* Aman Gupta <aman at tmm1.net>
**/
+#define _DEFAULT_SOURCE
#define _BSD_SOURCE /* For struct ip_mreq */
#include "collectd.h"
/* Re enable deprecation warnings */
# pragma GCC diagnostic warning "-Wdeprecated-declarations"
# endif
+# if GCRYPT_VERSION_NUMBER < 0x010600
GCRY_THREAD_OPTION_PTHREAD_IMPL;
+# endif
#endif
#ifndef IPV6_ADD_MEMBERSHIP
gcry_cipher_hd_t cypher;
unsigned char password_hash[32];
#endif
+ cdtime_t next_resolve_reconnect;
+ cdtime_t resolve_interval;
};
struct sockent_server
static int network_config_ttl = 0;
/* Ethernet - (IPv6 + UDP) = 1500 - (40 + 8) = 1452 */
static size_t network_config_packet_size = 1452;
-static int network_config_forward = 0;
-static int network_config_stats = 0;
+static _Bool network_config_forward = 0;
+static _Bool network_config_stats = 0;
static sockent_t *sending_sockets = NULL;
static char *send_buffer;
static char *send_buffer_ptr;
static int send_buffer_fill;
+static cdtime_t send_buffer_last_update;
static value_list_t send_buffer_vl = VALUE_LIST_STATIC;
static pthread_mutex_t send_buffer_lock = PTHREAD_MUTEX_INITIALIZER;
_Bool received = 0;
int status;
- if (network_config_forward != 0)
+ if (network_config_forward)
return (1);
if (vl->meta == NULL)
* above doesn't count, as it doesn't implicitly initalize Libgcrypt.
*
* tl;dr: keep all these gry_* statements in this exact order please. */
+# if GCRYPT_VERSION_NUMBER < 0x010600
gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
+# endif
gcry_check_version (NULL);
gcry_control (GCRYCTL_INIT_SECMEM, 32768);
gcry_control (GCRYCTL_INITIALIZATION_FINISHED);
} /* int write_part_string */
static int parse_part_values (void **ret_buffer, size_t *ret_buffer_len,
- value_t **ret_values, int *ret_num_values)
+ value_t **ret_values, size_t *ret_num_values)
{
char *buffer = *ret_buffer;
size_t buffer_len = *ret_buffer_len;
*ret_buffer = buffer;
*ret_buffer_len = buffer_len - pkg_length;
- *ret_num_values = pkg_numval;
+ *ret_num_values = (size_t) pkg_numval;
*ret_values = pkg_values;
sfree (pkg_types);
{
sockent_t *se;
- if ((type != SOCKENT_TYPE_CLIENT) || (type != SOCKENT_TYPE_SERVER))
+ if ((type != SOCKENT_TYPE_CLIENT) && (type != SOCKENT_TYPE_SERVER))
return (NULL);
se = malloc (sizeof (*se));
if (type == SOCKENT_TYPE_SERVER)
{
se->data.server.fd = NULL;
+ se->data.server.fd_num = 0;
#if HAVE_LIBGCRYPT
se->data.server.security_level = SECURITY_LEVEL_NONE;
se->data.server.auth_file = NULL;
{
se->data.client.fd = -1;
se->data.client.addr = NULL;
+ se->data.client.resolve_interval = 0;
+ se->data.client.next_resolve_reconnect = 0;
#if HAVE_LIBGCRYPT
se->data.client.security_level = SECURITY_LEVEL_NONE;
se->data.client.username = NULL;
return (0);
} /* }}} int sockent_init_crypto */
+static int sockent_client_disconnect (sockent_t *se) /* {{{ */
+{
+ struct sockent_client *client;
+
+ if ((se == NULL) || (se->type != SOCKENT_TYPE_CLIENT))
+ return (EINVAL);
+
+ client = &se->data.client;
+ if (client->fd >= 0) /* connected */
+ {
+ close (client->fd);
+ client->fd = -1;
+ }
+
+ sfree (client->addr);
+ client->addrlen = 0;
+
+ return (0);
+} /* }}} int sockent_client_disconnect */
+
static int sockent_client_connect (sockent_t *se) /* {{{ */
{
static c_complain_t complaint = C_COMPLAIN_INIT_STATIC;
struct addrinfo ai_hints;
struct addrinfo *ai_list = NULL, *ai_ptr;
int status;
+ _Bool reconnect = 0;
+ cdtime_t now;
if ((se == NULL) || (se->type != SOCKENT_TYPE_CLIENT))
return (EINVAL);
client = &se->data.client;
- if (client->fd >= 0) /* already connected */
+
+ now = cdtime ();
+ if (client->resolve_interval != 0 && client->next_resolve_reconnect < now) {
+ DEBUG("network plugin: Reconnecting socket, resolve_interval = %lf, next_resolve_reconnect = %lf",
+ CDTIME_T_TO_DOUBLE(client->resolve_interval), CDTIME_T_TO_DOUBLE(client->next_resolve_reconnect));
+ reconnect = 1;
+ }
+
+ if (client->fd >= 0 && !reconnect) /* already connected and not stale*/
return (0);
memset (&ai_hints, 0, sizeof (ai_hints));
for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
{
+ if (client->fd >= 0) /* when we reconnect */
+ sockent_client_disconnect(se);
+
client->fd = socket (ai_ptr->ai_family,
ai_ptr->ai_socktype,
ai_ptr->ai_protocol);
freeaddrinfo (ai_list);
if (client->fd < 0)
return (-1);
- return (0);
-} /* }}} int sockent_client_connect */
-
-static int sockent_client_disconnect (sockent_t *se) /* {{{ */
-{
- struct sockent_client *client;
-
- if ((se == NULL) || (se->type != SOCKENT_TYPE_CLIENT))
- return (EINVAL);
-
- client = &se->data.client;
- if (client->fd >= 0) /* connected */
- {
- close (client->fd);
- client->fd = -1;
- }
-
- sfree (client->addr);
- client->addrlen = 0;
+ if (client->resolve_interval > 0)
+ client->next_resolve_reconnect = now + client->resolve_interval;
return (0);
-} /* }}} int sockent_client_disconnect */
+} /* }}} int sockent_client_connect */
/* Open the file descriptors for a initialized sockent structure. */
static int sockent_server_listen (sockent_t *se) /* {{{ */
if (se == NULL)
return (-1);
+ assert (se->data.server.fd == NULL);
+ assert (se->data.server.fd_num == 0);
+
node = se->node;
service = se->service;
char buffer[network_config_packet_size];
int buffer_len;
- int i;
- int status;
+ size_t i;
+ int status = 0;
receive_list_entry_t *private_list_head;
receive_list_entry_t *private_list_tail;
uint64_t private_list_length;
- assert (listen_sockets_num > 0);
+ assert (listen_sockets_num > 0);
private_list_head = NULL;
private_list_tail = NULL;
while (listen_loop == 0)
{
status = poll (listen_sockets_pollfd, listen_sockets_num, -1);
-
if (status <= 0)
{
char errbuf[1024];
if (errno == EINTR)
continue;
- ERROR ("poll failed: %s",
+ ERROR ("network plugin: poll(2) failed: %s",
sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
+ break;
}
for (i = 0; (i < listen_sockets_num) && (status > 0); i++)
if (buffer_len < 0)
{
char errbuf[1024];
- ERROR ("recv failed: %s",
- sstrerror (errno, errbuf,
- sizeof (errbuf)));
- return (-1);
+ status = (errno != 0) ? errno : -1;
+ ERROR ("network plugin: recv(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ break;
}
stats_octets_rx += ((uint64_t) buffer_len);
if (ent == NULL)
{
ERROR ("network plugin: malloc failed.");
- return (-1);
+ status = ENOMEM;
+ break;
}
memset (ent, 0, sizeof (receive_list_entry_t));
ent->data = malloc (network_config_packet_size);
{
sfree (ent);
ERROR ("network plugin: malloc failed.");
- return (-1);
+ status = ENOMEM;
+ break;
}
ent->fd = listen_sockets_pollfd[i].fd;
ent->next = NULL;
private_list_tail = NULL;
private_list_length = 0;
}
+
+ status = 0;
} /* for (listen_sockets_pollfd) */
+
+ if (status != 0)
+ break;
} /* while (listen_loop == 0) */
/* Make sure everything is dispatched before exiting. */
receive_list_tail = private_list_tail;
receive_list_length += private_list_length;
- private_list_head = NULL;
- private_list_tail = NULL;
- private_list_length = 0;
-
pthread_cond_signal (&receive_list_cond);
pthread_mutex_unlock (&receive_list_lock);
}
- return (0);
+ return (status);
} /* }}} int network_receive */
static void *receive_thread (void __attribute__((unused)) *arg)
memset (send_buffer, 0, network_config_packet_size);
send_buffer_ptr = send_buffer;
send_buffer_fill = 0;
+ send_buffer_last_update = 0;
memset (&send_buffer_vl, 0, sizeof (send_buffer_vl));
} /* int network_init_buffer */
/* status == bytes added to the buffer */
send_buffer_fill += status;
send_buffer_ptr += status;
+ send_buffer_last_update = cdtime();
stats_values_sent++;
}
return ((status < 0) ? -1 : 0);
} /* int network_write */
-static int network_config_set_boolean (const oconfig_item_t *ci, /* {{{ */
- int *retval)
-{
- if ((ci->values_num != 1)
- || ((ci->values[0].type != OCONFIG_TYPE_BOOLEAN)
- && (ci->values[0].type != OCONFIG_TYPE_STRING)))
- {
- ERROR ("network plugin: The `%s' config option needs "
- "exactly one boolean argument.", ci->key);
- return (-1);
- }
-
- if (ci->values[0].type == OCONFIG_TYPE_BOOLEAN)
- {
- if (ci->values[0].value.boolean)
- *retval = 1;
- else
- *retval = 0;
- }
- else
- {
- char *str = ci->values[0].value.string;
-
- if (IS_TRUE (str))
- *retval = 1;
- else if (IS_FALSE (str))
- *retval = 0;
- else
- {
- ERROR ("network plugin: Cannot parse string value `%s' of the `%s' "
- "option as boolean value.",
- str, ci->key);
- return (-1);
- }
- }
-
- return (0);
-} /* }}} int network_config_set_boolean */
-
static int network_config_set_ttl (const oconfig_item_t *ci) /* {{{ */
{
- int tmp;
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
- {
- WARNING ("network plugin: The `TimeToLive' config option needs exactly "
- "one numeric argument.");
- return (-1);
- }
+ int tmp = 0;
- tmp = (int) ci->values[0].value.number;
- if ((tmp > 0) && (tmp <= 255))
+ if (cf_util_get_int (ci, &tmp) != 0)
+ return (-1);
+ else if ((tmp > 0) && (tmp <= 255))
network_config_ttl = tmp;
else {
WARNING ("network plugin: The `TimeToLive' must be between 1 and 255.");
- return (-1);
+ return (-1);
}
return (0);
static int network_config_set_interface (const oconfig_item_t *ci, /* {{{ */
int *interface)
{
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("network plugin: The `Interface' config option needs exactly "
- "one string argument.");
- return (-1);
- }
+ char if_name[256];
- if (interface == NULL)
+ if (cf_util_get_string_buffer (ci, if_name, sizeof (if_name)) != 0)
return (-1);
- *interface = if_nametoindex (ci->values[0].value.string);
-
+ *interface = if_nametoindex (if_name);
return (0);
} /* }}} int network_config_set_interface */
static int network_config_set_buffer_size (const oconfig_item_t *ci) /* {{{ */
{
- int tmp;
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
- {
- WARNING ("network plugin: The `MaxPacketSize' config option needs exactly "
- "one numeric argument.");
- return (-1);
- }
+ int tmp = 0;
- tmp = (int) ci->values[0].value.number;
- if ((tmp >= 1024) && (tmp <= 65535))
+ if (cf_util_get_int (ci, &tmp) != 0)
+ return (-1);
+ else if ((tmp >= 1024) && (tmp <= 65535))
network_config_packet_size = tmp;
-
- return (0);
-} /* }}} int network_config_set_buffer_size */
-
-#if HAVE_LIBGCRYPT
-static int network_config_set_string (const oconfig_item_t *ci, /* {{{ */
- char **ret_string)
-{
- char *tmp;
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("network plugin: The `%s' config option needs exactly "
- "one string argument.", ci->key);
+ else {
+ WARNING ("network plugin: The `MaxPacketSize' must be between 1024 and 65535.");
return (-1);
}
- tmp = strdup (ci->values[0].value.string);
- if (tmp == NULL)
- return (-1);
-
- sfree (*ret_string);
- *ret_string = tmp;
-
return (0);
-} /* }}} int network_config_set_string */
-#endif /* HAVE_LIBGCRYPT */
+} /* }}} int network_config_set_buffer_size */
#if HAVE_LIBGCRYPT
static int network_config_set_security_level (oconfig_item_t *ci, /* {{{ */
#if HAVE_LIBGCRYPT
if (strcasecmp ("AuthFile", child->key) == 0)
- network_config_set_string (child, &se->data.server.auth_file);
+ cf_util_get_string (child, &se->data.server.auth_file);
else if (strcasecmp ("SecurityLevel", child->key) == 0)
network_config_set_security_level (child,
&se->data.server.security_level);
else
#endif /* HAVE_LIBGCRYPT */
if (strcasecmp ("Interface", child->key) == 0)
- network_config_set_interface (child,
- &se->interface);
+ network_config_set_interface (child, &se->interface);
else
{
WARNING ("network plugin: Option `%s' is not allowed here.",
status = sockent_server_listen (se);
if (status != 0)
{
- ERROR ("network plugin: network_config_add_server: sockent_server_listen failed.");
+ ERROR ("network plugin: network_config_add_listen: sockent_server_listen failed.");
sockent_destroy (se);
return (-1);
}
#if HAVE_LIBGCRYPT
if (strcasecmp ("Username", child->key) == 0)
- network_config_set_string (child, &se->data.client.username);
+ cf_util_get_string (child, &se->data.client.username);
else if (strcasecmp ("Password", child->key) == 0)
- network_config_set_string (child, &se->data.client.password);
+ cf_util_get_string (child, &se->data.client.password);
else if (strcasecmp ("SecurityLevel", child->key) == 0)
network_config_set_security_level (child,
&se->data.client.security_level);
else
#endif /* HAVE_LIBGCRYPT */
if (strcasecmp ("Interface", child->key) == 0)
- network_config_set_interface (child,
- &se->interface);
+ network_config_set_interface (child, &se->interface);
+ else if (strcasecmp ("ResolveInterval", child->key) == 0)
+ cf_util_get_cdtime(child, &se->data.client.resolve_interval);
else
{
WARNING ("network plugin: Option `%s' is not allowed here.",
else if (strcasecmp ("MaxPacketSize", child->key) == 0)
network_config_set_buffer_size (child);
else if (strcasecmp ("Forward", child->key) == 0)
- network_config_set_boolean (child, &network_config_forward);
+ cf_util_get_boolean (child, &network_config_forward);
else if (strcasecmp ("ReportStats", child->key) == 0)
- network_config_set_boolean (child, &network_config_stats);
+ cf_util_get_boolean (child, &network_config_stats);
else
{
WARNING ("network plugin: Option `%s' is not allowed here.",
network_init_gcrypt ();
#endif
- if (network_config_stats != 0)
+ if (network_config_stats)
plugin_register_read ("network", network_stats_read);
plugin_register_shutdown ("network", network_shutdown);
* just send the buffer if `flush' is called - if the requested value was in
* there, good. If not, well, then there is nothing to flush.. -octo
*/
-static int network_flush (__attribute__((unused)) cdtime_t timeout,
+static int network_flush (cdtime_t timeout,
__attribute__((unused)) const char *identifier,
__attribute__((unused)) user_data_t *user_data)
{
pthread_mutex_lock (&send_buffer_lock);
if (send_buffer_fill > 0)
- flush_buffer ();
-
+ {
+ if (timeout > 0)
+ {
+ cdtime_t now = cdtime ();
+ if ((send_buffer_last_update + timeout) > now)
+ {
+ pthread_mutex_unlock (&send_buffer_lock);
+ return (0);
+ }
+ }
+ flush_buffer ();
+ }
pthread_mutex_unlock (&send_buffer_lock);
return (0);
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