1741 lines
42 KiB
C
1741 lines
42 KiB
C
/* GKrellM
|
|
| Copyright (C) 1999-2010 Bill Wilson
|
|
|
|
|
| Author: Bill Wilson billw@gkrellm.net
|
|
| Latest versions might be found at: http://gkrellm.net
|
|
|
|
|
|
|
|
| GKrellM is free software: you can redistribute it and/or modify it
|
|
| under the terms of the GNU General Public License as published by
|
|
| the Free Software Foundation, either version 3 of the License, or
|
|
| (at your option) any later version.
|
|
|
|
|
| GKrellM is distributed in the hope that it will be useful, but WITHOUT
|
|
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
|
| License for more details.
|
|
|
|
|
| You should have received a copy of the GNU General Public License
|
|
| along with this program. If not, see http://www.gnu.org/licenses/
|
|
|
|
|
|
|
|
| Additional permission under GNU GPL version 3 section 7
|
|
|
|
|
| If you modify this program, or any covered work, by linking or
|
|
| combining it with the OpenSSL project's OpenSSL library (or a
|
|
| modified version of that library), containing parts covered by
|
|
| the terms of the OpenSSL or SSLeay licenses, you are granted
|
|
| additional permission to convey the resulting work.
|
|
| Corresponding Source for a non-source form of such a combination
|
|
| shall include the source code for the parts of OpenSSL used as well
|
|
| as that of the covered work.
|
|
*/
|
|
|
|
#include "gkrellmd.h"
|
|
#include "gkrellmd-private.h"
|
|
#include "log-private.h"
|
|
|
|
#if !defined(WIN32)
|
|
#include <syslog.h>
|
|
#endif // !WIN32
|
|
|
|
// win32 defines addrinfo but only supports getaddrinfo call on winxp or newer
|
|
#if !defined(HAVE_GETADDRINFO) && !defined(WIN32)
|
|
struct addrinfo
|
|
{
|
|
int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
|
|
int ai_family; /* PF_xxx */
|
|
int ai_socktype; /* SOCK_xxx */
|
|
int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
|
|
size_t ai_addrlen; /* length of ai_addr */
|
|
char *ai_canonname; /* canonical name for hostname */
|
|
struct sockaddr *ai_addr; /* binary address */
|
|
struct addrinfo *ai_next; /* next structure in linked list */
|
|
};
|
|
#endif // !HAVE_GETADDRINFO
|
|
|
|
#if !defined(IPV6_V6ONLY) && defined(IPV6_BINDV6ONLY)
|
|
#define IPV6_V6ONLY IPV6_BINDV6ONLY
|
|
#endif
|
|
|
|
struct GkrellmdConfig _GK;
|
|
GkrellmdTicks GK;
|
|
|
|
GList *gkrellmd_client_list,
|
|
*gkrellmd_plugin_config_list;
|
|
|
|
static GList *allow_host_list;
|
|
|
|
#if !defined(WIN32)
|
|
static gboolean detach_flag;
|
|
|
|
struct
|
|
{
|
|
uid_t uid;
|
|
uid_t gid;
|
|
}
|
|
drop_privs = { 0, 0 };
|
|
#endif /* !defined(WIN32) */
|
|
|
|
|
|
#if defined(WIN32)
|
|
/*
|
|
Flag that determines if gkrellmd was started as a console app (FALSE)
|
|
or as a service (TRUE)
|
|
*/
|
|
static gboolean service_is_one = FALSE;
|
|
|
|
// Flag that is TRUE while gkrellmd should stay in its main loop
|
|
static gboolean service_running = FALSE;
|
|
|
|
// Unique name for the installed windows service (do not translate!)
|
|
static wchar_t* service_name = L"gkrellmd";
|
|
|
|
// User visible name for the installed windows service
|
|
static wchar_t* service_display_name = L"GKrellM Daemon";
|
|
|
|
/*
|
|
Current service status if running as a service, may be stopped or running
|
|
(pausing is not supported)
|
|
*/
|
|
static SERVICE_STATUS service_status;
|
|
|
|
/*
|
|
Handle that allows changing the service status.
|
|
Main use is to stop the running service.
|
|
*/
|
|
static SERVICE_STATUS_HANDLE service_status_handle = 0;
|
|
|
|
/*
|
|
Handle to our event log source.
|
|
The Windows Event Log is used as a replacement for syslog-logging.
|
|
*/
|
|
static HANDLE h_event_log = NULL;
|
|
|
|
#endif /* defined(WIN32) */
|
|
|
|
|
|
static gboolean
|
|
gkrellmd_syslog_init()
|
|
{
|
|
#if defined(WIN32)
|
|
h_event_log = RegisterEventSourceW(NULL, service_name);
|
|
if (h_event_log == NULL)
|
|
{
|
|
g_warning("Cannot register event source for logging into Windows Event Log.\n");
|
|
return FALSE;
|
|
}
|
|
#else
|
|
// Unix needs no logging initialization
|
|
#endif
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gkrellmd_syslog_cleanup()
|
|
{
|
|
#if defined(WIN32)
|
|
if (h_event_log)
|
|
DeregisterEventSource(h_event_log);
|
|
h_event_log = NULL;
|
|
#else
|
|
// Unix needs no further logging cleanup
|
|
#endif
|
|
return TRUE;
|
|
}
|
|
|
|
static void gkrellmd_syslog_log(GLogLevelFlags log_level, const gchar *message)
|
|
{
|
|
#if defined(WIN32)
|
|
WORD event_type;
|
|
const char *p_buf[1];
|
|
|
|
// Abort if event source is missing
|
|
if (h_event_log == NULL)
|
|
return;
|
|
|
|
event_type = EVENTLOG_INFORMATION_TYPE;
|
|
if (log_level & G_LOG_LEVEL_WARNING)
|
|
event_type = EVENTLOG_WARNING_TYPE;
|
|
if (log_level & G_LOG_LEVEL_CRITICAL || log_level & G_LOG_LEVEL_ERROR)
|
|
event_type = EVENTLOG_ERROR_TYPE;
|
|
|
|
p_buf[0] = message;
|
|
|
|
ReportEventA(
|
|
h_event_log, // Event source handle (HANDLE)
|
|
event_type, // Event type (WORD)
|
|
0, // Event category (WORD)
|
|
0, // Event identifier (DWORD)
|
|
NULL, // user security identifier (PSID)
|
|
1, // Number of substitution strings (WORD)
|
|
0, // Data Size (DWORD)
|
|
p_buf, // Pointer to strings
|
|
NULL // Pointer to Data
|
|
);
|
|
#else
|
|
int facility_priority;
|
|
|
|
// default to info and override with other states if they are more important
|
|
facility_priority = LOG_MAKEPRI(LOG_DAEMON, LOG_INFO);
|
|
if (log_level & G_LOG_LEVEL_DEBUG)
|
|
facility_priority = LOG_MAKEPRI(LOG_DAEMON, LOG_DEBUG);
|
|
if (log_level & G_LOG_LEVEL_WARNING)
|
|
facility_priority = LOG_MAKEPRI(LOG_DAEMON, LOG_WARNING);
|
|
if (log_level & G_LOG_LEVEL_ERROR)
|
|
facility_priority = LOG_MAKEPRI(LOG_DAEMON, LOG_ERR);
|
|
if (log_level & G_LOG_LEVEL_CRITICAL)
|
|
facility_priority = LOG_MAKEPRI(LOG_DAEMON, LOG_CRIT);
|
|
|
|
syslog(facility_priority, "%s", message);
|
|
#endif // defined(WIN32)
|
|
} // gkrellmd_syslog_log()
|
|
|
|
|
|
static void
|
|
make_pidfile(void)
|
|
{
|
|
#if !defined(WIN32)
|
|
FILE *f;
|
|
|
|
if (!_GK.pidfile)
|
|
return;
|
|
f = fopen(_GK.pidfile, "w");
|
|
if (f)
|
|
{
|
|
fprintf(f, "%d\n", getpid());
|
|
fclose(f);
|
|
}
|
|
else
|
|
g_warning("Can't create pidfile %s\n", _GK.pidfile);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
remove_pidfile(void)
|
|
{
|
|
#if !defined(WIN32)
|
|
if (_GK.pidfile)
|
|
unlink(_GK.pidfile);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
gkrellmd_cleanup()
|
|
{
|
|
gkrellm_sys_main_cleanup();
|
|
gkrellm_log_cleanup();
|
|
remove_pidfile();
|
|
}
|
|
|
|
static void
|
|
cb_sigterm(gint sig)
|
|
{
|
|
g_message("GKrellM Daemon %d.%d.%d%s: Exiting normally\n",
|
|
GKRELLMD_VERSION_MAJOR, GKRELLMD_VERSION_MINOR,
|
|
GKRELLMD_VERSION_REV, GKRELLMD_EXTRAVERSION);
|
|
gkrellmd_cleanup();
|
|
exit(0);
|
|
}
|
|
|
|
gint
|
|
gkrellmd_send_to_client(GkrellmdClient *client, gchar *buf)
|
|
{
|
|
gint n;
|
|
|
|
if (!client->alive)
|
|
return 0;
|
|
#if defined(MSG_NOSIGNAL)
|
|
n = send(client->fd, buf, strlen(buf), MSG_NOSIGNAL);
|
|
#else
|
|
n = send(client->fd, buf, strlen(buf), 0);
|
|
#endif
|
|
if (n < 0 && errno == EPIPE)
|
|
{
|
|
if (_GK.verbose)
|
|
g_print("Write on closed pipe to host %s\n", client->hostname);
|
|
client->alive = FALSE;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
#if 0
|
|
static gint
|
|
getline(gint fd, gchar *buf, gint len)
|
|
{
|
|
fd_set read_fds;
|
|
struct timeval tv;
|
|
gchar *s;
|
|
gint result, n;
|
|
|
|
FD_ZERO(&read_fds);
|
|
FD_SET(fd, &read_fds);
|
|
tv.tv_usec = 0;
|
|
tv.tv_sec = 15;
|
|
s = buf;
|
|
*s = '\0';
|
|
for (n = 0; n < len - 1; ++n)
|
|
{
|
|
result = select(fd + 1, &read_fds, NULL, NULL, &tv);
|
|
if (result <= 0 || read(fd, s, 1) != 1)
|
|
break;
|
|
if (*s == '\n')
|
|
{
|
|
*s = '\0';
|
|
break;
|
|
}
|
|
*++s = '\0';
|
|
}
|
|
return n;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_GETADDRINFO
|
|
static gboolean
|
|
is_valid_reverse(char *addr, char *host, sa_family_t family)
|
|
{
|
|
struct addrinfo hints, *res, *r;
|
|
int error, good;
|
|
char addrbuf[NI_MAXHOST];
|
|
|
|
/* Reject numeric addresses */
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = family;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
|
|
if (getaddrinfo(host, NULL, &hints, &res) == 0)
|
|
{
|
|
freeaddrinfo(res);
|
|
return 0;
|
|
}
|
|
|
|
/* Check for spoof */
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = family;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = AI_PASSIVE;
|
|
if (getaddrinfo(host, NULL, &hints, &res) != 0)
|
|
return 0;
|
|
good = 0;
|
|
for (r = res; good == 0 && r; r = r->ai_next)
|
|
{
|
|
error = getnameinfo(r->ai_addr, r->ai_addrlen,
|
|
addrbuf, sizeof(addrbuf), NULL, 0,
|
|
NI_NUMERICHOST | NI_WITHSCOPEID);
|
|
if (error == 0 && strcmp(addr, addrbuf) == 0)
|
|
{
|
|
good = 1;
|
|
break;
|
|
}
|
|
}
|
|
freeaddrinfo(res);
|
|
return good;
|
|
}
|
|
#endif
|
|
|
|
/* Check for CIDR match.
|
|
*/
|
|
static gboolean
|
|
cidr_match(struct sockaddr *sa, socklen_t salen, char *allowed)
|
|
{
|
|
#ifdef HAVE_GETADDRINFO
|
|
struct addrinfo hints, *res;
|
|
union {
|
|
struct sockaddr_storage ss;
|
|
struct sockaddr_in sin;
|
|
struct sockaddr_in6 sin6;
|
|
struct sockaddr sa;
|
|
} ss;
|
|
char *buf;
|
|
char *p, *ep;
|
|
guchar *addr, *pat;
|
|
uint32_t mask;
|
|
int plen;
|
|
#if defined(INET6)
|
|
int i;
|
|
#endif
|
|
gboolean result;
|
|
|
|
buf = g_strdup(allowed);
|
|
plen = -1;
|
|
if ((p = strchr(buf, '/')) != NULL)
|
|
{
|
|
plen = strtoul(p + 1, &ep, 10);
|
|
if (errno != 0 || ep == NULL || *ep != '\0' || plen < 0)
|
|
{
|
|
g_free(buf);
|
|
return FALSE;
|
|
}
|
|
*p = '\0';
|
|
allowed = buf;
|
|
}
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
|
|
result = getaddrinfo(allowed, NULL, &hints, &res);
|
|
g_free(buf);
|
|
if (result != 0)
|
|
return FALSE;
|
|
memcpy(&ss, res->ai_addr, res->ai_addrlen);
|
|
freeaddrinfo(res);
|
|
|
|
if (sa->sa_family != ss.sa.sa_family)
|
|
return FALSE;
|
|
switch (sa->sa_family)
|
|
{
|
|
#if defined(INET6)
|
|
case AF_INET6:
|
|
if (plen < 0)
|
|
plen = 128;
|
|
if (plen > 128)
|
|
return FALSE;
|
|
if (ss.sin6.sin6_scope_id != 0 &&
|
|
ss.sin6.sin6_scope_id !=
|
|
((struct sockaddr_in6 *)sa)->sin6_scope_id)
|
|
return FALSE;
|
|
addr = (guchar *)&((struct sockaddr_in6 *)sa)->sin6_addr;
|
|
pat = (guchar *)&ss.sin6.sin6_addr;
|
|
i = 0;
|
|
while (plen > 0)
|
|
{
|
|
if (plen < 32)
|
|
{
|
|
mask = htonl(~(0xffffffff >> plen));
|
|
if ((*(uint32_t *)&addr[i] & mask) !=
|
|
(*(uint32_t *)&pat[i] & mask))
|
|
return FALSE;
|
|
break;
|
|
}
|
|
if (*(uint32_t *)&addr[i] !=
|
|
*(uint32_t *)&pat[i])
|
|
return FALSE;
|
|
i += 4;
|
|
plen -= 32;
|
|
}
|
|
break;
|
|
#endif
|
|
case AF_INET:
|
|
if (plen < 0)
|
|
plen = 32;
|
|
if (plen > 32)
|
|
return FALSE;
|
|
addr = (guchar *)&((struct sockaddr_in *)sa)->sin_addr;
|
|
pat = (guchar *)&ss.sin.sin_addr;
|
|
mask = htonl(~(0xffffffff >> plen));
|
|
if ((*(uint32_t *)addr & mask) !=
|
|
(*(uint32_t *)pat & mask))
|
|
return FALSE;
|
|
break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
static gboolean
|
|
allow_host(GkrellmdClient *client, struct sockaddr *sa, socklen_t salen)
|
|
{
|
|
GList *list;
|
|
#ifdef HAVE_GETADDRINFO
|
|
int error;
|
|
char hostbuf[NI_MAXHOST], addrbuf[NI_MAXHOST];
|
|
#else
|
|
struct hostent *hostent;
|
|
#endif
|
|
gchar buf[128];
|
|
gchar *hostname = NULL,
|
|
*addr = NULL;
|
|
gchar *s, *allowed;
|
|
|
|
#ifdef HAVE_GETADDRINFO
|
|
error = getnameinfo(sa, salen, addrbuf, sizeof(addrbuf),
|
|
NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID);
|
|
if (error == 0)
|
|
{
|
|
addr = addrbuf;
|
|
error = getnameinfo(sa, salen, hostbuf, sizeof(hostbuf),
|
|
NULL, 0, NI_NAMEREQD);
|
|
if (error == 0 &&
|
|
is_valid_reverse(addrbuf, hostbuf, sa->sa_family))
|
|
hostname = hostbuf;
|
|
}
|
|
#else
|
|
hostent = gethostbyaddr((gchar *)&((struct sockaddr_in *)sa)->sin_addr,
|
|
sizeof(struct in_addr), AF_INET);
|
|
if (hostent)
|
|
hostname = hostent->h_name;
|
|
addr = inet_ntoa(((struct sockaddr_in *)sa)->sin_addr);
|
|
#endif
|
|
|
|
client->hostname = g_strdup(hostname ? hostname : addr);
|
|
|
|
if (!allow_host_list)
|
|
return TRUE;
|
|
|
|
for (list = allow_host_list; list; list = list->next)
|
|
{
|
|
allowed = (gchar *) list->data;
|
|
if ( (hostname && !strcmp(hostname, allowed))
|
|
|| (addr && !strcmp(addr, allowed))
|
|
|| !strcmp("ALL", allowed)
|
|
)
|
|
return TRUE;
|
|
|
|
if (addr && cidr_match(sa, salen, allowed))
|
|
return TRUE;
|
|
|
|
/* Check for simple IPv4 subnet match. Worry later about ranges and
|
|
| other hosts_access type patterns.
|
|
*/
|
|
if ( addr
|
|
&& (s = strrchr(allowed, (int) '.')) != NULL
|
|
&& *(s + 1) == '*' && *(s + 2) == '\0'
|
|
&& !strncmp(addr, allowed, (gint) (s - allowed + 1))
|
|
)
|
|
return TRUE;
|
|
}
|
|
|
|
snprintf(buf, sizeof(buf), _("Connection not allowed from %s\n"),
|
|
hostname ? hostname : addr);
|
|
g_warning("%s", buf);
|
|
gkrellmd_send_to_client(client, "<error>\n");
|
|
gkrellmd_send_to_client(client, buf);
|
|
return FALSE;
|
|
}
|
|
|
|
/* client sends line: gkrellm x.y.z
|
|
*/
|
|
static GkrellmdClient *
|
|
accept_client(gint fd, struct sockaddr *sa, socklen_t salen)
|
|
{
|
|
GkrellmdClient *client;
|
|
gchar buf[64], name[32];
|
|
gboolean client_limit;
|
|
gint err;
|
|
|
|
client = g_new0(GkrellmdClient, 1);
|
|
client->fd = fd;
|
|
client->alive = TRUE;
|
|
client_limit = (g_list_length(gkrellmd_client_list) >= _GK.max_clients);
|
|
|
|
if (!allow_host(client, sa, salen) || client_limit)
|
|
{
|
|
if (client_limit)
|
|
{
|
|
g_message(_("Too many clients, rejecting %s\n"), client->hostname);
|
|
gkrellmd_send_to_client(client,
|
|
"<error>\nClient limit exceeded.\n");
|
|
}
|
|
g_free(client->hostname);
|
|
g_free(client);
|
|
return NULL;
|
|
}
|
|
err = recv(fd, buf, sizeof(buf), 0);
|
|
if (err > 0)
|
|
buf[err] = '\0';
|
|
else
|
|
buf[0] = '\0';
|
|
//getline(fd, buf, sizeof(buf));
|
|
|
|
if (_GK.verbose)
|
|
g_print(_("connect string from client: %s\n"), buf);
|
|
|
|
if ( sscanf(buf, "%31s %d.%d.%d", name, &client->major_version,
|
|
&client->minor_version, &client->rev_version) == 4
|
|
&& !strcmp(name, "gkrellm")
|
|
)
|
|
{
|
|
gkrellmd_client_list = g_list_append(gkrellmd_client_list, client);
|
|
return client;
|
|
}
|
|
g_warning(_("Bad connect line from %s: %s\n"), client->hostname, buf);
|
|
gkrellmd_send_to_client(client, "<error>\nBad connect string!");
|
|
|
|
g_free(client->hostname);
|
|
g_free(client);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
remove_client(gint fd)
|
|
{
|
|
GList *list;
|
|
GkrellmdClient *client;
|
|
|
|
for (list = gkrellmd_client_list; list; list = list->next)
|
|
{
|
|
client = (GkrellmdClient *) list->data;
|
|
if (client->fd == fd)
|
|
{
|
|
g_message(_("Removing client %s\n"), client->hostname);
|
|
#if defined(WIN32)
|
|
closesocket(fd);
|
|
#else
|
|
close(fd);
|
|
#endif
|
|
g_free(client->hostname);
|
|
g_free(client);
|
|
gkrellmd_client_list = g_list_remove(gkrellmd_client_list, client);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static gint
|
|
parse_config(gchar *config, gchar *arg)
|
|
{
|
|
if (!strcmp(config, "clear-hosts") || !strcmp(config, "c"))
|
|
{
|
|
gkrellm_free_glist_and_data(&allow_host_list);
|
|
return 0;
|
|
}
|
|
if (!strcmp(config, "syslog"))
|
|
{
|
|
gkrellm_log_register(gkrellmd_syslog_log, gkrellmd_syslog_init,
|
|
gkrellmd_syslog_cleanup);
|
|
return 0;
|
|
}
|
|
#if !defined(WIN32)
|
|
if (!strcmp(config, "detach") || !strcmp(config, "d"))
|
|
{
|
|
detach_flag = TRUE;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
// All following options take one argument that should be passed in arg
|
|
if (!arg || !*arg)
|
|
return -1;
|
|
|
|
if (!strcmp(config, "update-hz") || !strcmp(config, "u"))
|
|
_GK.update_HZ = atoi(arg);
|
|
else if (!strcmp(config, "port") || !strcmp(config, "P"))
|
|
_GK.server_port = atoi(arg);
|
|
else if (!strcmp(config, "address") || !strcmp(config, "A"))
|
|
_GK.server_address = g_strdup(arg);
|
|
else if (!strcmp(config, "max-clients") || !strcmp(config, "m"))
|
|
_GK.max_clients = atoi(arg);
|
|
else if (!strcmp(config, "allow-host") || !strcmp(config, "a"))
|
|
allow_host_list = g_list_append(allow_host_list, g_strdup(arg));
|
|
else if (!strcmp(config, "plugin-enable") || !strcmp(config, "pe"))
|
|
gkrellmd_plugin_enable_list
|
|
= g_list_append(gkrellmd_plugin_enable_list, g_strdup(arg));
|
|
else if (!strcmp(config, "plugin") || !strcmp(config, "p"))
|
|
_GK.command_line_plugin = g_strdup(arg);
|
|
else if (!strcmp(config, "io-timeout"))
|
|
_GK.io_timeout = atoi(arg);
|
|
else if (!strcmp(config, "reconnect-timeout"))
|
|
_GK.reconnect_timeout = atoi(arg);
|
|
else if (!strcmp(config, "fs-interval"))
|
|
_GK.fs_interval = atoi(arg);
|
|
else if (!strcmp(config, "nfs-interval"))
|
|
_GK.nfs_interval = atoi(arg);
|
|
else if (!strcmp(config, "inet-interval"))
|
|
_GK.inet_interval = atoi(arg);
|
|
else if (!strcmp(config, "mbmon-port"))
|
|
_GK.mbmon_port = atoi(arg);
|
|
else if (!strcmp(config, "net-timer"))
|
|
_GK.net_timer = g_strdup(arg);
|
|
else if (!strcmp(config, "debug-level") || !strcmp(config, "debug"))
|
|
{
|
|
_GK.debug_level = (gint) strtoul(arg, NULL, 0);
|
|
if (_GK.debug_level > 0)
|
|
g_print("Set debug-level to 0x%x\n", _GK.debug_level);
|
|
}
|
|
else if (!strcmp(config, "logfile"))
|
|
gkrellm_log_set_filename(arg);
|
|
#if !defined(WIN32)
|
|
else if (!strcmp(config, "pidfile"))
|
|
_GK.pidfile = g_strdup(arg);
|
|
else if (!strcmp(config, "mailbox"))
|
|
gkrellmd_add_mailbox(arg);
|
|
else if (!strcmp(config, "user") || !strcmp(config, "U"))
|
|
{
|
|
struct passwd *tmp;
|
|
|
|
if ((tmp = getpwnam(arg)) != (struct passwd*) 0)
|
|
drop_privs.uid = tmp->pw_uid;
|
|
else
|
|
return -1;
|
|
}
|
|
else if (!strcmp(config, "group") || !strcmp(config, "G"))
|
|
{
|
|
struct group *tmp;
|
|
|
|
if ((tmp = getgrnam(arg)) != (struct group*) 0)
|
|
drop_privs.gid = tmp->gr_gid;
|
|
else
|
|
return -1;
|
|
}
|
|
#endif
|
|
else
|
|
return -1;
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
load_config(gchar *path)
|
|
{
|
|
FILE *f;
|
|
PluginConfigRec *cfg;
|
|
gchar buf[128+32+2], config[32], arg[128];
|
|
gchar *s, *plugin_config_block = NULL;
|
|
|
|
//g_print("Trying to load config from file '%s'\n", path);
|
|
|
|
f = g_fopen(path, "r");
|
|
if (!f)
|
|
return;
|
|
while (fgets(buf, sizeof(buf), f))
|
|
{
|
|
if (!buf[0] || buf[0] == '#')
|
|
continue;
|
|
if (buf[0] == '[' || buf[0] == '<')
|
|
{
|
|
if (buf[1] == '/')
|
|
{
|
|
g_free(plugin_config_block);
|
|
plugin_config_block = NULL;
|
|
}
|
|
else
|
|
{
|
|
if ( (s = strchr(buf, ']')) != NULL
|
|
|| (s = strchr(buf, '>')) != NULL
|
|
)
|
|
*s = '\0';
|
|
plugin_config_block = g_strdup(&buf[1]);
|
|
}
|
|
continue;
|
|
}
|
|
if (plugin_config_block)
|
|
{
|
|
cfg = g_new0(PluginConfigRec, 1);
|
|
cfg->name = g_strdup(plugin_config_block);
|
|
if ((s = strchr(buf, '\n')) != NULL)
|
|
*s = '\0';
|
|
cfg->line = g_strdup(buf);
|
|
gkrellmd_plugin_config_list
|
|
= g_list_append(gkrellmd_plugin_config_list, cfg);
|
|
}
|
|
else /* main gkrellmd config line */
|
|
{
|
|
arg[0] = '\0';
|
|
sscanf(buf, "%31s %127s", config, arg);
|
|
parse_config(config, arg);
|
|
}
|
|
}
|
|
fclose(f);
|
|
}
|
|
|
|
const gchar *
|
|
gkrellmd_config_getline(GkrellmdMonitor *mon)
|
|
{
|
|
GList *list;
|
|
PluginConfigRec *cfg;
|
|
|
|
if (!mon->privat)
|
|
{
|
|
mon->privat = g_new0(GkrellmdMonitorPrivate, 1);
|
|
mon->privat->config_list = gkrellmd_plugin_config_list;
|
|
}
|
|
|
|
for (list = mon->privat->config_list; list; list = list->next)
|
|
{
|
|
cfg = (PluginConfigRec *) list->data;
|
|
if (!strcmp(cfg->name, mon->name))
|
|
{
|
|
mon->privat->config_list = list->next;
|
|
return cfg->line;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
read_config(void)
|
|
{
|
|
gchar *path;
|
|
#if defined(WIN32)
|
|
gchar *install_path;
|
|
#endif
|
|
|
|
_GK.update_HZ = 3;
|
|
_GK.debug_level = 0;
|
|
_GK.max_clients = 2;
|
|
_GK.server_port = GKRELLMD_SERVER_PORT;
|
|
|
|
_GK.fs_interval = 2;
|
|
_GK.nfs_interval = 16;
|
|
_GK.inet_interval = 1;
|
|
|
|
#if defined(GKRELLMD_SYS_ETC)
|
|
path = g_build_filename(GKRELLMD_SYS_ETC, GKRELLMD_CONFIG, NULL);
|
|
load_config(path);
|
|
g_free(path);
|
|
#endif
|
|
|
|
#if defined(GKRELLMD_LOCAL_ETC)
|
|
path = g_build_filename(GKRELLMD_LOCAL_ETC, GKRELLMD_CONFIG, NULL);
|
|
load_config(path);
|
|
g_free(path);
|
|
#endif
|
|
|
|
// on windows also load config from INSTALLDIR/etc/gkrellmd.conf
|
|
#if defined(WIN32)
|
|
install_path = g_win32_get_package_installation_directory_of_module(NULL);
|
|
if (install_path != NULL)
|
|
{
|
|
path = g_build_filename(install_path, "etc", GKRELLMD_CONFIG, NULL);
|
|
load_config(path);
|
|
g_free(path);
|
|
g_free(install_path);
|
|
}
|
|
#endif
|
|
|
|
_GK.homedir = (gchar *) g_get_home_dir();
|
|
if (_GK.homedir == NULL)
|
|
_GK.homedir = "."; // FIXME: doesn't look right to me
|
|
|
|
path = g_build_filename(_GK.homedir, GKRELLMD_USER_CONFIG, NULL);
|
|
load_config(path);
|
|
g_free(path);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
#if defined(WIN32)
|
|
|
|
g_print(_("usage: gkrellmd command [options]\n"));
|
|
g_print(_("commands:\n"));
|
|
g_print(_(" --console run gkrellmd on console (not as a service)\n"));
|
|
g_print(_(" --install install gkrellmd service and exit\n"));
|
|
g_print(_(" --uninstall uninstall gkrellmd service and exit\n"));
|
|
g_print(_(" -h, --help display this help and exit\n"));
|
|
g_print(_(" -v, --version output version information and exit\n"));
|
|
g_print(_("options (only for command '--console'):\n"));
|
|
g_print(_(" -u, --update-hz F Monitor update frequency\n"));
|
|
g_print(_(" -m, --max-clients N Number of simultaneous clients\n"));
|
|
g_print(_(" -A, --address A Address of network interface to listen on\n"));
|
|
g_print(_(" -P, --port P Server port to listen on\n"));
|
|
g_print(_(" -a, --allow-host host Allow connections from specified hosts\n"));
|
|
g_print(_(" -c, --clear-hosts Clears the current list of allowed hosts\n"));
|
|
g_print(_(" --io-timeout N Close connection after N seconds of no I/O\n"));
|
|
g_print(_(" --reconnect-timeout N Try to connect every N seconds after\n"
|
|
" a disconnect\n"));
|
|
g_print(_(" -p, --plugin name Enable a command line plugin\n"));
|
|
g_print(_(" -pe, --plugin-enable name Enable an installed plugin\n"));
|
|
g_print(_(" --plist List plugins and exit\n"));
|
|
g_print(_(" --plog Print plugin install log\n"));
|
|
g_print( " --logfile path Enable logging to a file\n");
|
|
g_print( " --syslog Enable logging to syslog\n");
|
|
g_print(_(" -V, --verbose increases the verbosity of gkrellmd\n"));
|
|
g_print(_(" -debug, --debug-level n Turn debugging on for selective code sections.\n"));
|
|
|
|
#else
|
|
|
|
g_print(_("usage: gkrellmd [options]\n"));
|
|
g_print(_("options:\n"));
|
|
g_print(_(" -u, --update-hz F Monitor update frequency\n"));
|
|
g_print(_(" -m, --max-clients N Number of simultaneous clients\n"));
|
|
g_print(_(" -A, --address A Address of network interface to listen on\n"));
|
|
g_print(_(" -P, --port P Server port to listen on\n"));
|
|
g_print(_(" -a, --allow-host host Allow connections from specified hosts\n"));
|
|
g_print(_(" -c, --clear-hosts Clears the current list of allowed hosts\n"));
|
|
g_print(_(" --io-timeout N Close connection after N seconds of no I/O\n"));
|
|
g_print(_(" --reconnect-timeout N Try to connect every N seconds after\n"
|
|
" a disconnect\n"));
|
|
g_print(_(" --mailbox path Send local mailbox counts to gkrellm clients.\n"));
|
|
g_print(_(" -d, --detach Run in background and detach from terminal\n"));
|
|
g_print(_(" -U, --user username Change to this username after startup\n"));
|
|
g_print(_(" -G, --group groupname Change to this group after startup\n"));
|
|
g_print(_(" -p, --plugin name Enable a command line plugin\n"));
|
|
g_print(_(" -pe, --plugin-enable name Enable an installed plugin\n"));
|
|
g_print(_(" --plist List plugins and exit\n"));
|
|
g_print(_(" --plog Print plugin install log\n"));
|
|
g_print( " --logfile path Enable logging to a file\n");
|
|
g_print( " --syslog Enable logging to the system syslog file\n");
|
|
g_print(_(" --pidfile path Create a PID file\n"));
|
|
g_print(_(" -V, --verbose increases the verbosity of gkrellmd\n"));
|
|
g_print(_(" -h, --help display this help and exit\n"));
|
|
g_print(_(" -v, --version output version information and exit\n"));
|
|
g_print(_(" -debug, --debug-level n Turn debugging on for selective code sections.\n"));
|
|
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
get_args(gint argc, gchar **argv)
|
|
{
|
|
gchar *s;
|
|
gint i, r;
|
|
|
|
for (i = 1; i < argc; ++i)
|
|
{
|
|
s = argv[i];
|
|
if (*s == '-')
|
|
{
|
|
++s;
|
|
if (*s == '-')
|
|
++s;
|
|
}
|
|
|
|
if (!strcmp(s, "verbose") || !strcmp(s, "V"))
|
|
_GK.verbose += 1;
|
|
else if (!strcmp(s, "plist"))
|
|
_GK.list_plugins = TRUE;
|
|
else if (!strcmp(s, "plog"))
|
|
_GK.log_plugins = TRUE;
|
|
#if !defined(WIN32)
|
|
else if (!strcmp(s, "without-libsensors"))
|
|
_GK.without_libsensors = TRUE;
|
|
#endif /* !WIN32 */
|
|
else if ( i < argc
|
|
&& ((r = parse_config(s, (i < argc - 1) ? argv[i+1] : NULL)) >= 0)
|
|
)
|
|
{
|
|
i += r;
|
|
}
|
|
else
|
|
{
|
|
g_print(_("Bad arg: %s\n"), argv[i]);
|
|
usage();
|
|
exit(0);
|
|
}
|
|
} // for()
|
|
}
|
|
|
|
|
|
static int *
|
|
socksetup(int af)
|
|
{
|
|
struct addrinfo hints, *res, *r;
|
|
gint maxs, *s, *socks;
|
|
#ifndef HAVE_GETADDRINFO
|
|
struct sockaddr_in sin;
|
|
#else
|
|
gchar portnumber[6];
|
|
gint error;
|
|
#endif
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
#ifdef HAVE_GETADDRINFO
|
|
hints.ai_flags = AI_PASSIVE;
|
|
hints.ai_family = af;
|
|
snprintf(portnumber, sizeof(portnumber), "%d", _GK.server_port);
|
|
if (!_GK.server_address || strlen(_GK.server_address) == 0)
|
|
{
|
|
error = getaddrinfo(NULL, portnumber, &hints, &res);
|
|
}
|
|
else
|
|
{
|
|
error = getaddrinfo(_GK.server_address, portnumber, &hints, &res);
|
|
}
|
|
if (error)
|
|
{
|
|
g_warning("gkrellmd %s\n", gai_strerror(error));
|
|
return NULL;
|
|
}
|
|
#else
|
|
/* Set up the address structure for the listen socket and bind the
|
|
| listen address to the socket.
|
|
*/
|
|
hints.ai_family = PF_INET;
|
|
hints.ai_addrlen = sizeof(struct sockaddr_in);
|
|
hints.ai_next = NULL;
|
|
hints.ai_addr = (struct sockaddr *) &sin;
|
|
sin.sin_family = PF_INET;
|
|
if (!_GK.server_address || strlen(_GK.server_address) == 0)
|
|
{
|
|
sin.sin_addr.s_addr = INADDR_ANY;
|
|
}
|
|
else
|
|
{
|
|
sin.sin_addr.s_addr = inet_addr(_GK.server_address);
|
|
}
|
|
sin.sin_port = htons(_GK.server_port);
|
|
res = &hints;
|
|
#endif
|
|
|
|
/* count max number of sockets we may open */
|
|
for (maxs = 0, r = res; r; r = r->ai_next, maxs++)
|
|
;
|
|
socks = malloc((maxs + 1) * sizeof(int));
|
|
if (!socks)
|
|
{
|
|
g_warning("Could not allocate memory for sockets\n");
|
|
return NULL;
|
|
}
|
|
|
|
*socks = 0; /* num of sockets counter at start of array */
|
|
s = socks + 1;
|
|
for (r = res; r; r = r->ai_next)
|
|
{
|
|
*s = socket(r->ai_family, r->ai_socktype, r->ai_protocol);
|
|
if (*s < 0)
|
|
continue;
|
|
|
|
/* SO_REUSEADDR flag allows the server to restart immediately
|
|
*/
|
|
if (1)
|
|
{
|
|
#if defined(WIN32)
|
|
const char on = 1;
|
|
#else
|
|
const int on = 1;
|
|
#endif
|
|
if (setsockopt(*s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
|
|
{
|
|
g_warning("gkrellmd: setsockopt (SO_REUSEADDR) failed\n");
|
|
#if defined(WIN32)
|
|
closesocket(*s);
|
|
#else
|
|
close(*s);
|
|
#endif
|
|
continue;
|
|
}
|
|
}
|
|
|
|
#ifdef IPV6_V6ONLY
|
|
if (r->ai_family == AF_INET6)
|
|
{
|
|
const int on = 1;
|
|
|
|
if (setsockopt(*s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0)
|
|
{
|
|
g_warning("gkrellmd: setsockopt (IPV6_V6ONLY) failed\n");
|
|
#if defined(WIN32)
|
|
closesocket(*s);
|
|
#else
|
|
close(*s);
|
|
#endif
|
|
continue;
|
|
}
|
|
}
|
|
#endif
|
|
if (bind(*s, r->ai_addr, r->ai_addrlen) < 0)
|
|
{
|
|
#if defined(WIN32)
|
|
closesocket(*s);
|
|
#else
|
|
close(*s);
|
|
#endif
|
|
continue;
|
|
}
|
|
(*socks)++;
|
|
s++;
|
|
}
|
|
|
|
#ifdef HAVE_GETADDRINFO
|
|
if (res)
|
|
freeaddrinfo(res);
|
|
#endif
|
|
|
|
if (*socks == 0)
|
|
{
|
|
g_warning("Could not bind to any socket\n");
|
|
free(socks);
|
|
return NULL;
|
|
}
|
|
return socks;
|
|
}
|
|
|
|
#if !defined(WIN32)
|
|
/* XXX: Recent glibc seems to have daemon(), too. */
|
|
#if defined(BSD4_4)
|
|
#define HAVE_DAEMON
|
|
#endif
|
|
|
|
#if !defined(HAVE_DAEMON) && !defined(WIN32) && !defined(__solaris__)
|
|
#include <paths.h>
|
|
#endif
|
|
|
|
#if !defined(_PATH_DEVNULL)
|
|
#define _PATH_DEVNULL "/dev/null"
|
|
#endif
|
|
|
|
static gboolean
|
|
detach_from_terminal(void)
|
|
{
|
|
#if !defined(HAVE_DAEMON)
|
|
gint i, fd;
|
|
#endif /* HAVE_DAEMON */
|
|
|
|
if (getppid() == 1) /* already a daemon */
|
|
return TRUE;
|
|
|
|
#if defined(HAVE_DAEMON)
|
|
if (daemon(0, 0))
|
|
{
|
|
g_warning("Detach failed: %s\n", strerror(errno));
|
|
return FALSE;
|
|
}
|
|
#else
|
|
i = fork();
|
|
if (i > 0)
|
|
exit(0);
|
|
|
|
if (i < 0 || setsid() == -1) /* new session process group */
|
|
{
|
|
g_warning("Detach failed: %s\n", strerror(errno));
|
|
return FALSE;
|
|
}
|
|
|
|
if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1)
|
|
{
|
|
dup2(fd, STDIN_FILENO);
|
|
dup2(fd, STDOUT_FILENO);
|
|
dup2(fd, STDERR_FILENO);
|
|
if (fd > 2)
|
|
close(fd);
|
|
}
|
|
|
|
if (chdir("/") != 0)
|
|
{
|
|
g_warning("Detach failed in chdir(\"/\"): %s\n", strerror(errno));
|
|
return FALSE;
|
|
}
|
|
#endif /* HAVE_DAEMON */
|
|
|
|
// signal(SIGCHLD, SIG_IGN);
|
|
signal(SIGTSTP, SIG_IGN);
|
|
signal(SIGTTOU, SIG_IGN);
|
|
signal(SIGTTIN, SIG_IGN);
|
|
signal(SIGHUP, SIG_IGN);
|
|
#if !defined(MSG_NOSIGNAL)
|
|
signal(SIGPIPE, SIG_IGN);
|
|
#endif /* MSG_NOSIGNAL */
|
|
return TRUE;
|
|
}
|
|
#endif /* !defined(WIN32) */
|
|
|
|
|
|
static void
|
|
drop_privileges(void)
|
|
{
|
|
#if !defined(WIN32)
|
|
if (drop_privs.gid > (uid_t)0)
|
|
{
|
|
(void) setgroups((size_t)0, (gid_t*)0);
|
|
(void) setgid(drop_privs.gid);
|
|
}
|
|
if (drop_privs.uid > (uid_t)0)
|
|
(void) setuid(drop_privs.uid);
|
|
#endif
|
|
}
|
|
|
|
|
|
static gint
|
|
gkrellmd_run(gint argc, gchar **argv)
|
|
{
|
|
union {
|
|
#ifdef HAVE_GETADDRINFO
|
|
struct sockaddr_storage ss;
|
|
#else
|
|
struct sockaddr_in ss;
|
|
#endif
|
|
struct sockaddr_in sin;
|
|
struct sockaddr sa;
|
|
} client_addr;
|
|
fd_set read_fds, test_fds;
|
|
struct timeval tv;
|
|
GkrellmdClient *client;
|
|
size_t addr_len;
|
|
gint fd, server_fd, client_fd, i;
|
|
#if defined(WIN32)
|
|
gulong nbytes;
|
|
#else
|
|
gint nbytes;
|
|
#endif /* defined(WIN32) */
|
|
gint max_fd = -1;
|
|
gint listen_fds = 0;
|
|
gint interval, result;
|
|
|
|
read_config();
|
|
get_args(argc, argv);
|
|
|
|
// first message that might get logged
|
|
g_message("Starting GKrellM Daemon %d.%d.%d%s\n", GKRELLMD_VERSION_MAJOR,
|
|
GKRELLMD_VERSION_MINOR, GKRELLMD_VERSION_REV,
|
|
GKRELLMD_EXTRAVERSION);
|
|
|
|
if (_GK.verbose)
|
|
g_print("update_HZ=%d\n", _GK.update_HZ);
|
|
|
|
#if defined(WIN32)
|
|
if (!service_is_one)
|
|
{
|
|
signal(SIGTERM, cb_sigterm);
|
|
signal(SIGINT, cb_sigterm);
|
|
}
|
|
#else
|
|
if ( detach_flag
|
|
&& !_GK.log_plugins && !_GK.list_plugins && _GK.debug_level == 0
|
|
)
|
|
{
|
|
if (detach_from_terminal() == FALSE)
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
signal(SIGTERM, cb_sigterm);
|
|
signal(SIGQUIT, cb_sigterm);
|
|
signal(SIGTSTP, SIG_IGN);
|
|
signal(SIGINT, cb_sigterm);
|
|
}
|
|
#endif /* defined(WIN32) */
|
|
|
|
make_pidfile();
|
|
gkrellm_sys_main_init();
|
|
drop_privileges();
|
|
|
|
_GK.start_time = time(0);
|
|
if (_GK.update_HZ < 1 || _GK.update_HZ > 10)
|
|
_GK.update_HZ = 3;
|
|
if (_GK.fs_interval < 1 || _GK.fs_interval > 1000)
|
|
_GK.fs_interval = 2;
|
|
if (_GK.nfs_interval > 10000)
|
|
_GK.nfs_interval = 16;
|
|
if (_GK.inet_interval > 20)
|
|
_GK.inet_interval = 20;
|
|
|
|
gkrellmd_load_monitors();
|
|
|
|
_GK.server_fd = socksetup(PF_UNSPEC);
|
|
if (_GK.server_fd == NULL)
|
|
{
|
|
g_warning("socket() failed: %s\n", strerror(errno));
|
|
gkrellmd_cleanup();
|
|
return 1;
|
|
}
|
|
|
|
/* Listen on the socket so a client gkrellm can connect.
|
|
*/
|
|
FD_ZERO(&read_fds);
|
|
for (i = 1; i <= _GK.server_fd[0]; ++i)
|
|
{
|
|
if (listen(_GK.server_fd[i], 5) == -1)
|
|
{
|
|
#if defined(WIN32)
|
|
closesocket(_GK.server_fd[i]);
|
|
#else
|
|
close(_GK.server_fd[i]);
|
|
#endif
|
|
continue;
|
|
}
|
|
++listen_fds;
|
|
FD_SET(_GK.server_fd[i], &read_fds);
|
|
if (max_fd < _GK.server_fd[i])
|
|
max_fd = _GK.server_fd[i];
|
|
}
|
|
if (listen_fds <= 0)
|
|
{
|
|
g_warning("listen() failed: %s\n", strerror(errno));
|
|
gkrellmd_cleanup();
|
|
return 1;
|
|
}
|
|
|
|
interval = 1000000 / _GK.update_HZ;
|
|
|
|
gkrellm_debug(DEBUG_SERVER, "Entering main event loop\n");
|
|
// main event loop
|
|
#if defined(WIN32)
|
|
/* endless loop if:
|
|
- we're a service and our service_running flag is TRUE
|
|
- we're a console-app (--console argument passed at startup
|
|
*/
|
|
while(service_running == TRUE || service_is_one == FALSE)
|
|
#else
|
|
while(1)
|
|
#endif
|
|
{
|
|
test_fds = read_fds;
|
|
addr_len = sizeof(client_addr.ss);
|
|
tv.tv_usec = interval;
|
|
tv.tv_sec = 0;
|
|
|
|
result = select(max_fd + 1, &test_fds, NULL, NULL, &tv);
|
|
if (result == -1)
|
|
{
|
|
if (errno == EINTR)
|
|
continue;
|
|
g_warning("select() failed: %s\n", strerror(errno));
|
|
gkrellmd_cleanup();
|
|
return 1;
|
|
}
|
|
|
|
#if 0 /* BUG, result is 0 when test_fds has a set fd!! */
|
|
if (result == 0)
|
|
{
|
|
gkrellmd_update_monitors();
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
for (fd = 0; fd <= max_fd; ++fd)
|
|
{
|
|
if (!FD_ISSET(fd, &test_fds))
|
|
continue;
|
|
server_fd = -1;
|
|
for (i = 1; i <= _GK.server_fd[0]; ++i)
|
|
{
|
|
if (fd == _GK.server_fd[i])
|
|
{
|
|
server_fd = fd;
|
|
break;
|
|
}
|
|
}
|
|
if (server_fd >= 0)
|
|
{
|
|
gkrellm_debug(DEBUG_SERVER, "Calling accept() for new client connection\n");
|
|
client_fd = accept(server_fd,
|
|
&client_addr.sa,
|
|
(socklen_t *) (void *)&addr_len);
|
|
if (client_fd == -1)
|
|
{
|
|
g_warning("accept() failed: %s\n",
|
|
strerror(errno));
|
|
gkrellmd_cleanup();
|
|
return 1;
|
|
}
|
|
if (client_fd > max_fd)
|
|
max_fd = client_fd;
|
|
client = accept_client(client_fd,
|
|
&client_addr.sa, addr_len);
|
|
if (!client)
|
|
{
|
|
#if defined(WIN32)
|
|
closesocket(client_fd);
|
|
#else
|
|
close(client_fd);
|
|
#endif
|
|
continue;
|
|
}
|
|
FD_SET(client_fd, &read_fds);
|
|
gkrellmd_serve_setup(client);
|
|
|
|
g_message(_("Accepted client %s:%u\n"),
|
|
client->hostname,
|
|
ntohs(client_addr.sin.sin_port));
|
|
}
|
|
else
|
|
{
|
|
gkrellm_debug(DEBUG_SERVER, "Reading data from client connection\n");
|
|
#if defined(WIN32)
|
|
ioctlsocket(fd, FIONREAD, &nbytes);
|
|
#else
|
|
ioctl(fd, FIONREAD, &nbytes);
|
|
#endif
|
|
if (nbytes == 0)
|
|
{
|
|
remove_client(fd);
|
|
FD_CLR(fd, &read_fds);
|
|
}
|
|
else
|
|
gkrellmd_client_read(fd, nbytes);
|
|
}
|
|
}
|
|
gkrellmd_update_monitors();
|
|
} // while(1)
|
|
return 0;
|
|
} // gkrellmd_main()
|
|
|
|
|
|
#if defined(WIN32)
|
|
static void service_update_status(DWORD newState)
|
|
{
|
|
service_status.dwCurrentState = newState;
|
|
SetServiceStatus(service_status_handle, &service_status);
|
|
}
|
|
|
|
void WINAPI service_control_handler(DWORD controlCode)
|
|
{
|
|
switch (controlCode)
|
|
{
|
|
case SERVICE_CONTROL_SHUTDOWN:
|
|
case SERVICE_CONTROL_STOP:
|
|
service_update_status(SERVICE_STOP_PENDING);
|
|
service_running = FALSE;
|
|
return;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void WINAPI service_main(DWORD argc, WCHAR* argv[])
|
|
{
|
|
gchar **argv_utf8;
|
|
DWORD i;
|
|
|
|
/* Init service status */
|
|
service_status.dwServiceType = SERVICE_WIN32;
|
|
service_status.dwCurrentState = SERVICE_STOPPED;
|
|
service_status.dwControlsAccepted = 0;
|
|
service_status.dwWin32ExitCode = NO_ERROR;
|
|
service_status.dwServiceSpecificExitCode = NO_ERROR;
|
|
service_status.dwCheckPoint = 0;
|
|
service_status.dwWaitHint = 0;
|
|
|
|
service_status_handle = RegisterServiceCtrlHandlerW(service_name, service_control_handler);
|
|
if (service_status_handle)
|
|
{
|
|
// convert all strings in argv pointer array from utf16 to utf8
|
|
argv_utf8 = g_malloc(argc * sizeof(gchar *));
|
|
for (i = 0; i < argc; i++)
|
|
argv_utf8[i] = g_utf16_to_utf8(argv[i], -1, NULL, NULL, NULL);
|
|
|
|
// service is starting
|
|
service_update_status(SERVICE_START_PENDING);
|
|
|
|
// service is running
|
|
service_status.dwControlsAccepted |= (SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);
|
|
service_update_status(SERVICE_RUNNING);
|
|
|
|
service_running = TRUE;
|
|
|
|
// gkrellmd_main returns on error or as soon as
|
|
// service_running is FALSE (see service_control_handler())
|
|
gkrellmd_run(argc, argv_utf8);
|
|
|
|
// service was stopped
|
|
service_update_status(SERVICE_STOP_PENDING);
|
|
|
|
// services are not stopped via process signals so we have to
|
|
// clean up like in cb_sigterm() but without calling exit()!
|
|
g_message("GKrellM Daemon %d.%d.%d%s: Exiting normally\n",
|
|
GKRELLMD_VERSION_MAJOR, GKRELLMD_VERSION_MINOR,
|
|
GKRELLMD_VERSION_REV, GKRELLMD_EXTRAVERSION);
|
|
gkrellmd_cleanup();
|
|
|
|
// free all strings in pointer array and free the array itself
|
|
for (i = 0; i < argc; i++)
|
|
g_free(argv_utf8[i]);
|
|
g_free(argv_utf8);
|
|
|
|
// service is now stopped
|
|
service_status.dwControlsAccepted &= ~(SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);
|
|
service_update_status(SERVICE_STOPPED);
|
|
|
|
// process is automatically terminated by windows now
|
|
}
|
|
}
|
|
|
|
void service_run()
|
|
{
|
|
SERVICE_TABLE_ENTRYW service_table[] =
|
|
{ {service_name, service_main}, { 0, 0 } };
|
|
service_is_one = TRUE;
|
|
// Blocking system call, will return if service is not needed anymore
|
|
StartServiceCtrlDispatcherW(service_table);
|
|
}
|
|
|
|
static gboolean service_wait_for_stop(SC_HANDLE serviceHandle)
|
|
{
|
|
static const gulong waitTimeoutSec = 30;
|
|
SERVICE_STATUS status;
|
|
GTimer *waitTimer = NULL;
|
|
gboolean ret = FALSE;
|
|
|
|
if (!QueryServiceStatus(serviceHandle, &status))
|
|
{
|
|
g_warning("Could not query status of %ls (%ld)\n", service_display_name, GetLastError());
|
|
return FALSE;
|
|
}
|
|
waitTimer = g_timer_new(); /* create and start */
|
|
while (status.dwCurrentState == SERVICE_STOP_PENDING)
|
|
{
|
|
g_usleep(status.dwWaitHint * 1000);
|
|
if (!QueryServiceStatus(serviceHandle, &status))
|
|
{
|
|
g_warning("Could not query status of %ls (%ld)\n", service_display_name, GetLastError());
|
|
ret = FALSE;
|
|
break;
|
|
}
|
|
if (status.dwCurrentState == SERVICE_STOPPED)
|
|
{
|
|
ret = TRUE;
|
|
break;
|
|
}
|
|
if (g_timer_elapsed(waitTimer, NULL) > waitTimeoutSec)
|
|
{
|
|
g_warning("Stopping %ls timed out\n", service_display_name);
|
|
ret = FALSE;
|
|
break;
|
|
}
|
|
} /*while*/
|
|
g_timer_destroy(waitTimer);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static gboolean service_stop(SC_HANDLE serviceHandle)
|
|
{
|
|
SERVICE_STATUS svcStatus;
|
|
if (!QueryServiceStatus(serviceHandle, &svcStatus))
|
|
{
|
|
g_warning("Could not query status of %ls (%ld)\n", service_display_name, GetLastError());
|
|
return FALSE;
|
|
}
|
|
/* service not running at all, just return that stopping worked out */
|
|
if (svcStatus.dwCurrentState == SERVICE_STOPPED)
|
|
{
|
|
g_print(_("%ls already stopped\n"), service_display_name);
|
|
return TRUE;
|
|
}
|
|
/* service already stopping, just wait for its exit */
|
|
if (svcStatus.dwCurrentState == SERVICE_STOP_PENDING)
|
|
{
|
|
return service_wait_for_stop(serviceHandle);
|
|
}
|
|
/* Service is running, let's stop it */
|
|
if (!ControlService(serviceHandle, SERVICE_CONTROL_STOP, &svcStatus))
|
|
{
|
|
g_warning(_("Could not stop %ls (%ld)\n"), service_display_name, GetLastError());
|
|
return FALSE;
|
|
}
|
|
// Wait for the service to stop.
|
|
if (svcStatus.dwCurrentState == SERVICE_STOP_PENDING)
|
|
{
|
|
return service_wait_for_stop(serviceHandle);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static gboolean service_install()
|
|
{
|
|
WCHAR path[_MAX_PATH + 1];
|
|
SC_HANDLE scmHandle;
|
|
SC_HANDLE svcHandle;
|
|
DWORD err;
|
|
|
|
g_print(_("Installing %ls...\n"), service_display_name);
|
|
|
|
if (GetModuleFileNameW(0, path, sizeof(path)/sizeof(path[0])) < 1)
|
|
{
|
|
g_warning("Could not determine path to gkrellmd service binary, error 0x%ld\n", GetLastError());
|
|
return FALSE;
|
|
}
|
|
|
|
scmHandle = OpenSCManagerW(NULL, NULL, SC_MANAGER_CREATE_SERVICE);
|
|
if (!scmHandle)
|
|
{
|
|
err = GetLastError();
|
|
if (err == ERROR_ACCESS_DENIED)
|
|
g_warning("Could not connect to service manager, access denied\n");
|
|
else
|
|
g_warning("Could not connect to service manager, error 0x%lXd\n", err);
|
|
return FALSE;
|
|
}
|
|
|
|
svcHandle = CreateServiceW(scmHandle, service_name, service_display_name,
|
|
SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START,
|
|
SERVICE_ERROR_NORMAL, path, 0, 0, 0, 0, 0);
|
|
if (!svcHandle)
|
|
{
|
|
err = GetLastError();
|
|
if (err == ERROR_ACCESS_DENIED)
|
|
g_warning("Could not install %ls, access denied\n", service_display_name);
|
|
else if (err == ERROR_SERVICE_EXISTS || err == ERROR_DUPLICATE_SERVICE_NAME)
|
|
g_warning("Could not install %ls, a service of the same name already exists\n", service_display_name);
|
|
else
|
|
g_warning("Could not install %ls, error 0x%lX\n", service_display_name, err);
|
|
CloseServiceHandle(scmHandle);
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
g_print(_("%ls has been installed.\n"), service_display_name);
|
|
}
|
|
|
|
g_print(_("Starting %ls...\n"), service_display_name);
|
|
if (!StartServiceW(svcHandle, 0, NULL))
|
|
{
|
|
err = GetLastError();
|
|
if (err == ERROR_ACCESS_DENIED)
|
|
g_warning("Could not start %ls, access denied\n", service_display_name);
|
|
else
|
|
g_warning("Could not start %ls, error 0x%lX\n", service_display_name, err);
|
|
}
|
|
else
|
|
{
|
|
g_print(_("%ls has been started.\n"), service_display_name);
|
|
}
|
|
|
|
CloseServiceHandle(svcHandle);
|
|
CloseServiceHandle(scmHandle);
|
|
return TRUE;
|
|
} /* service_install() */
|
|
|
|
|
|
static gboolean service_uninstall()
|
|
{
|
|
SC_HANDLE scmHandle;
|
|
SC_HANDLE svcHandle;
|
|
BOOL delRet = FALSE;
|
|
gchar *errmsg;
|
|
|
|
g_print(_("Uninstalling %ls...\n"), service_display_name);
|
|
|
|
scmHandle = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT);
|
|
if (!scmHandle)
|
|
{
|
|
errmsg = g_win32_error_message(GetLastError());
|
|
g_warning("Could not connect to service manager: %s\n", errmsg);
|
|
g_free(errmsg);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
svcHandle = OpenServiceW(scmHandle, service_name,
|
|
SERVICE_STOP | SERVICE_QUERY_STATUS | DELETE);
|
|
if (!svcHandle)
|
|
{
|
|
errmsg = g_win32_error_message(GetLastError());
|
|
g_warning("Could not open %ls: %s\n", service_display_name, errmsg);
|
|
g_free(errmsg);
|
|
}
|
|
else
|
|
{
|
|
// handle to gkrellm service acquired, now stop and uninstall it
|
|
if (service_stop(svcHandle))
|
|
{
|
|
delRet = DeleteService(svcHandle);
|
|
if (!delRet)
|
|
{
|
|
errmsg = g_win32_error_message(GetLastError());
|
|
g_warning("Could not uninstall %ls: %s\n",
|
|
service_display_name, errmsg);
|
|
g_free(errmsg);
|
|
}
|
|
else
|
|
{
|
|
g_print(_("%ls has been uninstalled.\n"), service_display_name);
|
|
}
|
|
}
|
|
CloseServiceHandle(svcHandle);
|
|
}
|
|
CloseServiceHandle(scmHandle);
|
|
|
|
return delRet ? TRUE : FALSE;
|
|
} /* service_uninstall() */
|
|
#endif /* defined(WIN32) */
|
|
|
|
|
|
GkrellmdTicks *
|
|
gkrellmd_ticks(void)
|
|
{
|
|
return &GK;
|
|
}
|
|
|
|
|
|
gint
|
|
gkrellmd_get_timer_ticks(void)
|
|
{
|
|
return GK.timer_ticks;
|
|
}
|
|
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
int i;
|
|
char *opt;
|
|
|
|
#ifdef ENABLE_NLS
|
|
#ifdef LOCALEDIR
|
|
#if defined(WIN32)
|
|
gchar *install_path;
|
|
gchar *locale_dir;
|
|
// Prepend app install path to locale dir
|
|
install_path = g_win32_get_package_installation_directory_of_module(NULL);
|
|
if (install_path != NULL)
|
|
{
|
|
locale_dir = g_build_filename(install_path, LOCALEDIR, NULL);
|
|
bindtextdomain(PACKAGE_D, locale_dir);
|
|
g_free(locale_dir);
|
|
g_free(install_path);
|
|
}
|
|
#else
|
|
bindtextdomain(PACKAGE_D, LOCALEDIR);
|
|
#endif /* !WIN32 */
|
|
#endif /* LOCALEDIR */
|
|
textdomain(PACKAGE_D);
|
|
bind_textdomain_codeset(PACKAGE_D, "UTF-8");
|
|
#endif /* ENABLE_NLS */
|
|
|
|
// Init logging-chain
|
|
gkrellm_log_init();
|
|
|
|
/* Parse arguments for actions that exit gkrellmd immediately */
|
|
for (i = 1; i < argc; ++i)
|
|
{
|
|
opt = argv[i];
|
|
if (*opt == '-')
|
|
{
|
|
++opt;
|
|
if (*opt == '-')
|
|
++opt;
|
|
}
|
|
|
|
if (!strcmp(opt, "help") || !strcmp(opt, "h"))
|
|
{
|
|
usage();
|
|
return 0;
|
|
}
|
|
else if (!strcmp(opt, "version") || !strcmp(opt, "v"))
|
|
{
|
|
g_print("gkrellmd %d.%d.%d%s\n", GKRELLMD_VERSION_MAJOR,
|
|
GKRELLMD_VERSION_MINOR, GKRELLMD_VERSION_REV,
|
|
GKRELLMD_EXTRAVERSION);
|
|
return 0;
|
|
}
|
|
#if defined(WIN32)
|
|
else if (!strcmp(opt, "install"))
|
|
{
|
|
return (service_install() ? 1 : 0);
|
|
}
|
|
else if (!strcmp(opt, "uninstall"))
|
|
{
|
|
return (service_uninstall() ? 1 : 0);
|
|
}
|
|
else if (!strcmp(opt, "console"))
|
|
{
|
|
/*
|
|
Special case for windows: run gkrellmd on console and not as
|
|
a service. This is helpful for debugging purposes.
|
|
*/
|
|
int retVal;
|
|
int newArgc = 0;
|
|
char **newArgv = malloc((argc - 1) * sizeof(char *));
|
|
int j;
|
|
for (j = 0; j < argc; ++j)
|
|
{
|
|
/* filter out option "--console" */
|
|
if (j == i)
|
|
continue;
|
|
newArgv[newArgc++] = argv[j];
|
|
}
|
|
retVal = gkrellmd_run(newArgc, newArgv);
|
|
free(newArgv);
|
|
return retVal;
|
|
}
|
|
#endif /* defined(WIN32) */
|
|
}
|
|
|
|
#if defined(WIN32)
|
|
// win32: register service and wait for the service to be started/stopped
|
|
service_run();
|
|
return 0;
|
|
#else
|
|
// Unix: just enter main loop
|
|
return gkrellmd_run(argc, argv);
|
|
#endif
|
|
}
|