conn_get_port_entry (uint16_t port, int create)
-{
+static port_entry_t *conn_get_port_entry(uint16_t port, int create) {
port_entry_t *ret;
ret = port_list_head;
- while (ret != NULL)
- {
+ while (ret != NULL) {
if (ret->port == port)
break;
ret = ret->next;
}
- if ((ret == NULL) && (create != 0))
- {
- ret = calloc (1, sizeof (*ret));
+ if ((ret == NULL) && (create != 0)) {
+ ret = calloc(1, sizeof(*ret));
if (ret == NULL)
return (NULL);
/* Removes ports that were added automatically due to the `ListeningPorts'
* setting but which are no longer listening. */
-static void conn_reset_port_entry (void)
-{
+static void conn_reset_port_entry(void) {
port_entry_t *prev = NULL;
port_entry_t *pe = port_list_head;
- memset (&count_total, '\0', sizeof(count_total));
+ memset(&count_total, '\0', sizeof(count_total));
- while (pe != NULL)
- {
+ while (pe != NULL) {
/* If this entry was created while reading the files (ant not when handling
* the configuration) remove it now. */
- if ((pe->flags & (PORT_COLLECT_LOCAL
- | PORT_COLLECT_REMOTE
- | PORT_IS_LISTENING)) == 0)
- {
+ if ((pe->flags &
+ (PORT_COLLECT_LOCAL | PORT_COLLECT_REMOTE | PORT_IS_LISTENING)) == 0) {
port_entry_t *next = pe->next;
- DEBUG ("tcpconns plugin: Removing temporary entry "
- "for listening port %"PRIu16, pe->port);
+ DEBUG("tcpconns plugin: Removing temporary entry "
+ "for listening port %" PRIu16,
+ pe->port);
if (prev == NULL)
port_list_head = next;
else
prev->next = next;
- sfree (pe);
+ sfree(pe);
pe = next;
continue;
}
- memset (pe->count_local, '\0', sizeof (pe->count_local));
- memset (pe->count_remote, '\0', sizeof (pe->count_remote));
+ memset(pe->count_local, '\0', sizeof(pe->count_local));
+ memset(pe->count_remote, '\0', sizeof(pe->count_remote));
pe->flags &= ~PORT_IS_LISTENING;
prev = pe;
}
} /* void conn_reset_port_entry */
-static int conn_handle_ports (uint16_t port_local, uint16_t port_remote, uint8_t state)
-{
+static int conn_handle_ports(uint16_t port_local, uint16_t port_remote,
+ uint8_t state) {
port_entry_t *pe = NULL;
if ((state > TCP_STATE_MAX)
#if TCP_STATE_MIN > 0
|| (state < TCP_STATE_MIN)
#endif
- )
- {
- NOTICE ("tcpconns plugin: Ignoring connection with "
- "unknown state 0x%02"PRIx8".", state);
+ ) {
+ NOTICE("tcpconns plugin: Ignoring connection with "
+ "unknown state 0x%02" PRIx8 ".",
+ state);
return (-1);
}
count_total[state]++;
/* Listening sockets */
- if ((state == TCP_STATE_LISTEN) && (port_collect_listening != 0))
- {
- pe = conn_get_port_entry (port_local, 1 /* create */);
+ if ((state == TCP_STATE_LISTEN) && (port_collect_listening != 0)) {
+ pe = conn_get_port_entry(port_local, 1 /* create */);
if (pe != NULL)
pe->flags |= PORT_IS_LISTENING;
}
- DEBUG ("tcpconns plugin: Connection %"PRIu16" <-> %"PRIu16" (%s)",
- port_local, port_remote, tcp_state[state]);
+ DEBUG("tcpconns plugin: Connection %" PRIu16 " <-> %" PRIu16 " (%s)",
+ port_local, port_remote, tcp_state[state]);
- pe = conn_get_port_entry (port_local, 0 /* no create */);
+ pe = conn_get_port_entry(port_local, 0 /* no create */);
if (pe != NULL)
pe->count_local[state]++;
- pe = conn_get_port_entry (port_remote, 0 /* no create */);
+ pe = conn_get_port_entry(port_remote, 0 /* no create */);
if (pe != NULL)
pe->count_remote[state]++;
#if KERNEL_LINUX
/* Returns zero on success, less than zero on socket error and greater than
* zero on other errors. */
-static int conn_read_netlink (void)
-{
+static int conn_read_netlink(void) {
#if HAVE_STRUCT_LINUX_INET_DIAG_REQ
int fd;
struct inet_diag_msg *r;
/* If this fails, it's likely a permission problem. We'll fall back to
* reading this information from files below. */
fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG);
- if (fd < 0)
- {
- ERROR ("tcpconns plugin: conn_read_netlink: socket(AF_NETLINK, SOCK_RAW, "
- "NETLINK_INET_DIAG) failed: %s",
- sstrerror (errno, buf, sizeof (buf)));
+ if (fd < 0) {
+ ERROR("tcpconns plugin: conn_read_netlink: socket(AF_NETLINK, SOCK_RAW, "
+ "NETLINK_INET_DIAG) failed: %s",
+ sstrerror(errno, buf, sizeof(buf)));
return (-1);
}
- struct sockaddr_nl nladdr = {
- .nl_family = AF_NETLINK
- };
+ struct sockaddr_nl nladdr = {.nl_family = AF_NETLINK};
struct nlreq req = {
- .nlh.nlmsg_len = sizeof(req),
- .nlh.nlmsg_type = TCPDIAG_GETSOCK,
- /* NLM_F_ROOT: return the complete table instead of a single entry.
- * NLM_F_MATCH: return all entries matching criteria (not implemented)
- * NLM_F_REQUEST: must be set on all request messages */
- .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
- .nlh.nlmsg_pid = 0,
- /* The sequence_number is used to track our messages. Since netlink is not
- * reliable, we don't want to end up with a corrupt or incomplete old
- * message in case the system is/was out of memory. */
- .nlh.nlmsg_seq = ++sequence_number,
- .r.idiag_family = AF_INET,
- .r.idiag_states = 0xfff,
- .r.idiag_ext = 0
- };
-
- struct iovec iov = {
- .iov_base = &req,
- .iov_len = sizeof(req)
- };
-
- struct msghdr msg = {
- .msg_name = (void*)&nladdr,
- .msg_namelen = sizeof(nladdr),
- .msg_iov = &iov,
- .msg_iovlen = 1
- };
-
- if (sendmsg (fd, &msg, 0) < 0)
- {
- ERROR ("tcpconns plugin: conn_read_netlink: sendmsg(2) failed: %s",
- sstrerror (errno, buf, sizeof (buf)));
- close (fd);
+ .nlh.nlmsg_len = sizeof(req),
+ .nlh.nlmsg_type = TCPDIAG_GETSOCK,
+ /* NLM_F_ROOT: return the complete table instead of a single entry.
+ * NLM_F_MATCH: return all entries matching criteria (not implemented)
+ * NLM_F_REQUEST: must be set on all request messages */
+ .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
+ .nlh.nlmsg_pid = 0,
+ /* The sequence_number is used to track our messages. Since netlink is not
+ * reliable, we don't want to end up with a corrupt or incomplete old
+ * message in case the system is/was out of memory. */
+ .nlh.nlmsg_seq = ++sequence_number,
+ .r.idiag_family = AF_INET,
+ .r.idiag_states = 0xfff,
+ .r.idiag_ext = 0};
+
+ struct iovec iov = {.iov_base = &req, .iov_len = sizeof(req)};
+
+ struct msghdr msg = {.msg_name = (void *)&nladdr,
+ .msg_namelen = sizeof(nladdr),
+ .msg_iov = &iov,
+ .msg_iovlen = 1};
+
+ if (sendmsg(fd, &msg, 0) < 0) {
+ ERROR("tcpconns plugin: conn_read_netlink: sendmsg(2) failed: %s",
+ sstrerror(errno, buf, sizeof(buf)));
+ close(fd);
return (-1);
}
iov.iov_base = buf;
iov.iov_len = sizeof(buf);
- while (1)
- {
+ while (1) {
int status;
struct nlmsghdr *h;
memset(&msg, 0, sizeof(msg));
- msg.msg_name = (void*)&nladdr;
+ msg.msg_name = (void *)&nladdr;
msg.msg_namelen = sizeof(nladdr);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
- status = recvmsg(fd, (void *) &msg, /* flags = */ 0);
- if (status < 0)
- {
+ status = recvmsg(fd, (void *)&msg, /* flags = */ 0);
+ if (status < 0) {
if ((errno == EINTR) || (errno == EAGAIN))
continue;
- ERROR ("tcpconns plugin: conn_read_netlink: recvmsg(2) failed: %s",
- sstrerror (errno, buf, sizeof (buf)));
- close (fd);
+ ERROR("tcpconns plugin: conn_read_netlink: recvmsg(2) failed: %s",
+ sstrerror(errno, buf, sizeof(buf)));
+ close(fd);
return (-1);
- }
- else if (status == 0)
- {
- close (fd);
- DEBUG ("tcpconns plugin: conn_read_netlink: Unexpected zero-sized "
- "reply from netlink socket.");
+ } else if (status == 0) {
+ close(fd);
+ DEBUG("tcpconns plugin: conn_read_netlink: Unexpected zero-sized "
+ "reply from netlink socket.");
return (0);
}
- h = (struct nlmsghdr*)buf;
- while (NLMSG_OK(h, status))
- {
- if (h->nlmsg_seq != sequence_number)
- {
- h = NLMSG_NEXT(h, status);
- continue;
+ h = (struct nlmsghdr *)buf;
+ while (NLMSG_OK(h, status)) {
+ if (h->nlmsg_seq != sequence_number) {
+ h = NLMSG_NEXT(h, status);
+ continue;
}
- if (h->nlmsg_type == NLMSG_DONE)
- {
- close (fd);
- return (0);
- }
- else if (h->nlmsg_type == NLMSG_ERROR)
- {
- struct nlmsgerr *msg_error;
+ if (h->nlmsg_type == NLMSG_DONE) {
+ close(fd);
+ return (0);
+ } else if (h->nlmsg_type == NLMSG_ERROR) {
+ struct nlmsgerr *msg_error;
- msg_error = NLMSG_DATA(h);
- WARNING ("tcpconns plugin: conn_read_netlink: Received error %i.",
- msg_error->error);
+ msg_error = NLMSG_DATA(h);
+ WARNING("tcpconns plugin: conn_read_netlink: Received error %i.",
+ msg_error->error);
- close (fd);
- return (1);
+ close(fd);
+ return (1);
}
r = NLMSG_DATA(h);
/* This code does not (need to) distinguish between IPv4 and IPv6. */
- conn_handle_ports (ntohs(r->id.idiag_sport),
- ntohs(r->id.idiag_dport),
- r->idiag_state);
+ conn_handle_ports(ntohs(r->id.idiag_sport), ntohs(r->id.idiag_dport),
+ r->idiag_state);
h = NLMSG_NEXT(h, status);
} /* while (NLMSG_OK) */
- } /* while (1) */
+ } /* while (1) */
/* Not reached because the while() loop above handles the exit condition. */
return (0);
#endif /* HAVE_STRUCT_LINUX_INET_DIAG_REQ */
} /* int conn_read_netlink */
-static int conn_handle_line (char *buffer)
-{
+static int conn_handle_line(char *buffer) {
char *fields[32];
- int fields_len;
+ int fields_len;
char *endptr;
uint8_t state;
- int buffer_len = strlen (buffer);
+ int buffer_len = strlen(buffer);
while ((buffer_len > 0) && (buffer[buffer_len - 1] < 32))
buffer[--buffer_len] = '\0';
if (buffer_len <= 0)
return (-1);
- fields_len = strsplit (buffer, fields, STATIC_ARRAY_SIZE (fields));
- if (fields_len < 12)
- {
- DEBUG ("tcpconns plugin: Got %i fields, expected at least 12.", fields_len);
+ fields_len = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
+ if (fields_len < 12) {
+ DEBUG("tcpconns plugin: Got %i fields, expected at least 12.", fields_len);
return (-1);
}
- port_local_str = strchr (fields[1], ':');
- port_remote_str = strchr (fields[2], ':');
+ port_local_str = strchr(fields[1], ':');
+ port_remote_str = strchr(fields[2], ':');
if ((port_local_str == NULL) || (port_remote_str == NULL))
return (-1);
return (-1);
endptr = NULL;
- port_local = (uint16_t) strtol (port_local_str, &endptr, 16);
+ port_local = (uint16_t)strtol(port_local_str, &endptr, 16);
if ((endptr == NULL) || (*endptr != '\0'))
return (-1);
endptr = NULL;
- port_remote = (uint16_t) strtol (port_remote_str, &endptr, 16);
+ port_remote = (uint16_t)strtol(port_remote_str, &endptr, 16);
if ((endptr == NULL) || (*endptr != '\0'))
return (-1);
endptr = NULL;
- state = (uint8_t) strtol (fields[3], &endptr, 16);
+ state = (uint8_t)strtol(fields[3], &endptr, 16);
if ((endptr == NULL) || (*endptr != '\0'))
return (-1);
- return (conn_handle_ports (port_local, port_remote, state));
+ return (conn_handle_ports(port_local, port_remote, state));
} /* int conn_handle_line */
-static int conn_read_file (const char *file)
-{
+static int conn_read_file(const char *file) {
FILE *fh;
char buffer[1024];
- fh = fopen (file, "r");
+ fh = fopen(file, "r");
if (fh == NULL)
return (-1);
- while (fgets (buffer, sizeof (buffer), fh) != NULL)
- {
- conn_handle_line (buffer);
+ while (fgets(buffer, sizeof(buffer), fh) != NULL) {
+ conn_handle_line(buffer);
} /* while (fgets) */
- fclose (fh);
+ fclose(fh);
return (0);
} /* int conn_read_file */
#elif HAVE_LIBKVM_NLIST
#endif /* HAVE_LIBKVM_NLIST */
-static int conn_config (const char *key, const char *value)
-{
- if (strcasecmp (key, "ListeningPorts") == 0)
- {
- if (IS_TRUE (value))
+static int conn_config(const char *key, const char *value) {
+ if (strcasecmp(key, "ListeningPorts") == 0) {
+ if (IS_TRUE(value))
port_collect_listening = 1;
else
port_collect_listening = 0;
- }
- else if ((strcasecmp (key, "LocalPort") == 0)
- || (strcasecmp (key, "RemotePort") == 0))
- {
- port_entry_t *pe;
- int port = atoi (value);
-
- if ((port < 1) || (port > 65535))
- {
- ERROR ("tcpconns plugin: Invalid port: %i", port);
- return (1);
- }
+ } else if ((strcasecmp(key, "LocalPort") == 0) ||
+ (strcasecmp(key, "RemotePort") == 0)) {
+ port_entry_t *pe;
+ int port = atoi(value);
+
+ if ((port < 1) || (port > 65535)) {
+ ERROR("tcpconns plugin: Invalid port: %i", port);
+ return (1);
+ }
- pe = conn_get_port_entry ((uint16_t) port, 1 /* create */);
- if (pe == NULL)
- {
- ERROR ("tcpconns plugin: conn_get_port_entry failed.");
- return (1);
- }
+ pe = conn_get_port_entry((uint16_t)port, 1 /* create */);
+ if (pe == NULL) {
+ ERROR("tcpconns plugin: conn_get_port_entry failed.");
+ return (1);
+ }
- if (strcasecmp (key, "LocalPort") == 0)
- pe->flags |= PORT_COLLECT_LOCAL;
- else
- pe->flags |= PORT_COLLECT_REMOTE;
- }
- else if (strcasecmp (key, "AllPortsSummary") == 0)
- {
- if (IS_TRUE (value))
+ if (strcasecmp(key, "LocalPort") == 0)
+ pe->flags |= PORT_COLLECT_LOCAL;
+ else
+ pe->flags |= PORT_COLLECT_REMOTE;
+ } else if (strcasecmp(key, "AllPortsSummary") == 0) {
+ if (IS_TRUE(value))
port_collect_total = 1;
else
port_collect_total = 0;
- }
- else
- {
+ } else {
return (-1);
}
} /* int conn_config */
#if KERNEL_LINUX
-static int conn_init (void)
-{
+static int conn_init(void) {
if (port_collect_total == 0 && port_list_head == NULL)
port_collect_listening = 1;
return (0);
} /* int conn_init */
-static int conn_read (void)
-{
+static int conn_read(void) {
int status;
- conn_reset_port_entry ();
+ conn_reset_port_entry();
- if (linux_source == SRC_NETLINK)
- {
- status = conn_read_netlink ();
- }
- else if (linux_source == SRC_PROC)
- {
+ if (linux_source == SRC_NETLINK) {
+ status = conn_read_netlink();
+ } else if (linux_source == SRC_PROC) {
int errors_num = 0;
- if (conn_read_file ("/proc/net/tcp") != 0)
+ if (conn_read_file("/proc/net/tcp") != 0)
errors_num++;
- if (conn_read_file ("/proc/net/tcp6") != 0)
+ if (conn_read_file("/proc/net/tcp6") != 0)
errors_num++;
if (errors_num < 2)
status = 0;
else
status = ENOENT;
- }
- else /* if (linux_source == SRC_DUNNO) */
+ } else /* if (linux_source == SRC_DUNNO) */
{
/* Try to use netlink for getting this data, it is _much_ faster on systems
* with a large amount of connections. */
- status = conn_read_netlink ();
- if (status == 0)
- {
- INFO ("tcpconns plugin: Reading from netlink succeeded. "
- "Will use the netlink method from now on.");
+ status = conn_read_netlink();
+ if (status == 0) {
+ INFO("tcpconns plugin: Reading from netlink succeeded. "
+ "Will use the netlink method from now on.");
linux_source = SRC_NETLINK;
- }
- else
- {
- INFO ("tcpconns plugin: Reading from netlink failed. "
- "Will read from /proc from now on.");
+ } else {
+ INFO("tcpconns plugin: Reading from netlink failed. "
+ "Will read from /proc from now on.");
linux_source = SRC_PROC;
/* return success here to avoid the "plugin failed" message. */
}
if (status == 0)
- conn_submit_all ();
+ conn_submit_all();
else
return (status);
/* #endif KERNEL_LINUX */
#elif HAVE_SYSCTLBYNAME
-static int conn_read (void)
-{
+static int conn_read(void) {
int status;
char *buffer;
- size_t buffer_len;;
+ size_t buffer_len;
+ ;
struct xinpgen *in_orig;
struct xinpgen *in_ptr;
- conn_reset_port_entry ();
+ conn_reset_port_entry();
buffer_len = 0;
- status = sysctlbyname ("net.inet.tcp.pcblist", NULL, &buffer_len, 0, 0);
- if (status < 0)
- {
- ERROR ("tcpconns plugin: sysctlbyname failed.");
+ status = sysctlbyname("net.inet.tcp.pcblist", NULL, &buffer_len, 0, 0);
+ if (status < 0) {
+ ERROR("tcpconns plugin: sysctlbyname failed.");
return (-1);
}
- buffer = malloc (buffer_len);
- if (buffer == NULL)
- {
- ERROR ("tcpconns plugin: malloc failed.");
+ buffer = malloc(buffer_len);
+ if (buffer == NULL) {
+ ERROR("tcpconns plugin: malloc failed.");
return (-1);
}
- status = sysctlbyname ("net.inet.tcp.pcblist", buffer, &buffer_len, 0, 0);
- if (status < 0)
- {
- ERROR ("tcpconns plugin: sysctlbyname failed.");
- sfree (buffer);
+ status = sysctlbyname("net.inet.tcp.pcblist", buffer, &buffer_len, 0, 0);
+ if (status < 0) {
+ ERROR("tcpconns plugin: sysctlbyname failed.");
+ sfree(buffer);
return (-1);
}
- if (buffer_len <= sizeof (struct xinpgen))
- {
- ERROR ("tcpconns plugin: (buffer_len <= sizeof (struct xinpgen))");
- sfree (buffer);
+ if (buffer_len <= sizeof(struct xinpgen)) {
+ ERROR("tcpconns plugin: (buffer_len <= sizeof (struct xinpgen))");
+ sfree(buffer);
return (-1);
}
- in_orig = (struct xinpgen *) buffer;
- for (in_ptr = (struct xinpgen *) (((char *) in_orig) + in_orig->xig_len);
- in_ptr->xig_len > sizeof (struct xinpgen);
- in_ptr = (struct xinpgen *) (((char *) in_ptr) + in_ptr->xig_len))
- {
- struct tcpcb *tp = &((struct xtcpcb *) in_ptr)->xt_tp;
- struct inpcb *inp = &((struct xtcpcb *) in_ptr)->xt_inp;
- struct xsocket *so = &((struct xtcpcb *) in_ptr)->xt_socket;
+ in_orig = (struct xinpgen *)buffer;
+ for (in_ptr = (struct xinpgen *)(((char *)in_orig) + in_orig->xig_len);
+ in_ptr->xig_len > sizeof(struct xinpgen);
+ in_ptr = (struct xinpgen *)(((char *)in_ptr) + in_ptr->xig_len)) {
+ struct tcpcb *tp = &((struct xtcpcb *)in_ptr)->xt_tp;
+ struct inpcb *inp = &((struct xtcpcb *)in_ptr)->xt_inp;
+ struct xsocket *so = &((struct xtcpcb *)in_ptr)->xt_socket;
/* Ignore non-TCP sockets */
if (so->xso_protocol != IPPROTO_TCP)
if (inp->inp_gencnt > in_orig->xig_gen)
continue;
- if (((inp->inp_vflag & INP_IPV4) == 0)
- && ((inp->inp_vflag & INP_IPV6) == 0))
+ if (((inp->inp_vflag & INP_IPV4) == 0) &&
+ ((inp->inp_vflag & INP_IPV6) == 0))
continue;
- conn_handle_ports (ntohs (inp->inp_lport), ntohs (inp->inp_fport),
- tp->t_state);
+ conn_handle_ports(ntohs(inp->inp_lport), ntohs(inp->inp_fport),
+ tp->t_state);
} /* for (in_ptr) */
in_orig = NULL;
in_ptr = NULL;
- sfree (buffer);
+ sfree(buffer);
- conn_submit_all ();
+ conn_submit_all();
return (0);
} /* int conn_read */
-/* #endif HAVE_SYSCTLBYNAME */
+ /* #endif HAVE_SYSCTLBYNAME */
#elif HAVE_LIBKVM_NLIST
-static int kread (u_long addr, void *buf, int size)
-{
+static int kread(u_long addr, void *buf, int size) {
int status;
- status = kvm_read (kvmd, addr, buf, size);
- if (status != size)
- {
- ERROR ("tcpconns plugin: kvm_read failed (got %i, expected %i): %s\n",
- status, size, kvm_geterr (kvmd));
+ status = kvm_read(kvmd, addr, buf, size);
+ if (status != size) {
+ ERROR("tcpconns plugin: kvm_read failed (got %i, expected %i): %s\n",
+ status, size, kvm_geterr(kvmd));
return (-1);
}
return (0);
} /* int kread */
-static int conn_init (void)
-{
+static int conn_init(void) {
char buf[_POSIX2_LINE_MAX];
- struct nlist nl[] =
- {
+ struct nlist nl[] = {
#define N_TCBTABLE 0
- { "_tcbtable" },
- { "" }
- };
+ {"_tcbtable"}, {""}};
int status;
- kvmd = kvm_openfiles (NULL, NULL, NULL, O_RDONLY, buf);
- if (kvmd == NULL)
- {
- ERROR ("tcpconns plugin: kvm_openfiles failed: %s", buf);
+ kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf);
+ if (kvmd == NULL) {
+ ERROR("tcpconns plugin: kvm_openfiles failed: %s", buf);
return (-1);
}
- status = kvm_nlist (kvmd, nl);
- if (status < 0)
- {
- ERROR ("tcpconns plugin: kvm_nlist failed with status %i.", status);
+ status = kvm_nlist(kvmd, nl);
+ if (status < 0) {
+ ERROR("tcpconns plugin: kvm_nlist failed with status %i.", status);
return (-1);
}
- if (nl[N_TCBTABLE].n_type == 0)
- {
- ERROR ("tcpconns plugin: Error looking up kernel's namelist: "
- "N_TCBTABLE is invalid.");
+ if (nl[N_TCBTABLE].n_type == 0) {
+ ERROR("tcpconns plugin: Error looking up kernel's namelist: "
+ "N_TCBTABLE is invalid.");
return (-1);
}
- inpcbtable_off = (u_long) nl[N_TCBTABLE].n_value;
- inpcbtable_ptr = (struct inpcbtable *) nl[N_TCBTABLE].n_value;
+ inpcbtable_off = (u_long)nl[N_TCBTABLE].n_value;
+ inpcbtable_ptr = (struct inpcbtable *)nl[N_TCBTABLE].n_value;
return (0);
} /* int conn_init */
-static int conn_read (void)
-{
+static int conn_read(void) {
struct inpcbtable table;
-#if !defined(__OpenBSD__) && (defined(__NetBSD_Version__) && __NetBSD_Version__ <= 699002700)
+#if !defined(__OpenBSD__) && \
+ (defined(__NetBSD_Version__) && __NetBSD_Version__ <= 699002700)
struct inpcb *head;
#endif
struct inpcb *next;
struct tcpcb tcpcb;
int status;
- conn_reset_port_entry ();
+ conn_reset_port_entry();
/* Read the pcbtable from the kernel */
- status = kread (inpcbtable_off, &table, sizeof (table));
+ status = kread(inpcbtable_off, &table, sizeof(table));
if (status != 0)
return (-1);
-#if defined(__OpenBSD__) || (defined(__NetBSD_Version__) && __NetBSD_Version__ > 699002700)
+#if defined(__OpenBSD__) || \
+ (defined(__NetBSD_Version__) && __NetBSD_Version__ > 699002700)
/* inpt_queue is a TAILQ on OpenBSD */
/* Get the first pcb */
- next = (struct inpcb *)TAILQ_FIRST (&table.inpt_queue);
+ next = (struct inpcb *)TAILQ_FIRST(&table.inpt_queue);
while (next)
#else
/* Get the `head' pcb */
- head = (struct inpcb *) &(inpcbtable_ptr->inpt_queue);
+ head = (struct inpcb *)&(inpcbtable_ptr->inpt_queue);
/* Get the first pcb */
- next = (struct inpcb *)CIRCLEQ_FIRST (&table.inpt_queue);
+ next = (struct inpcb *)CIRCLEQ_FIRST(&table.inpt_queue);
while (next != head)
#endif
{
/* Read the pcb pointed to by `next' into `inpcb' */
- status = kread ((u_long) next, &inpcb, sizeof (inpcb));
+ status = kread((u_long)next, &inpcb, sizeof(inpcb));
if (status != 0)
return (-1);
- /* Advance `next' */
-#if defined(__OpenBSD__) || (defined(__NetBSD_Version__) && __NetBSD_Version__ > 699002700)
+/* Advance `next' */
+#if defined(__OpenBSD__) || \
+ (defined(__NetBSD_Version__) && __NetBSD_Version__ > 699002700)
/* inpt_queue is a TAILQ on OpenBSD */
- next = (struct inpcb *)TAILQ_NEXT (&inpcb, inp_queue);
+ next = (struct inpcb *)TAILQ_NEXT(&inpcb, inp_queue);
#else
- next = (struct inpcb *)CIRCLEQ_NEXT (&inpcb, inp_queue);
+ next = (struct inpcb *)CIRCLEQ_NEXT(&inpcb, inp_queue);
#endif
- /* Ignore sockets, that are not connected. */
+/* Ignore sockets, that are not connected. */
#ifdef __NetBSD__
if (inpcb.inp_af == AF_INET6)
continue; /* XXX see netbsd/src/usr.bin/netstat/inet6.c */
#else
- if (!(inpcb.inp_flags & INP_IPV6)
- && (inet_lnaof(inpcb.inp_laddr) == INADDR_ANY))
+ if (!(inpcb.inp_flags & INP_IPV6) &&
+ (inet_lnaof(inpcb.inp_laddr) == INADDR_ANY))
continue;
- if ((inpcb.inp_flags & INP_IPV6)
- && IN6_IS_ADDR_UNSPECIFIED (&inpcb.inp_laddr6))
+ if ((inpcb.inp_flags & INP_IPV6) &&
+ IN6_IS_ADDR_UNSPECIFIED(&inpcb.inp_laddr6))
continue;
#endif
- status = kread ((u_long) inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb));
+ status = kread((u_long)inpcb.inp_ppcb, &tcpcb, sizeof(tcpcb));
if (status != 0)
return (-1);
- conn_handle_ports (ntohs(inpcb.inp_lport), ntohs(inpcb.inp_fport), tcpcb.t_state);
+ conn_handle_ports(ntohs(inpcb.inp_lport), ntohs(inpcb.inp_fport),
+ tcpcb.t_state);
} /* while (next != head) */
- conn_submit_all ();
+ conn_submit_all();
return (0);
}
#elif KERNEL_AIX
-static int conn_read (void)
-{
+static int conn_read(void) {
int size;
int nconn;
void *data;
struct netinfo_header *header;
struct netinfo_conn *conn;
- conn_reset_port_entry ();
+ conn_reset_port_entry();
size = netinfo(NETINFO_TCP, 0, 0, 0);
- if (size < 0)
- {
- ERROR ("tcpconns plugin: netinfo failed return: %i", size);
+ if (size < 0) {
+ ERROR("tcpconns plugin: netinfo failed return: %i", size);
return (-1);
}
if (size == 0)
return (0);
- if ((size - sizeof (struct netinfo_header)) % sizeof (struct netinfo_conn))
- {
- ERROR ("tcpconns plugin: invalid buffer size");
+ if ((size - sizeof(struct netinfo_header)) % sizeof(struct netinfo_conn)) {
+ ERROR("tcpconns plugin: invalid buffer size");
return (-1);
}
data = malloc(size);
- if (data == NULL)
- {
- ERROR ("tcpconns plugin: malloc failed");
+ if (data == NULL) {
+ ERROR("tcpconns plugin: malloc failed");
return (-1);
}
- if (netinfo(NETINFO_TCP, data, &size, 0) < 0)
- {
- ERROR ("tcpconns plugin: netinfo failed");
+ if (netinfo(NETINFO_TCP, data, &size, 0) < 0) {
+ ERROR("tcpconns plugin: netinfo failed");
free(data);
return (-1);
}
nconn = header->size;
conn = (struct netinfo_conn *)(data + sizeof(struct netinfo_header));
- for (int i = 0; i < nconn; conn++, i++)
- {
- conn_handle_ports (conn->srcport, conn->dstport, conn->tcp_state);
+ for (int i = 0; i < nconn; conn++, i++) {
+ conn_handle_ports(conn->srcport, conn->dstport, conn->tcp_state);
}
free(data);
- conn_submit_all ();
+ conn_submit_all();
return (0);
}
#endif /* KERNEL_AIX */
-void module_register (void)
-{
- plugin_register_config ("tcpconns", conn_config,
- config_keys, config_keys_num);
+void module_register(void) {
+ plugin_register_config("tcpconns", conn_config, config_keys, config_keys_num);
#if KERNEL_LINUX
- plugin_register_init ("tcpconns", conn_init);
+ plugin_register_init("tcpconns", conn_init);
#elif HAVE_SYSCTLBYNAME
- /* no initialization */
+ /* no initialization */
#elif HAVE_LIBKVM_NLIST
- plugin_register_init ("tcpconns", conn_init);
+ plugin_register_init("tcpconns", conn_init);
#elif KERNEL_AIX
- /* no initialization */
+/* no initialization */
#endif
- plugin_register_read ("tcpconns", conn_read);
+ plugin_register_read("tcpconns", conn_read);
} /* void module_register */
/*
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